- openSUSE Security Announce

SuSE Security Announcement: shadow/login (SuSE-SA:2001:034)
by Roman Drahtmueller 23 Oct '01

23 Oct '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: shadow/login Announcement-ID: SuSE-SA:2001:034 Date: Tuesday, Oct 23rd 2001 18:00 MEST Affected SuSE versions: 6.3, 6.4, 7.0, 7.1, 7.2, 7.3 Vulnerability Type: local privilege escalation Severity (1-10): 2 SuSE default package: yes Other affected systems: most linux systems, common problem on linux-like systems. Content of this advisory: 1) security vulnerability resolved: shadow/login problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Multiple Linux vendors have issued security announcements about failures of the /bin/login program to properly initialize the privileges of an authenticated user if the PAM module pam_limits is enabled. The bug has been categorized as a sequence bug, and is located in the code of the login program itself: A call to getpwnam(3) returns a pointer to a struct passwd, and the data is being used. Then, a call to PAM routines cause getpwnam(3) to be called again, but beyond the programmer's control or knowledge. The pointer as returned by the first getpwnam(3) remains the same, but the data may be different. By consequence, the data is in an undefined state. The error appears with the pam_limits PAM module only because other PAM modules do not call getpwnam(3). SuSE developers did not succeed in reproducing the error on SuSE Linux installations since SuSE distributions do not come with the standard login implementation from the util-linux collection. Instead, a version maintained by Thorsten Kukuk <kukuk(a)suse.de> is used. This login implementation may cause wrong group IDs to be set in very rare cases. The harm of this bug is therefore considerably small on SuSE Linux. However, we provide fixed rpm packages that remedy the problem. Since the bug is not limited to the login program but to all programs that authenticate users, more security announcements in this field are to be expected. The Linux vendors cooperate to share the workload that results from the audit of these programs. To install the updates, please download the update package for your distribution and use the command 'rpm -Uhv file.rpm' to apply the update. Please run "SuSEconfig" after performing the package update to make sure that the permissions of your files are configured as the security settings of your installation define. Alternatively, if you have disabled SuSEconfig, check for the permissions of the files /usr/bin/chage, /usr/bin/chfn, /usr/bin/chsh, /usr/bin/expiry, /usr/bin/gpasswd and /usr/bin/passwd to suit your needs. Setting these executeables to 4755 owned by root enables their functionality, removing the setuid bit (chmod -s) disables it. i386 Intel Platform: SuSE-7.3 ftp://ftp.suse.com/pub/suse/i386/update/7.3/a1/shadow-20000902-144.i386.rpm 9380496a4a248aeac73d7136de381348 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/shadow-20000902-144.src.rpm b595cea811bb92aa895974aee2fd5968 SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/a1/shadow-20000902-145.i386.rpm 18e33d4b728b49403c2679c560b52f06 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/shadow-20000902-145.src.rpm 0d9fb9cec79cdd4671306658a103fc6b SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/a1/shadow-20000902-145.i386.rpm a5b2177d66048f988249e0acbc9648bf source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/shadow-20000902-145.src.rpm 4525572bf268b73004774a25d7f5de2a SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/a1/shadow-19990827-170.i386.rpm 2be3765b08ce9d94abbd4932dbe3f39b source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/shadow-19990827-170.src.rpm 97935450371dde96cb92134ab8596b85 SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/a1/shadow-19990827-145.i386.rpm c6d07aa8662e00d501f9fbb9d57f71bb source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/shadow-19990827-145.src.rpm 79d9e99e67fcd23d64508eafe5070b36 SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/a1/shadow-19990827-145.i386.rpm 82c4466697251685c5f1fa733c0ad4e2 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/shadow-19990827-145.src.rpm bac32336670e134146af62886e3d477e Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/a1/shadow-20000902-92.sparc.rpm 3e63326bd5dd2dd3e9d8175b6db918e0 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/shadow-20000902-92.src.rpm c95b2761cc4d9b417394a550d43716ca SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/a1/shadow-19990827-2.sparc.rpm 5ce1d42bb0e5a6677666390b9980de5d source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/shadow-19990827-2.src.rpm 622dc8e8c6d6bf90f09d79b144a20533 AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/a1/shadow-20000902-88.alpha.rpm ed882226bcb5241e105fb0f6466bf476 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/shadow-20000902-88.src.rpm b70743683ca521d66be357b90baff035 SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/a1/shadow-19990827-74.alpha.rpm 778ebfcaacc9087e6c781f6a10a68a75 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/shadow-19990827-74.src.rpm 68d957bf5d0cc942e12501056d05f0bd SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/a1/shadow-19990827-74.alpha.rpm e7646c335fa009506535412daf344480 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/shadow-19990827-74.src.rpm 3d748914265b37b15b42687e5ff87945 SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/a1/shadow-19990827-74.alpha.rpm c1cb80bb6d7a15a445550c739ced029b source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/shadow-19990827-74.src.rpm 0b05d59fffc9ff8bd1cb922df7a84fac PPC Power PC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/a1/shadow-20000902-61.ppc.rpm a1dbc8bb966db28469fabe583d157bed source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/shadow-20000902-61.src.rpm 2b2f0fbcb842149cb095fff125f54279 SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/a1/shadow-19990827-182.ppc.rpm d55986fc84158f06dcbfea0c7812037f source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/shadow-19990827-182.src.rpm dc84f0301b4a4daeae1fb6465f0d16c1 SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/a1/shadow-19990827-182.ppc.rpm 3d7e644c70e6d98944ff623b24bbfde0 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/shadow-19990827-182.src.rpm 646985dc82d9845832db6863fba9442d ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - Linux kernel Security bugs have been found in both the 2.2 and 2.4 kernel series of all currently supported SuSE Linux distributions (6.3-7.3), including the freshly appeared SuSE-7.3. These bugs allow a local attacker to gain root privileges, but there is no remote attack as of now. As a temporary workaround, it is possible for experienced users of linux-like systems to disable all setuid bits from all files in the installed system using a find command with a -exec option. We are currently in the process of testing the update kernels of both 2.2 (2.2.19) and 2.4 (2.4.13) series to make sure that these update kernels will have the same level of stability and robustness as expected from SuSE linux systems. The official kernel rpm packages will be announced in a SuSE Security announcement during the second half of this week. In the meanwhile, the directory ftp://ftp.suse.com/pub/people/mantel/next/ contains the preliminary update packages for testing (2.2.19 packages will be available shortly). Please proceed with the update as described in http://www.suse.de/de/support/security/2001_018_kernel_txt.txt and report any problems that you may find to feedback(a)suse.de. - openssh After stabilizing the openssh package, updates for the distributions 6.4-7.2 are currently being prepared. The update packages fix a security problem related to the recently discovered problems with source ip based access restrictions in a user's ~/.ssh/authorized_keys2 file. The packages will appear shortly on our ftp servers. Please note that packages for the distributions 6.3 and up including 7.0 containing cryptographic software are located on the German ftp server ftp.suse.de, all other packages can be found on ftp.suse.com at the usual location. - htdig (ht://Dig) htdig, a powerful indexing and information gathering tool for a webserver, has been found vulnerable to a weakness where commandline options can be passed on to the cgi program as a result of weak runtime environment checking. The security announcement by Thomas Biege is waiting for the update packages to reach the ftp-server (currently transferring). Please continue to watch the suse-security-announce mailing list for new security announcements. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CpkBogQ57vSBEQQAk/GN+ftr7+DBlSoixDDpfRnUk+jApGEt8hCnrnjV nPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45t4E0fKyLVzDerCRFB1swz/mNDxT26DLy sdBV5fwNHTPhxa67goAZVrehQPqJEckkIpYriOaYcKpF3n5fQIZMEfMaHEElQhcX ML8AoJVXDkJYh7vI8EUB8ZURNLZMEECNA/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6T epRdLZhaylwVF/iu7uIn62ZUL4//NTOCDY7V63qg4iba/fUbOsWtEnGaiE7mQuAl sSWvRspwRA9/g9rdVf3/JdLJrLmKBTheyG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQn Jn2euqylHRubEQP/aL53NZK0kBdvrKgff6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+ mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiYI2lTRYT4uMdHuwVC3b4DqAKmoy375FER wHkrMVyKBJslv8QtbAWw5A1CAUseaHo+91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1 U0UgUGFja2FnZSBTaWduaW5nIEtleSA8YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUC Oe70gQUJA8JnAAQLCgMEAxUDAgMWAgECF4AACgkQqE7a6JyACspfLACffAYA+NM8 NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0xY7WbKoXs1+72b2AiEYEEBECAAYFAjpw XlIACgkQnkDjEAAKq6TczgCgi+ddhWb7+FWcfeE6WwPZccqAHowAnjjtRyGwHLQH r5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk /xGJJREt7V12iSafaRzGuH8xWvIz1bb+VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6i JXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq2pudfwljp52lYVM53jgPYEz0q/v3091n lZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU+lDQT2EC6VKaxeWK8pNt6UFDwICRDQxK nlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKNbWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852 Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelx ufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7U VCiSfb9CV38dmeHdPCEEjDUWquFYEnvj3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qT Jzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBEVE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN 89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiU XpRoFCdglMznbcAyCk9C2wqb2j/D1Z2BeSBaGCSFkR6pRLebnE17LWcu72Iy+r0z +JecbPiyDpDZj4apn7IC81aNFGi7fNITsHODbwwjiwADBgf/YPvVdzkc8OC7ztac EWCanwylKvxCdKzTDA+DfES6WUYShyiVJvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/p dGy1aKtJZrAnFEsofpmOj8VoqyyFgp/yAGQBp12+mXek7SCZRhuqalDfEMRiWEJ6 J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxxQqNQXL6Z3NSxS61p+5n6BseiDUI39xxk KTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwbsklszZt6xbU+R0SjFqTvjPWx6eHfqbmN C9WMDdTjGrXDDKXFp2aYlokfN6It9vsbVlGNlOwHt/JjGoPMxW6Xqj0FLA7/Vewg CdXW64hMBBgRAgAMBQI57vSSBQkDwmcAAAoJEKhO2uicgArKSyIAmwUHf/vtKQfc mVg4asR7U6XQl0bAAJ4pO22B5U8UH6IYl2LBCXFqw5+5fA== =rVRn - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBO9WaOXey5gA9JdPZAQFRVgf/Q7zvHx1SKSCitzYdZQooGzusMXsKYAK7 9SKLql13Bzv0DKSMAUfhjbyjQ/jN9DSMLzFNUT4k1AYoN6rxcHEpGvGq+dvBI1ka uDuuO0gMOofsQYHbCK3jxMpCpmPv2i5DUKmTr3JTQ4CL+4a/AiwmoGJjv3S39YFN OEe2B3b0rU/3rv04HSR70SNtzNd7hyrLnJu/f9FkaNTJbq+AIsz76uXHBhg2xfuo Niq6DaozXvJh9eg/0NgsxtXYgQk1XIUHrWgSdChq4n2NbTI/ZOJB1Jwsd8819OLy dKE4vIP+Ou3u8RqIP/pjf21REqqhezPtSavpLX6+36OyzaskmyG11w== =k7ul -----END PGP SIGNATURE-----

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SuSE Security Announcement: lprold
by Sebastian Krahmer 10 Oct '01

10 Oct '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: lprold Announcement-ID: SuSE-SA:2001:033 Date: Wed Oct 10 11:03:12 GMT 2001 Affected SuSE versions: [6.1, 6.2,] 6.3, 6.4, 7.0, 7.1, 7.2 Vulnerability Type: bufferoverflow/local privilege escalation Severity (1-10): 6 SuSE default package: yes Other affected systems: Other Linux distributions, *BSD Content of this advisory: 1) security vulnerability resolved: Several problems in lprold problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information ISS X-Force reported an overflow in BSD's lineprinter daemon shipped with the lprold package in SuSE Linux. Due to missing bounds checks in the lockfile processing function, internal buffers may overflow. Bounds checks have been added to fix that problem. Additionally the SuSE Security Team uncovered other security releated bugs in lpd while analyzing lpd source after receiving the X-Force advisory. These bugs allows users on machines listed in /etc/hosts.lpd or /etc/hosts.equiv to chown any file on the system running lpd to any user. In order to trigger any of the fixed bugs (including the overflow) the attackers machine must be listed in one of these two access-files and the attacker usually needs root on these machines due to the privileged-port requirement. Please download the packages and verify them as described in section 3. After successful authentication you can update your packages with the command `rpm -Uhv file.rpm'. As root invoke the command "/etc/rc.d/lpd stop" to shutdown the old lpd daemon and "/etc/rc.d/lpd start" afterwards to start the patched daemon. i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/lprold-3.0.48-272.i386.rpm 23b8251411a557563cb314102f405d31 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/lprold-3.0.48-272.src.rpm ff590e05f2a7c85e9d234bd32d12b13a SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/lprold-3.0.48-275.i386.rpm b6efc424262ec9aaa39ac84f230b3df2 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/lprold-3.0.48-275.src.rpm 5a95de121c7520bf33620dddbfdda611 SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/lprold-3.0.48-275.i386.rpm 10792a921880048970f40470f1b94330 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/lprold-3.0.48-275.src.rpm 094b06515dfd865c6dffedf70de5e6cc SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/lprold-3.0.48-275.i386.rpm da1b920d23694a807f91c74301b47ced source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/lprold-3.0.48-275.src.rpm c2c45f04a2d44e374689346f488e8c52 SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/lprold-3.0.48-275.i386.rpm 8f7c5538e878f197de1e6dacdb6a8479 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/lprold-3.0.48-275.src.rpm d13f74f6449ee40b98b2ed0e42e9d2ec Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n1/lprold-3.0.48-216.sparc.rpm 78a947db44bc4a41cb33eee1b931b99e source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/lprold-3.0.48-216.src.rpm 2c873632eaa6f01efb45cba3f1308cd3 SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/lprold-3.0.48-216.sparc.rpm 45320846ee6143fdfc27a7d578f630bd source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/lprold-3.0.48-216.src.rpm 1be6f31b6924f81fb965b0dce053f6cb AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/lprold-3.0.48-215.alpha.rpm 94af7565e8920cdce6e1e7c51f562fba source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/lprold-3.0.48-215.src.rpm 0757d322145ef6c2179c8e31b1169cd2 SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/lprold-3.0.48-215.alpha.rpm 3c6a2b2b21fcc1b94974aca6c5930e98 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/lprold-3.0.48-215.src.rpm 0222dec4d0287b9f1f267b86e8e8a4dd SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/lprold-3.0.48-215.alpha.rpm f4c618b43a95bd94ed679c1c2119a7aa source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/lprold-3.0.48-215.src.rpm 0430ec91e7515d79326ed16f492ea60e SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/lprold-3.0.48-215.alpha.rpm 68a8b9a26e17ed5183b8385be349c6a9 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/lprold-3.0.48-215.src.rpm 582d925d8328f79bc566dddcc62f763b Power PC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/lprold-3.0.48-200.ppc.rpm 3c16c1975b8f9dae3ccfb67dd5f462db source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/lprold-3.0.48-200.src.rpm 37b0d3534e39273e158eba42f75f8e31 SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/lprold-3.0.48-200.ppc.rpm d0e5a115d8991e711ef75fc8b06e1d97 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/lprold-3.0.48-200.src.rpm e4d589e9225365b103b502a26d0fd73f SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/lprold-3.0.48-200.ppc.rpm f8e7557f995388564f98e9bae4708e4e source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/lprold-3.0.48-200.src.rpm 78a647beeaf5a5541cb15aa6435ba65e ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - sftp/openssh: Our last announcement SuSE-SA:2001:032 about WindowMaker claimed that the openssh packages on SuSE distributions do not contain the sftp-server as described by Peter W <peterw(a)usa.net> on the bugtraq mailing list. This is wrong: The program is indeed included on all recent openssh packages of SuSE Linux distributions, starting with SuSE Linux 6.4 where the openssh package appeared first. We will provide fixes for the distributions 6.4 through 7.2 as soon as possible on our ftp server (ftp.suse.de for 6.4-7.0, ftp.suse.com for 7.1 and newer) and announce these fixes in the section 2) of an upcoming security announcement. Please note that this error has been corrected shortly before the release of the upcoming SuSE Linux 7.3 which will arrive in the stores by the end of this week. We apologize for this error (Roman Drahtmueller, SuSE Security). - squid Malformed requests on the client side can cause the squid proxy server to die, resulting in a denial of service attack that can be launched from the internal network if squid is used at the edge of an internal network to proxy requests to the internet. We are in the process of testing the update packages that are available on the ftp server shortly. SuSE Security will issue a dedicated announcement for this issue shortly. - devfs/kernel SuSE Linux ships the userspace utilities for the use of the devfs filesystem in the linux kernel, but neither the utilities nor the filesystem interface for device files itself have been used in SuSE Linux up to date. The decision to not actively use devfsd in the distribution framework is based on security considerations. For these reasons, SuSE products are not susceptible to the lately found security problems in the devfs implementation. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SuSE Security Announcement: wmaker/WindowMaker (SuSE-SA:2001:032)
by Thomas Biege 20 Sep '01

20 Sep '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: wmaker/WindowMaker Announcement-ID: SuSE-SA:2001:032 Date: Thursday, September 20th 2001 15:10 MEST Affected SuSE versions: (6.0, 6.1, 6.2,) 6.3, 6.4, 7.0, 7.1, 7.2 Vulnerability Type: remote privilege escalation Severity (1-10): 5 SuSE default package: no Other affected systems: all Unix systems running Window Maker < 0.65.1 Content of this advisory: 1) security vulnerability resolved: Window Maker problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The window manager Window Maker was found vulnerable to a buffer overflow due to improper bounds checking when setting the window title. An attacker can remotely exploit this buffer overflow by using malicious web page titles or terminal escape sequences to set a excessively long window title. This attack can lead to remote command execution with the privileges of the user running Window Maker. A temporary fix does not exist; we recommend to update your system with the new RPM from our FTP server. Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Uhv file.rpm" to apply the update. After installing the updated RPM - run /sbin/SuSEconfig (the central configuration utility in SuSE Linux distributions) - restart your window manager. If this is not possible for configura- tional reasons, restart your x-session. i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/xwm1/WindowMaker-0.64.0-82.i386… 0f5508e10089deecf34b51ab8c007bbf source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/WindowMaker-0.64.0-82.src.r… 6472b87eb8a841d5cefe4f0889f9b4e1 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/xwm1/WindowMaker-0.62.1-25.i386… 39c69fab92923eca0cf1f0e077232fef source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/WindowMaker-0.62.1-25.src.r… a8c32f85125bbe7bf041335100e447b8 SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/xwm1/wmaker-0.62.1-42.i386.rpm d825fa6cd78643e880bb89464594a464 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/wmaker-0.62.1-42.src.rpm bd6e55a9b16e836065f59b4dc824416f SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/xwm1/wmaker-0.61.1-59.i386.rpm 7de5a334c4fbbeb6ef3d79d197a585c1 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/wmaker-0.61.1-59.src.rpm 4471d22b705b8b24a1808729a32d1764 SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/xwm1/wmaker-0.61.1-59.i386.rpm 8c8453b37e7b69008be2be4929a62d80 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/wmaker-0.61.1-59.src.rpm 0c96f81234e787a48b8d2df4e698843a Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/xwm1/WindowMaker-0.62.1-17.spa… c19bc73ccc235bbd35d1e8953cfbabbb source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/WindowMaker-0.62.1-17.src.… e60425cb8ae38b16a3aac3fa23a6c54f SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/xwm1/wmaker-0.62.1-2.sparc.rpm 9f0a23eddb8b9dbfc07288871388ff34 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/wmaker-0.62.1-2.src.rpm a95d995b1ea164b8c93a9fc308f703d1 AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/xwm1/WindowMaker-0.62.1-23.alpha… 55cf56c7bea8fa3e9cf7ca2c90457249 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/WindowMaker-0.62.1-23.src.rpm 7b5bc50ad9e854dc2858a1b0a08385d5 SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/xwm1/wmaker-0.62.1-5.alpha.rpm 6e7e01c1a1ef1e2ac751638dd7e31d21 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/wmaker-0.62.1-5.src.rpm 2ee34d67aba5c06878623e3ca50f47d1 SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/xwm1/wmaker-0.61.1-57.alpha.rpm dcbfdaf729cb823046f3dc6e913fcf1b source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/wmaker-0.61.1-57.src.rpm 3d045c4fd65d2ce9b69a1890d71fd59a SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/xwm1/wmaker-0.61.1-57.alpha.rpm 6c17c78ef0fe2971b29fe1a2300c4fc3 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/wmaker-0.61.1-57.src.rpm f01b2923ebc6e4e6a52b75e8597cbe50 PPC PowerPC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/xwm1/WindowMaker-0.62.1-18.ppc.r… 00f099cc26983691641ed041441abfc2 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/WindowMaker-0.62.1-18.src.rpm 1941b4c46eeb3e4fe4a7e3a1c79ae8a5 SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/xwm1/wmaker-0.62.1-49.ppc.rpm f5ef503d073a7e9e34cf28e4eb56fbaa source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/wmaker-0.62.1-49.src.rpm 362468904bd119c44f2c2baa1312a116 SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/xwm1/wmaker-0.61.1-56.ppc.rpm 0408f29d40eebf5bbc84bdcf14a03c5f source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/wmaker-0.61.1-56.src.rpm 50c1a727aec53feb76f451854657b6c8 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - SuSE Linux distributions do not contain the sftp-server as described by Peter W <peterw(a)usa.net> (Message-ID: <20010918082406.M14947(a)usa.net>) on the bugtraq mailing list and are therefore not vulnerable to the problems found. - A new worm called "Nimda" has been reported in the wild. It attacks IIS webservers and uploads a file called "readme.eml" which is being downloaded by the client's browser. Some versions of the Internet Explorer even execute this file without the user's knowledge. A temporary workaround for sites that use a squid proxy to access the internet would be to add these three lines to the /etc/squid.conf file: # filter Nimda worm files: acl nimda urlpath_regex -i \.eml$ acl nimda urlpath_regex -i \.nws$ http_access deny nimda Do not forget to reload your squid server (/usr/sbin/rcsquid reload)! ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We advise against subscribing to lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GZkBogQ57vSBEQQAk/GN+ftr 7+DBlSoixDDpfRnUk+jApGEt8hCnrnjVnPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45 t4E0fKyLVzDerCRFB1swz/mNDxT26DLysdBV5fwNHTPhxa67goAZVrehQPqJEckk IpYriOaYcKpF3n5fQIZMEfMaHEElQhcXML8AoJVXDkJYh7vI8EUB8ZURNLZMEECN A/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6TepRdLZhaylwVF/iu7uIn62ZUL4//NTOC DY7V63qg4iba/fUbOsWtEnGaiE7mQuAlsSWvRspwRA9/g9rdVf3/JdLJrLmKBThe yG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQnJn2euqylHRubEQP/aL53NZK0kBdvrKgf f6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiY I2lTRYT4uMdHuwVC3b4DqAKmoy375FERwHkrMVyKBJslv8QtbAWw5A1CAUseaHo+ 91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1U0UgUGFja2FnZSBTaWduaW5nIEtleSA8 YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUCOe70gQUJA8JnAAQLCgMEAxUDAgMWAgEC F4AACgkQqE7a6JyACspfLACffAYA+NM8NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0 xY7WbKoXs1+72b2AiEYEEBECAAYFAjpwXlIACgkQnkDjEAAKq6TczgCgi+ddhWb7 +FWcfeE6WwPZccqAHowAnjjtRyGwHLQHr5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey 5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk/xGJJREt7V12iSafaRzGuH8xWvIz1bb+ VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6iJXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq 2pudfwljp52lYVM53jgPYEz0q/v3091nlZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU +lDQT2EC6VKaxeWK8pNt6UFDwICRDQxKnlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKN bWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc 9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelxufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr 6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7UVCiSfb9CV38dmeHdPCEEjDUWquFYEnvj 3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qTJzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBE VE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/ 9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiUXpRoFCdglMznbcAyCk9C2wqb2j/D1Z2B eSBaGCSFkR6pRLebnE17LWcu72Iy+r0z+JecbPiyDpDZj4apn7IC81aNFGi7fNIT sHODbwwjiwADBgf/YPvVdzkc8OC7ztacEWCanwylKvxCdKzTDA+DfES6WUYShyiV JvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/pdGy1aKtJZrAnFEsofpmOj8VoqyyFgp/y AGQBp12+mXek7SCZRhuqalDfEMRiWEJ6J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxx QqNQXL6Z3NSxS61p+5n6BseiDUI39xxkKTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwb sklszZt6xbU+R0SjFqTvjPWx6eHfqbmNC9WMDdTjGrXDDKXFp2aYlokfN6It9vsb VlGNlOwHt/JjGoPMxW6Xqj0FLA7/VewgCdXW64hMBBgRAgAMBQI57vSSBQkDwmcA AAoJEKhO2uicgArKSyIAmwUHf/vtKQfcmVg4asR7U6XQl0bAAJ4pO22B5U8UH6IY l2LBCXFqw5+5fA== =Jnnf - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3in Charset: noconv iQEVAwUBO6oaPXey5gA9JdPZAQEacAf9HZ7Xhi0Yxe+9Z6VfHoJN/6LpMa2yMo6d Oj891kR/i/UhsXy/u5ua1vNoWzR/TyZn8Jv0ctrDWsWQ7aJBguiQITscG5P8epeI +L5NebIwsWQBTCnWtu6H8Q1ivvPyGsObO3AE5i8gInzFsmLFmJYbg9MKi0c3fmHq enBTZ4+81PbJF2DVrpYfnO/9UG4nbgtuHM8+ypQ9d6LlZl3WMj/hOjzG+g+BRnyN 3uyNz8r/DtKyYq3xF7KNh+j8SQ4jdQuEvIaS52Nhq6UAAyCT29SpR8KM4CUFhuq4 szuJBVDlHlBu+xZ8U5iQCzZkxCrC+NPirKOh51iI3T0A0olVlr+gjw== =lRUF -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas(a)suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/contact/thomas.asc | pgp -fka" Key fingerprint = 51 AD B9 C7 34 FC F2 54 01 4A 1C D4 66 64 09 84

1 0

SuSE Security Announcement: apache-contrib (SuSE-SA:2001:31)
by Thomas Biege 11 Sep '01

11 Sep '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: apache-contrib Announcement-ID: SuSE-SA:2001:31 Date: Monday, September 10th 2001 12:30 MEST Affected SuSE versions: 7.1, 7.2 Vulnerability Type: authentication bypass Severity (1-10): 3 SuSE default package: no Other affected systems: yes Content of this advisory: 1) security vulnerability resolved: mod_auth_mysql problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The Apache module mod_auth_mysql 1.4,which is shipped since SuSE Linux 7.1, was found vulnerable to possible bypass authentication by MySQL command injection. An adversary could insert MySQL commands along with a password and these commands will be interpreted by MySQL while mod_auth_mysql is doing the password lookup in the database. A positive authentication could be returned. Note, that this bug has not yet been proven exploitable so far. A temporary fix does not exist; we recommend to update your system with the new RPM from our FTP server. Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Uhv file.rpm" to apply the update. After installing the updated RPM run - rcapache restart - SuSEconfig i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/apache-contrib-1.0.9-94.i386… 7c84f6c3f8aaf2b96a312fea4d36abce source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/apache-contrib-1.0.9-94.src… 56ad3d7f883a3e3eb5e96c5a92f7a2e2 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/apache-contrib-1.0.8-35.i386… cd7cedc70d56df239db8e4434344a46e source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/apache-contrib-1.0.8-35.src… 7a0ca55c351b81756a05dfcff4e062be Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n2/apache-contrib-1.0.8-22.spa… bdb772783eedc1fb235e2ff0af5517f7 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/apache-contrib-1.0.8-22.sr… a5b625c3b0820f4715aeee18d20a9306 AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/apache-contrib-1.0.8-23.alpha… 3958307564b855c81e556b4c7e01c105 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/apache-contrib-1.0.8-23.src.… 143386a82750af64aec0f615fc847ab2 PPC Power PC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/apache-contrib-1.0.8-22.ppc.r… 97e4ab067fc16b36ecdd5bc8915379ef source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/apache-contrib-1.0.8-22.src.… aa2f5914d8e00ef511081096a1c33671 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We advise against subscribing to lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GZkBogQ57vSBEQQAk/GN+ftr 7+DBlSoixDDpfRnUk+jApGEt8hCnrnjVnPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45 t4E0fKyLVzDerCRFB1swz/mNDxT26DLysdBV5fwNHTPhxa67goAZVrehQPqJEckk IpYriOaYcKpF3n5fQIZMEfMaHEElQhcXML8AoJVXDkJYh7vI8EUB8ZURNLZMEECN A/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6TepRdLZhaylwVF/iu7uIn62ZUL4//NTOC DY7V63qg4iba/fUbOsWtEnGaiE7mQuAlsSWvRspwRA9/g9rdVf3/JdLJrLmKBThe yG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQnJn2euqylHRubEQP/aL53NZK0kBdvrKgf f6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiY I2lTRYT4uMdHuwVC3b4DqAKmoy375FERwHkrMVyKBJslv8QtbAWw5A1CAUseaHo+ 91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1U0UgUGFja2FnZSBTaWduaW5nIEtleSA8 YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUCOe70gQUJA8JnAAQLCgMEAxUDAgMWAgEC F4AACgkQqE7a6JyACspfLACffAYA+NM8NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0 xY7WbKoXs1+72b2AiEYEEBECAAYFAjpwXlIACgkQnkDjEAAKq6TczgCgi+ddhWb7 +FWcfeE6WwPZccqAHowAnjjtRyGwHLQHr5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey 5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk/xGJJREt7V12iSafaRzGuH8xWvIz1bb+ VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6iJXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq 2pudfwljp52lYVM53jgPYEz0q/v3091nlZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU +lDQT2EC6VKaxeWK8pNt6UFDwICRDQxKnlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKN bWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc 9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelxufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr 6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7UVCiSfb9CV38dmeHdPCEEjDUWquFYEnvj 3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qTJzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBE VE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/ 9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiUXpRoFCdglMznbcAyCk9C2wqb2j/D1Z2B eSBaGCSFkR6pRLebnE17LWcu72Iy+r0z+JecbPiyDpDZj4apn7IC81aNFGi7fNIT sHODbwwjiwADBgf/YPvVdzkc8OC7ztacEWCanwylKvxCdKzTDA+DfES6WUYShyiV JvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/pdGy1aKtJZrAnFEsofpmOj8VoqyyFgp/y AGQBp12+mXek7SCZRhuqalDfEMRiWEJ6J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxx QqNQXL6Z3NSxS61p+5n6BseiDUI39xxkKTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwb sklszZt6xbU+R0SjFqTvjPWx6eHfqbmNC9WMDdTjGrXDDKXFp2aYlokfN6It9vsb VlGNlOwHt/JjGoPMxW6Xqj0FLA7/VewgCdXW64hMBBgRAgAMBQI57vSSBQkDwmcA AAoJEKhO2uicgArKSyIAmwUHf/vtKQfcmVg4asR7U6XQl0bAAJ4pO22B5U8UH6IY l2LBCXFqw5+5fA== =Jnnf - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3in Charset: noconv iQEVAwUBO5znyXey5gA9JdPZAQGEOQgAhl5wJwgsVz7fjcPP+fRM85AHW44/4Fgt RBbiEH7j3e8/k9eALFyBUxRZ5s8Nx7ouTyMHaypdqzacQT2LLsr2XKLIUgVPBRNg WJu/FuMfmJ2716SIhAto9hyShZO/KNjXPiW/V02EB1oLETaGzBZtGH4+lHIF4KQr 7vJ6FlRDPUpAZgRWgkCVP1gV1IhurqHCDUufclSPISJzaaP5P/v1JqEdAgrKykyk S2yAu8W/cNbenot8TV3GopfuGf/wlPkhUd8BloT2otLo6WkHlLLxd1FC3jm0CFHD SVYH2DPvX2AarnkH2yag7KFc0kZLwzQIYmliJ7purS3E63ZFtbTcdw== =tPMa -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas(a)suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/contact/thomas.asc | pgp -fka" Key fingerprint = 51 AD B9 C7 34 FC F2 54 01 4A 1C D4 66 64 09 84

1 0

SuSE Security Announcement: screen (SuSE-SA:2001:030)
by Roman Drahtmueller 05 Sep '01

05 Sep '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: screen Announcement-ID: SuSE-SA:2001:030 Date: Wednesday, September 5 2001 18:00 MEST Affected SuSE versions: (6.0, 6.1, 6.2) 6.3, 6.4, 7.0, 7.1, 7.2 Vulnerability Type: local root compromise Severity (1-10): 5 SuSE default package: yes Other affected systems: some systems with the screen program installed setuid root Content of this advisory: 1) security vulnerability resolved: screen problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information screen is a terminal multiplexer program that allows reattaching to a detached session as well as multi-attached (shared) sessions. The screen package allows a local attacker to obtain root privileges if the /usr/bin/screen command is installed setuid root and if a directory below /tmp/screens/ exists. The screen program needs root permissions from the setuid-root bit for two reasons: multi-attached sessions are only possible with root privileges, and writing terminal allocation information to /var/run/utmp (the who(1) and finger(1) commands). If the screen command is not running with special privileges, all functionality except these two features will continue to work, but the local root compromise will not be possible. In order to provide the features mentioned, the screen package used to be installed setuid-root in SuSE Linux distributions. The update packages that we provide for the supported distributions 6.3, 6.4, 7.0, 7.1 and 7.2 eliminate the error in the source code. In addition to that, the rpm package does not contain the setuid-bit on the screen program any more. If there is any more security-related bug in the screen package or libraries that it is linked against to be found in the future, these errors will not open local security holes any more. Users of the screen package who need the multi-attach feature must enable it again by adding the setuid-bit to the /usr/bin/screen file. Please note that you should reflect the changes to permissions in the files /etc/permissions*. If unsure, use the setting "secure local" for the variable PERMISSION_SECURITY in /etc/rc.config and execute "SuSEconfig" as root. Alternatively, change the settings for the screen program in /etc/permissions* and run "chkstat -set <file>" for each file that you need. Use the command "rpm -qlv screen | grep /usr/bin" to find out which files to add to the permissions file (/usr/bin/screen is a symlink). The authors of screen have released the new version screen-3.9.10 that fixes the multi-attach-error, and some other uncritical bug. Our update packages contain the necessary patches applied to the version as shipped with the original distribution. We thank Christian Hürgemann <Bzrker(a)t-online.de> for reporting this error on Monday, 3 Sep 2001. Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Uhv file.rpm" to apply the update. i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/ap1/screen-3.9.8-115.i386.rpm e85453f50170ecdabe97dd2b33b51e4a source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/screen-3.9.8-115.src.rpm 74ac0119ec42f7c5ad4405a7f1c00f6a SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/ap1/screen-3.9.8-115.i386.rpm fb0a3ba99db246c1f08e3814557858ae source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/screen-3.9.8-115.src.rpm 5edb0caa388be9f1ddc2cd4d0a4f3a54 SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/ap1/screen-3.9.8-115.i386.rpm b7bfa891b49db29093f6ab1830d84838 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/screen-3.9.8-115.src.rpm fb1e3bf070adec10296a59f2d1231c8c SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/ap1/screen-3.9.8-115.i386.rpm a889c9090b0a64eb57a407ee00444491 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/screen-3.9.8-115.src.rpm 29b6e24378153a4f9d2445414253759c SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/ap1/screen-3.9.8-115.i386.rpm 5a47bdc2407890d9a940c710d4806383 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/screen-3.9.8-115.src.rpm f3bace3114cfcb9b1b6e798ea8b93b34 Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/ap1/screen-3.9.8-61.sparc.rpm 3bfe4ac28d54ff2cab6582b2d09f3b75 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/screen-3.9.8-61.src.rpm 17da9f63ec2b0d48b3593dacfe341a7b SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/ap1/screen-3.9.8-62.sparc.rpm 13037ae193ebd81b92ce1d94d2409421 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/screen-3.9.8-62.src.rpm c542f1c51a701ad5dd06d9f9f3701cfb AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/ap1/screen-3.9.8-71.alpha.rpm c5239b5ca727a4f7d54589399b62a5c5 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/screen-3.9.8-71.src.rpm 4c389bca8641e3c081e992e82bc5065d SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/ap1/screen-3.9.8-71.alpha.rpm 9f84734233284fc9f7be494c37a4f857 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/screen-3.9.8-71.src.rpm 31920bb58b696739100e75ce363ade6d SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/ap1/screen-3.9.8-71.alpha.rpm a7f64468ecc5be193795ea3a530d3ead source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/screen-3.9.8-71.src.rpm dae933854ae9a7efd3e80e09641b9963 SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/ap1/screen-3.9.8-71.alpha.rpm f66d9c18a27cd7915d5134528b47c342 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/screen-3.9.8-71.src.rpm 13157d46457be72fd7684ca0cbe6c49b PPC Power PC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/ap1/screen-3.9.8-52.ppc.rpm 090e4781fb4949697fb08f755a0ae12d source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/screen-3.9.8-52.src.rpm ce19f08412c6517798690fa7d99ed690 SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/ap1/screen-3.9.8-52.ppc.rpm e37b478c4ce85febc13785b4a48c68c0 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/screen-3.9.8-52.src.rpm 0594837833e05e430c52421745f1abfa SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/ap1/screen-3.9.8-52.ppc.rpm 53cb3d0fdf964a4013b6aed326d77c9e source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/screen-3.9.8-52.src.rpm 89300f304c709a10975f5906bedd1529 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - sendmail SuSE Security announcement SuSE-SA:2001:028 (sendmail) offers a sendmail update package for the 7.0-i386 distribution that has a lower version number than the package in the tree for ftp installation on ftp.suse.com. If your update rpm command fails with a complaint that the version installed is newer than the one you wish to be installed, then please use the "--oldpackage" commandline option to rpm: "rpm --oldpackage -Uhv sendmail-*.rpm". We are correcting the problem as soon as possible. The new package will be named sendmail-8.11.0-10.i386.rpm and should appear on the ftp server within the next 11 hours. The *-10 package is technically identical to the *-5 package that is currently available on our ftp server. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CpkBogQ57vSBEQQAk/GN+ftr7+DBlSoixDDpfRnUk+jApGEt8hCnrnjV nPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45t4E0fKyLVzDerCRFB1swz/mNDxT26DLy sdBV5fwNHTPhxa67goAZVrehQPqJEckkIpYriOaYcKpF3n5fQIZMEfMaHEElQhcX ML8AoJVXDkJYh7vI8EUB8ZURNLZMEECNA/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6T epRdLZhaylwVF/iu7uIn62ZUL4//NTOCDY7V63qg4iba/fUbOsWtEnGaiE7mQuAl sSWvRspwRA9/g9rdVf3/JdLJrLmKBTheyG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQn Jn2euqylHRubEQP/aL53NZK0kBdvrKgff6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+ mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiYI2lTRYT4uMdHuwVC3b4DqAKmoy375FER wHkrMVyKBJslv8QtbAWw5A1CAUseaHo+91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1 U0UgUGFja2FnZSBTaWduaW5nIEtleSA8YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUC Oe70gQUJA8JnAAQLCgMEAxUDAgMWAgECF4AACgkQqE7a6JyACspfLACffAYA+NM8 NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0xY7WbKoXs1+72b2AiEYEEBECAAYFAjpw XlIACgkQnkDjEAAKq6TczgCgi+ddhWb7+FWcfeE6WwPZccqAHowAnjjtRyGwHLQH r5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk /xGJJREt7V12iSafaRzGuH8xWvIz1bb+VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6i JXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq2pudfwljp52lYVM53jgPYEz0q/v3091n lZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU+lDQT2EC6VKaxeWK8pNt6UFDwICRDQxK nlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKNbWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852 Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelx ufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7U VCiSfb9CV38dmeHdPCEEjDUWquFYEnvj3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qT Jzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBEVE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN 89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiU XpRoFCdglMznbcAyCk9C2wqb2j/D1Z2BeSBaGCSFkR6pRLebnE17LWcu72Iy+r0z +JecbPiyDpDZj4apn7IC81aNFGi7fNITsHODbwwjiwADBgf/YPvVdzkc8OC7ztac EWCanwylKvxCdKzTDA+DfES6WUYShyiVJvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/p dGy1aKtJZrAnFEsofpmOj8VoqyyFgp/yAGQBp12+mXek7SCZRhuqalDfEMRiWEJ6 J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxxQqNQXL6Z3NSxS61p+5n6BseiDUI39xxk KTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwbsklszZt6xbU+R0SjFqTvjPWx6eHfqbmN C9WMDdTjGrXDDKXFp2aYlokfN6It9vsbVlGNlOwHt/JjGoPMxW6Xqj0FLA7/Vewg CdXW64hMBBgRAgAMBQI57vSSBQkDwmcAAAoJEKhO2uicgArKSyIAmwUHf/vtKQfc mVg4asR7U6XQl0bAAJ4pO22B5U8UH6IYl2LBCXFqw5+5fA== =rVRn - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBO5ZTFHey5gA9JdPZAQHosAf/drLZSUCL8y3JyAd9EfzXg4OctE245mjb HrAn+jgXNDHvL8SzQYFpIzt5hLiJ9WLXc0+Edu3ovKkhzCJOtWIXTu2dvOiRhF99 MO3iaqWF3J+HhGMOEr2sQWsiqVKF5Mdw13SPgiwTX3le9ropXAD8gvZCoG7WjCpb nqIbbVlY2zrxdCuoDVeLrH3FJS1TksUcga/+pdJqaPG1YgdV+UFMFbTnpEITXyNT s9vB553vw9paFf9a4LGwoht3BpwtvnPRTjQlfgApJPvMbFjTGers824cT5xOjpPz pafJ3QG9ZbiD+49yY4wXMsmBNdohGM4CFsmV5Sc8aOXFenA26Kbg4Q== =tYiI -----END PGP SIGNATURE-----

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SuSE Security Announcement: nkitb/nkitserv/telnetd
by Sebastian Krahmer 03 Sep '01

03 Sep '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: nkitb/nkitserv/telnetd Announcement-ID: SuSE-SA:2001:029 Date: Mon Sep 3 12:55:58 MEST 2001 Affected SuSE versions: [6.1, 6.2,] 6.3, 6.4, 7.0, 7.1, 7.2 Vulnerability Type: remote code execution Severity (1-10): 8 SuSE default package: yes Other affected systems: All UN*X Systems shipping BSD derived telnetd Content of this advisory: 1) security vulnerability resolved: Buffer overflow in in.telnetd problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The telnet server which is shipped with SuSE distributions contains a remotely exploitable buffer-overflow within its telnet option negotiation code. This bug is wide-spread on UN*X systems and affects almost all implementations of telnet daemons available. SuSE 7.2 distribution ships the telnet-server package which contains the vulnerable telnet daemon. This package has been fixed. The SuSE Linux distributions 6.3 and 6.4 contain versions and implementations of the telnet-daemon that are vulnerable, but the complexity of the code requires a full source code audit of the software. In order not to further delay the release of the packages for the SuSE Linux 7.x distributions, we recommend to disable the telnet daemon on the 6.x distributions. This can be done by commenting out the line in /etc/inetd.conf that starts with "telnet", and then reloading the inetd configuration using the command "killall -1 inetd". Another option is to not start the inetd in the first place if you do not need any of the services provided by the inetd daemon. Disabling inetd permanently involves killing the running inetd process ("killall -TERM inetd") and setting the variable START_INETD in /etc/rc.config to "no" (as opposed to "yes"). Disabling the telnet service is the preliminary solution/workaround against the problems with the telnetd daemon. We hope to be able to provide a better solution. The SuSE Linux distributions 7.0, 7.1 and 7.2 have similar implementations of in.telnetd, and for all of these distributions there are update packages available. Please note that the package that contains the /usr/sbin/in.telnetd program (the server program) has changed over the different releases of the SuSE Linux distribution. In the 7.0 and 7.1 distributions the package is called "nkitserv". The 7.2 distribution lists the telnet server in the package "telnet-server". Please download the packages and verify them as described in section 3. After successfull authentication you can update your packages with the command `rpm -Uhv file.rpm'. Further action should not be necessary to activate the update since the in.telnetd daemon is started from a new by inetd upon every accepted connection from the network. Regardless of the availiability of fixed packages of the telnet-daemon, SuSE Security strongly recommend to disable the telnet service if you do not use it. In addition to that, only cryptographically protected protocols such as secure shell (ssh, package openssh) can be an efficient countermeasure against sniffing and spoofing type attacks. Due to significantly more comfort (such as X11-forwarding, multiple authentication methods, ...), the transition to ssh should be worth the effort in any case. i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/telnet-server-1.0-69.i386.rpm 0adc05af9762bd4c63eee464ca3131d1 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/telnet-1.0-69.src.rpm fe313553d1a6f022c7eb2f87ccd6772f SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/nkitserv-2001.8.14-0.i386.rpm e0636eec04ccf2129b0e2ea0ee40c231 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/nkitb-2001.8.14-0.src.rpm 57760fcd8e064e89591203f7ba9adefc SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/nkitserv-2001.8.16-0.i386.rpm e8a859d5a648a572fc08628247c1e2d6 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/nkitb-2001.8.16-0.src.rpm 33d4abc52926ac957f21b8c8aae7adce Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n1/nkitserv-2001.8.14-0.sparc.… 3ef64d1cae35be51c9eff9bebcf4cf79 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/nkitb-2001.8.14-0.src.rpm 4cb76a16bd2f53c37a7cee728ea21c81 SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/nkitserv-2001.8.16-0.sparc.… f4901a4a271657d0379aff114d30b912 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/nkitb-2001.8.16-0.src.rpm ad909d8e3d2d0a617a5a9f6e3d7cd74d AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/nkitserv-2001.8.14-0.alpha.rpm efad3412a8d333947bcf74695c023ea8 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/nkitb-2001.8.14-0.src.rpm 94d0dba0396e41b4afbd3ef61c4fd8aa SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/nkitserv-2001.8.16-0.alpha.rpm 934525486e72a5cc98736f4cb1217f93 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/nkitb-2001.8.16-0.src.rpm a6623ff6d9439dea40f24ff35acefe99 Power PC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/nkitserv-2001.8.14-0.ppc.rpm 4da51d1a38095e81ee389094b0f21160 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/nkitb-2001.8.14-0.src.rpm 499b282f614835fe7a7b1a9ab039c56d SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/nkitserv-2001.8.16-0.ppc.rpm 262f3fc3653042976c8cc36a2cd7e44d source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/nkitb-2001.8.16-0.src.rpm 7cba8393bb8a71cf4d39fb480a71b42e ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - w3m The w3m browser contains a buffer-overflow which allows remote-attackers to execute arbitrary code or to crash the w3m web-client when viewing special crafted sites. Please update to the newest w3m packages available on the ftp-server. - dip The dip program is executable as setuid root program for users in the "dialout" group, a privilege that has been issued by the administrator for a trusted user group. This bug will be corrected in future releases of the SuSE Linux distribution. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GZkBogQ57vSBEQQAk/GN+ftr 7+DBlSoixDDpfRnUk+jApGEt8hCnrnjVnPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45 t4E0fKyLVzDerCRFB1swz/mNDxT26DLysdBV5fwNHTPhxa67goAZVrehQPqJEckk IpYriOaYcKpF3n5fQIZMEfMaHEElQhcXML8AoJVXDkJYh7vI8EUB8ZURNLZMEECN A/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6TepRdLZhaylwVF/iu7uIn62ZUL4//NTOC DY7V63qg4iba/fUbOsWtEnGaiE7mQuAlsSWvRspwRA9/g9rdVf3/JdLJrLmKBThe yG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQnJn2euqylHRubEQP/aL53NZK0kBdvrKgf f6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiY I2lTRYT4uMdHuwVC3b4DqAKmoy375FERwHkrMVyKBJslv8QtbAWw5A1CAUseaHo+ 91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1U0UgUGFja2FnZSBTaWduaW5nIEtleSA8 YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUCOe70gQUJA8JnAAQLCgMEAxUDAgMWAgEC F4AACgkQqE7a6JyACspfLACffAYA+NM8NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0 xY7WbKoXs1+72b2AiEYEEBECAAYFAjpwXlIACgkQnkDjEAAKq6TczgCgi+ddhWb7 +FWcfeE6WwPZccqAHowAnjjtRyGwHLQHr5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey 5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk/xGJJREt7V12iSafaRzGuH8xWvIz1bb+ VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6iJXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq 2pudfwljp52lYVM53jgPYEz0q/v3091nlZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU +lDQT2EC6VKaxeWK8pNt6UFDwICRDQxKnlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKN bWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc 9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelxufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr 6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7UVCiSfb9CV38dmeHdPCEEjDUWquFYEnvj 3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qTJzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBE VE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/ 9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiUXpRoFCdglMznbcAyCk9C2wqb2j/D1Z2B eSBaGCSFkR6pRLebnE17LWcu72Iy+r0z+JecbPiyDpDZj4apn7IC81aNFGi7fNIT sHODbwwjiwADBgf/YPvVdzkc8OC7ztacEWCanwylKvxCdKzTDA+DfES6WUYShyiV JvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/pdGy1aKtJZrAnFEsofpmOj8VoqyyFgp/y AGQBp12+mXek7SCZRhuqalDfEMRiWEJ6J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxx QqNQXL6Z3NSxS61p+5n6BseiDUI39xxkKTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwb sklszZt6xbU+R0SjFqTvjPWx6eHfqbmNC9WMDdTjGrXDDKXFp2aYlokfN6It9vsb VlGNlOwHt/JjGoPMxW6Xqj0FLA7/VewgCdXW64hMBBgRAgAMBQI57vSSBQkDwmcA AAoJEKhO2uicgArKSyIAmwUHf/vtKQfcmVg4asR7U6XQl0bAAJ4pO22B5U8UH6IY l2LBCXFqw5+5fA== =Jnnf - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBO5N83Xey5gA9JdPZAQGL3wf/Y9JWafwyYG1XUd5Li95aLdQ4zGDn2DbO o4iJonbvJd5ASsm0bkLIYCfoylkQh/Tc1VxXberIwUSf3NnJ/65kU+Lzn4jvTpMB PZm2QnK9VXukXbvibgamrbiDfSlySfoPD/jJWzTUnugJwZhLDIx3ZL0T9pHvUWOz i4VoK2o70z0dzKKb1YGRZQIaBCZHLm17yWMavEXewHCFJNMYfGT7s/ZajA7FFMXS gFzm7cE+RnykKeMG2Vf53/igoDFrHCiPr8wXEbJu5mbANH9MmGKIpQYdROwKodyk gAFUjXko2fdtkG5HFhlQWXvrHH/ZmZXzWWbp5g5DQ+Uqr3jW6t328A== =AmuR -----END PGP SIGNATURE----- -- ~ ~ perl self.pl ~ $_='print"\$_=\47$_\47;eval"';eval ~ krahmer(a)suse.de - SuSE Security Team ~

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SuSE Security Announcement: sendmail (SuSE-SA:2001:028)
by Roman Drahtmueller 23 Aug '01

23 Aug '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: sendmail Announcement-ID: SuSE-SA:2001:028 Date: Thursday, Aug 23rd 2001 18:10 MEST Affected SuSE versions: 7.0, 7.1, 7.2 Vulnerability Type: local root compromise Severity (1-10): 5 SuSE default package: yes Other affected systems: systems using the sendmail package Content of this advisory: 1) security vulnerability resolved: sendmail problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Cade Cairns of Securityfocus discovered a vulnerability in the sendmail program, the widely spread MTA used in Unix- and Unix-like systems. A local user can write arbitrary data to the process memory, resulting in user-controlled code to be executed as user root. Please note that this is a _local_ vulnerability: Local shell access is needed for the attacker to be able to take advantage of this error. The /usr/sbin/sendmail program is installed set-uid root in most installations. This special privilege is needed for the sendmail program to operate properly. The attack pattern involves running sendmail to make use of the setuid-bit. Please note that this is the first sendmail security problem since 1997. In this case, the vulnerability can be classified as a commandline processing bug while running with extended (root) privilege. The error itself is a result of a comparison between a signed and an unsigned integer when checking user-supplied data from the sendmail command line: A high unsigned value is being considered a negative signed value. A subsequent comparison is being evaluated the wrong way. These errors are expected to make up a new class of vulnerabilities for programs written in C in the near future. The supported SuSE Linux distributions 6.3 and 6.4 use a sendmail of version 8.9.3. According to Sendmail Inc., this version is not affected by this signedness bug. The SuSE Linux distributions 7.0, 7.1 and 7.2 use sendmail version 8.11.x. All 7.x distributions are affected by the problem. SuSE provides update packages for the affected distributions. Please download the update package for your distribution and use the command 'rpm -Uhv file.rpm' to apply the update. It is recommended to stop the running sendmail process(es) before applying the update. Use the command 'rcsendmail stop' to do this, and 'rcsendmail start' to restart the service after the update has been applied. Since the update packages only fix the security problem from this announcement, no reconfiguration should be necessary. SPECIAL INSTALL INSTRUCTIONS: The sendmail package needs one out of two commands to be executed after package installation. Use the commands SuSEconfig or, alternatively (if you have disabled SuSEconfig in /etc/rc.config), chkstat -set /etc/permissions.d/sendmail to set the permissions of the sendmail package files correctly. Without these permission changes, the /usr/sbin/sendmail program will not operate properly. (Side note: All of the commands above have to be run as root!) i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/sendmail-8.11.3-68.i386.rpm edffc3231b74858c218e540ffb37740a SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/sec2/sendmail-tls-8.11.3-72.i38… 6a99faaaf394ab7b6dd22d9d81fb221b source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/sendmail-8.11.3-68.src.rpm e914fef1f5fb1c65bb7b52383f9832db SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/sendmail-8.11.2-34.i386.rpm 6cf817fe71a07fc58d4b201df01291b5 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/sec2/sendmail-tls-8.11.2-29.i38… d96f3e373f7c628d5792a2567e02e4c3 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/sendmail-8.11.2-34.src.rpm 35c53244eafc645d4d9218d95c4f6d71 SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/sendmail-8.11.0-5.i386.rpm 29250e9986dfd22c7bdf637ac5dcc646 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/sendmail-8.11.0-5.src.rpm 13153a10c4223450119d2bd57178b8d4 Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n1/sendmail-8.11.2-17.sparc.rpm 08b83155a16e86bf0b41596b66115443 SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/sec2/sendmail-tls-8.11.2-16.sp… 3d0b567682df307f13e552b4f85b798b source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/sendmail-8.11.2-17.src.rpm a67beda92d8cbae62e8d69b263970108 SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/sendmail-8.11.0-3.sparc.rpm 17c9c5ce0814ee9821d7646d7ea399de source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/sendmail-8.11.0-3.src.rpm d737219fb680f990d52faff49d53a48f AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/sendmail-8.11.2-19.alpha.rpm 6b7729f0c2b5dde8abb55102310bc039 SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/sec2/sendmail-tls-8.11.2-21.alph… c49dd3298689e2247a5228dfb3022949 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/sendmail-8.11.2-19.src.rpm bfa6c0c95baa236cebcf501e4efdb0e9 PPC Power PC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/sendmail-8.11.2-23.ppc.rpm 1ad2a5891a03cffd33baab76d0aed4f9 SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/sec2/sendmail-tls-8.11.2-21.ppc.… b1181efdc649f005bc4a2b3fce08d164 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/sendmail-8.11.2-23.src.rpm 4caafc40ff5332dab46cc60e3f2a85fb SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/sendmail-8.11.0-33.ppc.rpm 27d5ac4d6d809a1ae88cf6a3fefe1d64 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/sendmail-8.11.0-33.src.rpm f6600b2aac4d3f8356494a3d047c72f9 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions, Workarounds and misc: - ftp server Our ftp server ftp.suse.com has been reorganized. The changes in particular are: * The discontinued distributions (SuSE Linux before (and including) 6.2) have moved to an own tree: /pub/suse/discontinued/<arch>. The tree there is built exactly like the tree for the currently supported distributions (6.3 and up). This change has been made to keep users from automatically applying updates against old problems that have been superceded by newer updates which are not available for the discontinued distributions. * The /pub/suse/<arch>/{KDE,KDE2,GNOME,X} directories have been moved to an own tree: /pub/suse/<arch>/supplementary/. The KDE directory has become famous in the KDE scene because it contains the latest KDE packages compiled for a SuSE distribution. This has been done to point out that the packages in this directory have been built for the respective distribution, they are tested ok, but since these packages have never been part of the distribution they are built for, there is no support for them; the packages are provided as-is. * During the next days, all packages under the /pub/suse/<arch>/update/ tree will be gpg-signed with the build(a)suse.de DSA key (see section 3 of this announcement). Currently, most of the formerly existing directories that have been moved are now still visible through a symlink, pointing at a directory with a README. The directory paths to the update packages for the supported distributions have _not_ changed. We kindly request mirror admins to adopt the changes to their trees. If you run a publically accessible mirror of ftp.suse.com, you are invited to send a mail to ftpadmin(a)suse.com so that you are being notified of such changes in advance. - in.telnetd A buffer overflow vulnerability has been found in the in.telnetd telned daemon, a service that is enabled by default in all SuSE Linux distributions. The vulnerability may allow a remote attacker to gain root access to your system. Many unix- and unix-like operating systems are affected by this or a similar problem. There are update packages for the SuSE Linux distributions 7.1 and 7.2 on our ftp server. The packages for the 7.1 distribution are called "nkitserv", for the 7.2 distributions, the name is telnet-server. For completeness, we also provide the other packages that are made from the same source rpm. Since these packages do not fix a security problem, there is no reason to list them here. We are working on a suitable solution for the 7.0 and 6.x distributions, while it has turned out that a fix for these distributions is non-trivial because a different code base has been used for these packages. telnet is an unencrypted protocol that offers many attack possibilities. If at all possible, please deactivate your telnetd by commenting it out in /etc/inetd.conf (killall -HUP inetd afterwards to make inetd reload its configuration file!). We recommend to use one of the two ssh implementations on our distributions as a substitute of the telnet protocol. Clients are available on the internet for most platforms and operating systems. An announcement will be released soon that addresses the problem in in.telnetd. - Yesterday (Wednesday, 20010822) Bob Vickers (Dept of Computer Science, University of London) reported a locally exploitable security hole in the script /etc/init.d/boot. The critical function of the script is supposed to remove files from the defined temporary directories of the system as specified in /etc/rc.config (TMP_DIRS_TO_CLEAR in /etc/rc.config) if $CLEAR_TMP_DIRS_AT_BOOTUP (also from /etc/rc.config) is set to "yes". Unfortunately, the script does not take into account that directories can contain newlines and other non-standard characters. By consequence, the script can be tricked to removing files elsewhere. This bug is present in the SuSE Linux 7.2 version only, available for the Intel i386 platform. The feature responsible for this bug is disabled by default in a SuSE Linux 7.2 installation and must be manually activated for the bug to impose any risk. We have fixed the problem in an update package that is available at ftp://ftp.suse.com/pub/suse/i386/update/7.2/a1/aaa_base-2001.8.23-0.i386.rpm Please download and install the update package using the command rpm -Uhv aaa_base-2001.8.23-0.i386.rpm Disregard the messages on standard output if you have the gpg package installed: The postinstall script adds the DSA key build(a)suse.de to root's gpg public keyring if this hasn't been done already. This key is also listed below. A source rpm is also available at the usual location. We will not issue a dedicated security announcement for this problem. We thank Bob Vickers for reporting the problem to security(a)suse.de. - openssl A weakness was found in the PRNG (Pseudo Random Number Generator) of the openssl package. As far as we could determine, the bug has no effect on the packages that are compiled against a library from the openssl package. We will however provide update packages that fix the found problems. Since openssl packages are not (backwards-) compatible to any other newer version, we have to fix the package for each distribution seperately. This takes some time. A special announce- ment will be issued as soon as all packages are available. - more announcements are in our queue. Please keep watching activity on the suse-security-announce(a)suse.com mailinglist (more information below). ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CpkBogQ57vSBEQQAk/GN+ftr7+DBlSoixDDpfRnUk+jApGEt8hCnrnjV nPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45t4E0fKyLVzDerCRFB1swz/mNDxT26DLy sdBV5fwNHTPhxa67goAZVrehQPqJEckkIpYriOaYcKpF3n5fQIZMEfMaHEElQhcX ML8AoJVXDkJYh7vI8EUB8ZURNLZMEECNA/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6T epRdLZhaylwVF/iu7uIn62ZUL4//NTOCDY7V63qg4iba/fUbOsWtEnGaiE7mQuAl sSWvRspwRA9/g9rdVf3/JdLJrLmKBTheyG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQn Jn2euqylHRubEQP/aL53NZK0kBdvrKgff6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+ mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiYI2lTRYT4uMdHuwVC3b4DqAKmoy375FER wHkrMVyKBJslv8QtbAWw5A1CAUseaHo+91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1 U0UgUGFja2FnZSBTaWduaW5nIEtleSA8YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUC Oe70gQUJA8JnAAQLCgMEAxUDAgMWAgECF4AACgkQqE7a6JyACspfLACffAYA+NM8 NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0xY7WbKoXs1+72b2AiEYEEBECAAYFAjpw XlIACgkQnkDjEAAKq6TczgCgi+ddhWb7+FWcfeE6WwPZccqAHowAnjjtRyGwHLQH r5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk /xGJJREt7V12iSafaRzGuH8xWvIz1bb+VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6i JXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq2pudfwljp52lYVM53jgPYEz0q/v3091n lZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU+lDQT2EC6VKaxeWK8pNt6UFDwICRDQxK nlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKNbWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852 Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelx ufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7U VCiSfb9CV38dmeHdPCEEjDUWquFYEnvj3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qT Jzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBEVE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN 89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiU XpRoFCdglMznbcAyCk9C2wqb2j/D1Z2BeSBaGCSFkR6pRLebnE17LWcu72Iy+r0z +JecbPiyDpDZj4apn7IC81aNFGi7fNITsHODbwwjiwADBgf/YPvVdzkc8OC7ztac EWCanwylKvxCdKzTDA+DfES6WUYShyiVJvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/p dGy1aKtJZrAnFEsofpmOj8VoqyyFgp/yAGQBp12+mXek7SCZRhuqalDfEMRiWEJ6 J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxxQqNQXL6Z3NSxS61p+5n6BseiDUI39xxk KTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwbsklszZt6xbU+R0SjFqTvjPWx6eHfqbmN C9WMDdTjGrXDDKXFp2aYlokfN6It9vsbVlGNlOwHt/JjGoPMxW6Xqj0FLA7/Vewg CdXW64hMBBgRAgAMBQI57vSSBQkDwmcAAAoJEKhO2uicgArKSyIAmwUHf/vtKQfc mVg4asR7U6XQl0bAAJ4pO22B5U8UH6IYl2LBCXFqw5+5fA== =rVRn - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBO4UweHey5gA9JdPZAQFOCggAkb73lBI9/BOSbTjW+UBinTEEOGAtyATF 1aQVbrr2C4GnFX2KjDmUloXRDCVQM6n43Vg3M4l9DREh8L2rH2krMkcmDj7AFcIG lGgZ2QN4+lp/SKX0tm9I686JBbapkNThRoygRlB8kOARvGBwCCvUuPLHV4IWAORH Ik8or3bzS7ZgwZdjxz9srcvx4Ls3j5KbRVekTDrt390VLJNt4GBrui1u22DQROGs 7mF8C3KjmzwPsrTKGoe/dqh85MJnmjoif8jnAi08rfa6TsLD8PKgTBppRPXtrhQk LWNOH7cE5iijl73zdyvkb3i/3mMUsZgNuot+5wTXUurlpM9qE3Gk4g== =/4Er -----END PGP SIGNATURE-----

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SuSE Security Announcement: adb (SuSE-SA:2001:027)
by Thomas Biege 20 Aug '01

20 Aug '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: sdb Announcement-ID: SuSE-SA:2001:027 Date: Monday, August 20th 2001 10:00 MEST Affected SuSE versions: [6.0, 6.1, 6.2,] 6.3, 6.4, 7.0, 7.1, 7.2 Vulnerability Type: local (maybe remote) privilege escalation Severity (1-10): 4 SuSE default package: yes Other affected systems: no Content of this advisory: 1) security vulnerability resolved: sdbsearch.cgi problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Sdbsearch.cgi is Perl script which is part of the sdb package of SuSE Linux was found vulnerable by using untrustworthy client input (HTTP_REFERER). By exploiting this trust an attacker could force the sdbsearch.cgi script to open a malicious keylist file which includes keywords and filenames. By replacing the filename in the keylist file with the Perl pipe followed by arbitrary shell commands the sdbsearch.cgi would execute these commands when trying to open these 'filenames'. Note, that the attacker needs local access to the machine to store the keylist file on the server running sdbsearch.cgi. Misconfigured ftp accounts, trojan tar balls or RPM files could also be used. Sdbsearch.cgi on SuSE Linux 7.1 and 7.2 is not exploitable, because Perl's taint mode is used, nevertheless the HTTP_REFERER variable is still unfiltered and fully trusted. So, users of SuSE Linux 7.1 and 7.2 are not in danger but should update to avoid future attacks. Please update your machines with the new RPMs from our ftp server. i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/doc1/sdb-2001.5.15-6.noarch.rpm 4230c06f2e703753e79ee0e50339567b source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/sdb-2001.5.15-6.src.rpm 7090b18b0f5eeb3a4459134eda2b05ee SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/doc1/sdb-2001.1.18-2.noarch.rpm 5db3cb4341829769eea4d1f9c7466800 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/sdb-2001.1.18-2.src.rpm 97898cb2e0cd184b01dd8e6309ab166b SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/doc1/sdb-2000.7.14-3.noarch.rpm f12bc106ec92359c7c382ef1e103656f source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/sdb-2000.7.14-3.src.rpm 4c9034a7376f8cf2e554f7d41e57b984 SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/doc1/sdb-2000.3.13-1.noarch.rpm 0627c5db673924c7f7a5526b3fc56f0d source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/sdb-2000.3.13-1.src.rpm d71b0df1e08745f15b8d95d66718e2b4 SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/doc1/sdb-99.11.8-10.noarch.rpm 9917fe4a3735dfb568a60af8c919c26f source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/sdb-99.11.8-10.src.rpm 3c0d5d7fe8b5720350b501deca82beca Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/doc1/sdb-2001.1.18-0.noarch.rpm f33dd4b47cdb20eaec420353a570da41 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/sdb-2001.1.18-0.src.rpm a2b3a11161c24decfa7e52ccf668d613 SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/doc1/sdb-2000.7.14-0.noarch.rpm ee8010587e5a6424fd4c83d2dbf0d3ef source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/sdb-2000.7.14-0.src.rpm 0a2af53aa95673e3f3ee45195f09b4dc AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/doc1/sdb-2001.1.18-0.noarch.rpm b9329d16642aaa28b3560db19c40ca29 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/sdb-2001.1.18-0.src.rpm 27df8d88110edb5f9c2476e0f5da2eb0 SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/doc1/sdb-2000.7.14-0.noarch.rpm 0cbca12b0256424db89d8c0d6d860c7a source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/sdb-2000.7.14-0.src.rpm 9ff9e6d196f90309c752e0a9308ded56 SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/doc1/sdb-2000.3.13-0.noarch.rpm 1dc3c27aabadcf64556412e7e388b2d7 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/sdb-2000.3.13-0.src.rpm 300beb396532ea3ad9b390de90be1cd6 SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/doc1/sdb-99.11.8-2.noarch.rpm ab236bf7c71b3081eac9f1897fe3d135 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/sdb-99.11.8-2.src.rpm 07ddf02d2c245bfc6f66e81a25ee99a4 PPC PowerPC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/doc1/sdb-2001.1.18-0.noarch.rpm aa2e8090238df36f982d9829257bdb7c source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/sdb-2001.1.18-0.src.rpm 54baed3e4631595f61111b71b7245785 SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/doc1/sdb-2000.7.14-0.noarch.rpm 75d51a9cc5ee4ea0dd0a20bceba17383 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/sdb-2000.7.14-0.src.rpm 2bded9520b27c41a9df74b3a41d73daf SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/doc1/sdb-2000.3.13-0.noarch.rpm 009dcfd705d5528f21b81c2befaa8187 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/sdb-2000.3.13-0.src.rpm 029868fdc7d369515f0fb8d5b6be2532 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: Please watch out for more announcements that are currently in our queue. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We advise against subscribing to lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GZkBogQ57vSBEQQAk/GN+ftr 7+DBlSoixDDpfRnUk+jApGEt8hCnrnjVnPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45 t4E0fKyLVzDerCRFB1swz/mNDxT26DLysdBV5fwNHTPhxa67goAZVrehQPqJEckk IpYriOaYcKpF3n5fQIZMEfMaHEElQhcXML8AoJVXDkJYh7vI8EUB8ZURNLZMEECN A/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6TepRdLZhaylwVF/iu7uIn62ZUL4//NTOC DY7V63qg4iba/fUbOsWtEnGaiE7mQuAlsSWvRspwRA9/g9rdVf3/JdLJrLmKBThe yG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQnJn2euqylHRubEQP/aL53NZK0kBdvrKgf f6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiY I2lTRYT4uMdHuwVC3b4DqAKmoy375FERwHkrMVyKBJslv8QtbAWw5A1CAUseaHo+ 91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1U0UgUGFja2FnZSBTaWduaW5nIEtleSA8 YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUCOe70gQUJA8JnAAQLCgMEAxUDAgMWAgEC F4AACgkQqE7a6JyACspfLACffAYA+NM8NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0 xY7WbKoXs1+72b2AiEYEEBECAAYFAjpwXlIACgkQnkDjEAAKq6TczgCgi+ddhWb7 +FWcfeE6WwPZccqAHowAnjjtRyGwHLQHr5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey 5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk/xGJJREt7V12iSafaRzGuH8xWvIz1bb+ VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6iJXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq 2pudfwljp52lYVM53jgPYEz0q/v3091nlZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU +lDQT2EC6VKaxeWK8pNt6UFDwICRDQxKnlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKN bWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc 9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelxufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr 6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7UVCiSfb9CV38dmeHdPCEEjDUWquFYEnvj 3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qTJzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBE VE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/ 9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiUXpRoFCdglMznbcAyCk9C2wqb2j/D1Z2B eSBaGCSFkR6pRLebnE17LWcu72Iy+r0z+JecbPiyDpDZj4apn7IC81aNFGi7fNIT sHODbwwjiwADBgf/YPvVdzkc8OC7ztacEWCanwylKvxCdKzTDA+DfES6WUYShyiV JvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/pdGy1aKtJZrAnFEsofpmOj8VoqyyFgp/y AGQBp12+mXek7SCZRhuqalDfEMRiWEJ6J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxx QqNQXL6Z3NSxS61p+5n6BseiDUI39xxkKTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwb sklszZt6xbU+R0SjFqTvjPWx6eHfqbmNC9WMDdTjGrXDDKXFp2aYlokfN6It9vsb VlGNlOwHt/JjGoPMxW6Xqj0FLA7/VewgCdXW64hMBBgRAgAMBQI57vSSBQkDwmcA AAoJEKhO2uicgArKSyIAmwUHf/vtKQfcmVg4asR7U6XQl0bAAJ4pO22B5U8UH6IY l2LBCXFqw5+5fA== =Jnnf - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBO4EQf3ey5gA9JdPZAQH/1Af+KXmaC9/kub9OpkQI5VFRfW7bV3T9MbjU FJMewjf1c22KiJadKDjgXimV7xQllORvAdvhapM5f2G0nSLrVjyKp/CQoEBCizFb LmA/MJ/ZPPQ1D/UV2OnQPYBfnHsRwSewe/rnwZFPzW2VsItFGUdbrhBeDD5rPbQi MKFBpdIgfHdsu3kBT7ekc9rP5f5ZRvbqZx903M88WT6VHLkqWZQcB4HSrM3gQl7B Jddqm+3Ht8iBFeaO3/7xjupb+4WZ+FSJ4Hq3hqDUWfW5R6243hwscLPgxBSNt7aC kZkMnqEb5PkWiF3uLSft1rBzDIOPwoDGUtEOivLcTNlFDdomD976HQ== =IQaa -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas(a)suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/contact/thomas.asc | pgp -fka" Key fingerprint = 51 AD B9 C7 34 FC F2 54 01 4A 1C D4 66 64 09 84

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SuSE Security Announcement: fetchmail (SuSE-SA:2001:026)
by Thomas Biege 17 Aug '01

17 Aug '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: fetchmail Announcement-ID: SuSE-SA:2001:026 Date: Thursday, August 16th 2001 11:30 MEST Affected SuSE versions: [6.0, 6.1, 6.2,] 6.3, 6.4, 7.0, 7.1, 7.2 Vulnerability Type: remote privilege escalation Severity (1-10): 6 SuSE default package: yes Other affected systems: yes Content of this advisory: 1) security vulnerability resolved: fetchmail problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Fetchmail is a tool for retrieving and forwarding mail. Two vulnerabilities in the code of fetchmail were found in the last weeks. 1.) By sending a header with a large "To:" line a buffer overflow will be triggered in the header parsing code. 2.) By impersonating a pop3 or imap server by using DNS spoofing or getting control over the pop3/imap server an attacker could trigger a buffer overflow in the pop3 and imap code of fetchmail. All the attacker has to do is to fake a LIST response message and providing two integers. One will used as index for a stack array and the other one is the value written to this index. Both vulnerabilities could be used to get remote access to the system with the privilege of the user running fetchmail. A temporary fix is not possible, so we suggest to install the new RPM on your system. i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/fetchmail-5.8.0-48.i386.rpm 995660f54f997eb33120c6dcdab5ca73 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/fetchmail-5.8.0-48.src.rpm 6466071439f694d89d011c35265de909 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n1/fetchmail-5.6.5-27.i386.rpm a6185bbbd1cdeb6f4b5a7afbe8efcd31 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/fetchmailconf-5.6.5-0.i386.r… 4ed63ae1652db9037c56e8a6bbf95da2 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/fetchmail-5.6.5-27.src.rpm 27aed0c7fbfb882dce9451a1c673908d SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/fetchml-5.4.0-3.i386.rpm b2aec10ba865e37bef95a32f8adfa8d2 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/fetchml-5.4.0-3.src.rpm 8a133db913032e2ea04517e0d86dde5c SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/fetchml-5.3.0-3.i386.rpm d8c0aed277da334a5be9d7241f2d3fc3 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/fetchml-5.3.0-3.src.rpm 732deaa4ba6e181d15c8dbabff5e309f SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/fetchml-5.1.2-7.i386.rpm d0e91680594f84f161f8dfee95125e0a source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/fetchml-5.1.2-7.src.rpm cac94bd2373d75dad6c91d66583eadfb Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n1/fetchmail-5.6.5-12.sparc.rpm 4d7dcbf03a030ece4dd50acd3b330ad3 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/fetchmail-5.6.5-12.src.rpm 9d245f4358da492133e5a735497dbf2b SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/fetchml-5.4.0-3.sparc.rpm 07462524836665fb3ad8da365b948f5f source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/fetchml-5.4.0-3.src.rpm bb2438d4e03b01415d675c2d05e3c847 AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n1/fetchmail-5.6.5-16.alpha.rpm 0a4503aadd5981e9a4c2bc57a46eb9b9 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/fetchmail-5.6.5-16.src.rpm a8c6425a9f15b04ff27a4f0636e65f93 SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/fetchml-5.4.0-3.alpha.rpm 851a72a94dc9aa152fff3f9dfd30aeb5 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/fetchml-5.4.0-3.src.rpm e876b48882702c6c45e01326f85a610a SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/fetchml-5.3.0-3.alpha.rpm e44e632813710d4eb3b778414733631e source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/fetchml-5.3.0-3.src.rpm 27908e4fe9995dd86054533d17e85f5b SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/fetchml-5.1.2-4.alpha.rpm 0751d23ccdfd860409cb592b84c203e4 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/fetchml-5.1.2-4.src.rpm ac0a757562c01bf84780fd81e04a7784 PPC PowerPC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n1/fetchmail-5.6.5-16.ppc.rpm f84f2b9f669e3ba65d42ddac78b9f49c source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/fetchmail-5.6.5-16.src.rpm 999b7fcfb1799ae98d5a2ffaf103f9a7 SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/fetchml-5.4.0-3.ppc.rpm 55a46529b8f9cae39cd3a3d06728e300 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/fetchml-5.4.0-3.src.rpm b3ecbc340fb46e5c6501f34184fa69fd SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/fetchml-5.3.0-3.ppc.rpm d3bf46ca935d696b1a45ff1b3c820840 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/fetchml-5.3.0-3.src.rpm 6dbd73a017fd2915c9197860f47a6d28 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: Please watch out for upcomming announcements. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We advise against subscribing to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GZkBogQ57vSBEQQAk/GN+ftr 7+DBlSoixDDpfRnUk+jApGEt8hCnrnjVnPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45 t4E0fKyLVzDerCRFB1swz/mNDxT26DLysdBV5fwNHTPhxa67goAZVrehQPqJEckk IpYriOaYcKpF3n5fQIZMEfMaHEElQhcXML8AoJVXDkJYh7vI8EUB8ZURNLZMEECN A/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6TepRdLZhaylwVF/iu7uIn62ZUL4//NTOC DY7V63qg4iba/fUbOsWtEnGaiE7mQuAlsSWvRspwRA9/g9rdVf3/JdLJrLmKBThe yG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQnJn2euqylHRubEQP/aL53NZK0kBdvrKgf f6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiY I2lTRYT4uMdHuwVC3b4DqAKmoy375FERwHkrMVyKBJslv8QtbAWw5A1CAUseaHo+ 91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1U0UgUGFja2FnZSBTaWduaW5nIEtleSA8 YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUCOe70gQUJA8JnAAQLCgMEAxUDAgMWAgEC F4AACgkQqE7a6JyACspfLACffAYA+NM8NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0 xY7WbKoXs1+72b2AiEYEEBECAAYFAjpwXlIACgkQnkDjEAAKq6TczgCgi+ddhWb7 +FWcfeE6WwPZccqAHowAnjjtRyGwHLQHr5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey 5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk/xGJJREt7V12iSafaRzGuH8xWvIz1bb+ VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6iJXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq 2pudfwljp52lYVM53jgPYEz0q/v3091nlZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU +lDQT2EC6VKaxeWK8pNt6UFDwICRDQxKnlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKN bWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc 9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelxufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr 6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7UVCiSfb9CV38dmeHdPCEEjDUWquFYEnvj 3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qTJzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBE VE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/ 9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiUXpRoFCdglMznbcAyCk9C2wqb2j/D1Z2B eSBaGCSFkR6pRLebnE17LWcu72Iy+r0z+JecbPiyDpDZj4apn7IC81aNFGi7fNIT sHODbwwjiwADBgf/YPvVdzkc8OC7ztacEWCanwylKvxCdKzTDA+DfES6WUYShyiV JvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/pdGy1aKtJZrAnFEsofpmOj8VoqyyFgp/y AGQBp12+mXek7SCZRhuqalDfEMRiWEJ6J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxx QqNQXL6Z3NSxS61p+5n6BseiDUI39xxkKTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwb sklszZt6xbU+R0SjFqTvjPWx6eHfqbmNC9WMDdTjGrXDDKXFp2aYlokfN6It9vsb VlGNlOwHt/JjGoPMxW6Xqj0FLA7/VewgCdXW64hMBBgRAgAMBQI57vSSBQkDwmcA AAoJEKhO2uicgArKSyIAmwUHf/vtKQfcmVg4asR7U6XQl0bAAJ4pO22B5U8UH6IY l2LBCXFqw5+5fA== =Jnnf - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBO3zSP3ey5gA9JdPZAQEuGQf/cnbAlt/DJ+cd5JFiNZIXheBGVZUUIG/U vYeZasD8RSEhTDU11qWxn8Ypdh3sK2yPcP+LXLhIotHGsZ4xvmMDft1YXvsE6Fxj zITSkBGuOvcCW+LhRLMHuhuaTYfZWrQty1bjmt+KgALkWodrnbsayZ9Q4X0vpPmm /iH7PitiOZ4DA2CRIkaFlSlBQnHm4P1twLUZxvHbspb5B8aUtgM+49+QGQHiAYhL uWS+dgxmlAhzA5D/qtQnVdkaoegIS+41rxINnKQvuZRmIPyYno4/Z2o5XqWBOdYU +vjJ050RnfKPIrajNtmIaM/ENPk67hzpHGP6n71hqwD27ybCow9BkQ== =efR3 -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas(a)suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/contact/thomas.asc | pgp -fka" Key fingerprint = 51 AD B9 C7 34 FC F2 54 01 4A 1C D4 66 64 09 84

1 0

SuSE Security Announcement: xmcd (SuSE-SA:2001:025)
by Thomas Biege 03 Aug '01

03 Aug '01

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: xmcd Announcement-ID: SuSE-SA:2001:025 Date: Friday, Aug 3rd 2001 18:30 MEST Affected SuSE versions: (6.0, 6.1, 6.2,) 6.3, 6.4, 7.0, 7.1, 7.2 Vulnerability Type: local privilege escalation Severity (1-10): 4 SuSE default package: no Other affected systems: yes Content of this advisory: 1) security vulnerability resolved: yes problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Cda, a setuid commandline part of xmcd, a X11/Motif audio CD player by Ti Kan <ti(a)amb.org>, was found vulnerable by a link attack and some bufferoverflows. These bugs could be exploited by an adversary, who has access to the system, to overwrite files or gain higher privileges. As a temporary fix, just remove the setuid bit from cda: /bin/chmod 755 /usr/X11R6/bin/cda or let just trusted users execute cda: /bin/chown root.trusted /usr/X11R6/bin/cda /bin/chmod 4750 /usr/X11R6/bin/cda Don't forget to add these changes to your /etc/permissions.local file Users of SuSE 7.2 with permissions.secure or permissions.paranoid activated are safe, because setuid is already removed. Thanks to Paul Starzetz <paul(a)starzetz.de>, who reportes the link attack and to Ti Kan <ti(a)amb.org>, the author of xmcd, for his fast response and help. New RPMs can be found at the following places. i386 Intel Platform: SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/snd2/xmcd-2.6-195.i386.rpm 2e11b84704ab44c61b04f2e9bfde1371 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/xmcd-2.6-195.src.rpm 2d934ab9662d3aee69041d2118ead682 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/snd2/xmcd-3.0.2-2.i386.rpm dbeb8ddbf8e435d54930d1acef85cfe6 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/xmcd-3.0.2-2.src.rpm 38c24dc21572cfefc3f678bb534457e7 SuSE-7.0 ftp://ftp.suse.com/pub/suse/i386/update/7.0/snd2/xmcd-3.0.2-2.i386.rpm 55ef501823f33033d6e649a6df872cf7 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/xmcd-3.0.2-2.src.rpm 6ba4db1799355aef6fe5202164338b5d SuSE-6.4 ftp://ftp.suse.com/pub/suse/i386/update/6.4/snd2/xmcd-3.0.2-2.i386.rpm 8f0dd51c4ed7b9dabd554793a98504f3 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/xmcd-3.0.2-2.src.rpm 076151818b5054d40d955bdf060f601b SuSE-6.3 ftp://ftp.suse.com/pub/suse/i386/update/6.3/snd2/xmcd-3.0.2-2.i386.rpm a53b36543b555ad435eebede89324227 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/xmcd-3.0.2-2.src.rpm 4274da4334b67a04d10f2ade67305679 Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/snd2/xmcd-3.0.2-0.sparc.rpm b6fb5c9a71c578866fcefd978c3dd469 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/xmcd-3.0.2-0.src.rpm 0c6a783486669cc57b35575edabfd6b4 SuSE-7.0 ftp://ftp.suse.com/pub/suse/sparc/update/7.0/snd2/xmcd-3.0.2-0.sparc.rpm b7ae66325a2875e97d28ec7b0152dc35 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/xmcd-3.0.2-0.src.rpm 836be977435960908c77d753c47084fb AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/snd2/xmcd-3.0.2-2.alpha.rpm b2c1652b694655fbd5635b455355fe59 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/xmcd-3.0.2-2.src.rpm 78af000c592f274fa78019da47463c2f SuSE-7.0 ftp://ftp.suse.com/pub/suse/axp/update/7.0/snd2/xmcd-3.0.2-3.alpha.rpm 67a11e69a66ee0e5c36f8bd4c67d1e49 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/xmcd-3.0.2-3.src.rpm 17fa48bdd3b20c263c09578391a6da2e SuSE-6.4 ftp://ftp.suse.com/pub/suse/axp/update/6.4/snd2/xmcd-3.0.2-4.alpha.rpm c0ee2188da89b7756e143495b2947a41 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/xmcd-3.0.2-4.src.rpm 39acbbe4d54c671f925b342091f4b994 SuSE-6.3 ftp://ftp.suse.com/pub/suse/axp/update/6.3/snd2/xmcd-3.0.2-4.alpha.rpm 5480828717020d146da0d9413ab8fab8 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/xmcd-3.0.2-4.src.rpm 5a5d4af61d0b4ce629ad19a06d8dcd2b PPC PowerPC Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/snd2/xmcd-3.0.2-3.ppc.rpm 3292bb4e6410aa1d5268fca8540024af source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/xmcd-3.0.2-3.src.rpm f6ddf546fa6562ac02d7b56fde58ea11 SuSE-7.0 ftp://ftp.suse.com/pub/suse/ppc/update/7.0/snd2/xmcd-3.0.2-3.ppc.rpm 4bd49ef46dbf59a9155af6322a4a34c3 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/xmcd-3.0.2-3.src.rpm 67762f89ddeec6eb4a99a5919ad35927 SuSE-6.4 ftp://ftp.suse.com/pub/suse/ppc/update/6.4/snd2/xmcd-3.0.2-3.ppc.rpm 295884a4eb13da364b6a8f0b3ae2f69d source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/xmcd-3.0.2-3.src.rpm 185fd215007d17348e11982bbc2c2ad1 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - openssl Currently we check are checking the dependencies of openssl to other dynamic or static linked applications on SuSE Linux. An announcement will be released soon. - dqs dex(a)raza-mexicana.org has found an exploitable buffer overflow bug in the dsh program from the dqs package on SuSE Linux distributions. To workaround the problem, do "chmod -s /usr/bin/dsh" and change the files /etc/permissions* to reflect the change. If you do not need the dqs package, then deinstall it (rpm -e dqs). Packages for most of the supported SuSE Linux distributions are available at the usual location ftp://ftp.suse.com/pub/suse/<arch>/<dist> for download and installation/update. Do not forget to change the files /etc/permissions* to remove the suid-bit from the dsh program. Please note that we will not issue a dedicated security announcement for this specific bug. - pcp Paul Starzetz discovered a security weakness in the setuid root program /usr/share/pcp/bin/pmpost. The common library in pcp trusts the environment that has been supplied by the user, regardless of privileged execution or not. By consequence, a user can specify the configuration file and therefore write to files owned by root. The problem is not based on insecurely following symlinks as stated by Paul Starzetz. The pcp package is not installed by default in SuSE Linux distributions. We have provided update packages for the SuSE Linux distributions version 7.1 and 7.2 that remove the setuid bit from the pmpost binary. Versions before SuSE-7.1 were not affected because the setuid bit was not set. We thank Keith Owens and Mark Goodwin from Silicon Graphics for responding quickly and for publishing a new version of the pcp package which will be included in future releases of the SuSE Linux distribution. For more information see the /usr/share/doc/packages/pcp directory of your SuSE Linux installation after installing the update package, or go to obtained from http://oss.sgi.com/projects/pcp/download . Please note that there will not be a dedicated security announcement for this specific bug. - fetchmail (fetchml) New fetchmail packages are available on the ftp server. The packages cure a buffer overflow that can be exploited by sending a victim a specially designed email, waiting for the victim's fetchmail program to pick up the email. We are preparing a security announcement for this problem. - openssh update packages for the openssh package after (and including) SuSE-6.4 are available on our ftp servers ftp.suse.de (for < 7.1) or ftp.suse.com (for >= 7.1). We are currently checking for a non-security related irregularity in sshd's behaviour under faulty setup conditions. - exim SuSE Linux distributions do not contain the exim Mail Transport Agent (See http://www.exim.org/ for details) and are therefore not susceptible to the recently found security-related bugs. - webmin SuSE Linux distributions do not contain the webmin administration web frontend (See http://www.webmin.org/ for details) and are therefore not vulnerable to the recently found security-related problems in the software. ______________________________________________________________________________ 3) standard appendix: authenticity verification, additional information - Package authenticity verification: SuSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SuSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SuSE in rpm packages for SuSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SuSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the toplevel directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SuSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. =================================================== SuSE's security contact is <security(a)suse.com>. The <security(a)suse.com> public key is listed below. =================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the cleartext signature shows proof of the authenticity of the text. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security(a)suse.de> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build(a)suse.de> - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GZkBogQ57vSBEQQAk/GN+ftr 7+DBlSoixDDpfRnUk+jApGEt8hCnrnjVnPs/9Cr33+CXLQbILOO7Y5oiPbJdHh45 t4E0fKyLVzDerCRFB1swz/mNDxT26DLysdBV5fwNHTPhxa67goAZVrehQPqJEckk IpYriOaYcKpF3n5fQIZMEfMaHEElQhcXML8AoJVXDkJYh7vI8EUB8ZURNLZMEECN A/sH0MCnb4Q6ZcRyeZ3+1PHP8hP73b6TepRdLZhaylwVF/iu7uIn62ZUL4//NTOC DY7V63qg4iba/fUbOsWtEnGaiE7mQuAlsSWvRspwRA9/g9rdVf3/JdLJrLmKBThe yG+PSJE3W7cAE4ZWafGxIRCwXhmj3TQnJn2euqylHRubEQP/aL53NZK0kBdvrKgf f6O8Of6tqoss8Dkk55I7QVFSp+My1Dn+mngQKFejTAgtyo/WmR3wPjQ9HoT2lRiY I2lTRYT4uMdHuwVC3b4DqAKmoy375FERwHkrMVyKBJslv8QtbAWw5A1CAUseaHo+ 91wmYJ4/4p6YUahqbG/tZyhbxfq0KFN1U0UgUGFja2FnZSBTaWduaW5nIEtleSA8 YnVpbGRAc3VzZS5kZT6IXAQTEQIAHAUCOe70gQUJA8JnAAQLCgMEAxUDAgMWAgEC F4AACgkQqE7a6JyACspfLACffAYA+NM8NBhyRyH+nTX58CNjwLIAoIx9fj52BJe0 xY7WbKoXs1+72b2AiEYEEBECAAYFAjpwXlIACgkQnkDjEAAKq6TczgCgi+ddhWb7 +FWcfeE6WwPZccqAHowAnjjtRyGwHLQHr5OTFAYTXi2Wv6jNiQEVAwUQOnBgb3ey 5gA9JdPZAQE1pwf/QJ+b34lFBNVUJ7fk/xGJJREt7V12iSafaRzGuH8xWvIz1bb+ VARxnnt16FDQ1cDNjoEhCEmcW83Vxp6iJXE9PE8wVA/Yue/bon5JS7J69+UiQ2eq 2pudfwljp52lYVM53jgPYEz0q/v3091nlZ8CYkAkN9JDS1lV1gEzJ7J0+POngDpU +lDQT2EC6VKaxeWK8pNt6UFDwICRDQxKnlOoiDvTrdWT7QdJZ4sPv8Qotdw9+tKN bWQ2DqdIRxyTdw9xDfAtcj6mXeQr7852Lwem1gSKVnEYHZ9g1FTJqVOutY8KhpUc 9RfOCRv8XuIxrs4KSbfSF0s8qIRCQelxufg9AbkCDQQ57vSSEAgAhJHQTejMX+Vr 6g1pHDEcusJ63fQ2CfFFE5iE9okH9O7UVCiSfb9CV38dmeHdPCEEjDUWquFYEnvj 3WICMtH249t1Ymuf4Du3yRKQ9oXdn/qTJzlrx9qzjiG3mH7ocwHOgUIwCrZoEdBE VE2n0zPVm+hddwjWWTWXw6pxQz+i9dsN89xexRV5M9O0bNwCLaNWX2GXeLAkqTK/ 9EuZy6x2yLxi6du9YYUAXkZpqBhCjtiUXpRoFCdglMznbcAyCk9C2wqb2j/D1Z2B eSBaGCSFkR6pRLebnE17LWcu72Iy+r0z+JecbPiyDpDZj4apn7IC81aNFGi7fNIT sHODbwwjiwADBgf/YPvVdzkc8OC7ztacEWCanwylKvxCdKzTDA+DfES6WUYShyiV JvZzRy25LJ5WcK20kzOS6Qv1OrIXiz/pdGy1aKtJZrAnFEsofpmOj8VoqyyFgp/y AGQBp12+mXek7SCZRhuqalDfEMRiWEJ6J5dLkyShyRDWyPbFh0HXE7QTHN+IKKxx QqNQXL6Z3NSxS61p+5n6BseiDUI39xxkKTFwFrkgUIc5Gs2Or2lhaWvGwSfoCmwb sklszZt6xbU+R0SjFqTvjPWx6eHfqbmNC9WMDdTjGrXDDKXFp2aYlokfN6It9vsb VlGNlOwHt/JjGoPMxW6Xqj0FLA7/VewgCdXW64hMBBgRAgAMBQI57vSSBQkDwmcA AAoJEKhO2uicgArKSyIAmwUHf/vtKQfcmVg4asR7U6XQl0bAAJ4pO22B5U8UH6IY l2LBCXFqw5+5fA== =Jnnf - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBO2ra+Xey5gA9JdPZAQESXgf+IL48vWoNAkc3LC2KfLBKWELXNFj0fhZL V3p0Q2UtUUdJDpP3FL+YXn7ydOBQsI6jCk972Qhrbo8fW9wrBzNQRuI7qRd2GyKm LN5ZWa3QiaM3yjV1/GoWODmXlm/48N/Veqbz0Fiz9tuEfj6RbIwszEKRz4Gsu9pt o6TCzbAG1bY4ybzl1GkvOQkwvP/82tn0xbpey7XPyXbCPJAI+j/ZnpvCX1b/zpVv c7BDOc0r9GReICxpUiQq6ZUOhQO/h6IouaVyJb6AP5TM/VU6izTK4z6bMd58OMad eONemlTrvwtfkd2BKGK1O2trcDCFLH3lLqVrgnf8welwEty54hALtg== =eQ9R -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege, SuSE GmbH, Schanzaeckerstr. 10, 90443 Nuernberg E@mail: thomas(a)suse.de Function: Security Support & Auditing "lynx -source http://www.suse.de/~thomas/contact/thomas.asc | pgp -fka" Key fingerprint = 51 AD B9 C7 34 FC F2 54 01 4A 1C D4 66 64 09 84

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