November 2003 - openSUSE Security Announce

SUSE Security Announcement: bind8 (SuSE-SA:2003:047)
by Thomas Biege 28 Nov '03

28 Nov '03

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: bind8 Announcement-ID: SuSE-SA:2003:047 Date: Friday, Nov 28th 2003 15:30 MEST Affected products: 7.3, 8.0, 8.1, 8.2 Vulnerability Type: cache poisoning/denial-of-service Severity (1-10): 5 SUSE default package: yes Cross References: CAN-2003-0914 Content of this advisory: 1) security vulnerability resolved: - caching negative answers problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - ethereal - KDE - mc - apache1/2 - gpg - freeradius - xscreensaver - screen - mod_gzip - gnpan 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information To resolve IP addresses to host and domain names and vice versa the DNS service needs to be consulted. The most popular DNS software is the BIND8 and BIND9 suite. The BIND8 code is vulnerable to a remote denial-of-service attack by poisoning the cache with authoritative negative responses that should not be accepted otherwise. To execute this attack a name-server needs to be under malicious control and the victim's bind8 has to query this name-server. The attacker can set a high TTL value to keep his negative record as long as possible in the cache of the victim. For this time the clients of the attacked site that rely on the bind8 service will not be able to reach the domain specified in the negative record. These records should disappear after the time-interval (TTL) elapsed. There is no temporary workaround for this bug. To make this update effective run "rcnamed restart" as root please. 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 -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. Intel i386 Platform: SuSE-8.2: ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/bind8-8.3.4-64.i586.rpm 3d44d46f0e8397c69d53e96aba9fbd6d patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/bind8-8.3.4-64.i586.pa… cce1df09a0b6fb5cbbddcc462f055c64 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/bind8-8.3.4-64.src.rpm a980a0eca79de02f135fce1cbe84ee22 SuSE-8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/bind8-8.2.4-336.i586.r… 4a46d0560eac1ca5de77c12f8abe4952 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/bind8-8.2.4-336.i586.p… c8020302f6f161e9d86a3f1615304a23 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/bind8-8.2.4-336.src.rpm c9ee184cbd1f1722c94de9fd66f11801 SuSE-8.0: ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/bind8-8.2.4-334.i386.rpm f739fdb03a7df6685e0aa026f98a0389 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/bind8-8.2.4-334.i386.patch.r… a3de26e06b689d29b4b4b08c04fa32f4 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/bind8-8.2.4-334.src.rpm 85d8d9fee3c8a029263777a45b4af011 SuSE-7.3: ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/bind8-8.2.4-334.i386.rpm 381c2b6f805ca30d0fefc98afaee9ba0 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/bind8-8.2.4-334.src.rpm 97a87469cfb573bdd89f8f3a2c02264f Sparc Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n2/bind8-8.2.4-128.sparc.rpm c08454b933ed2365d9d2ab1322803af6 source rpm(s): ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/bind8-8.2.4-128.src.rpm 827a7f56273c7a25ac40ffba728e9150 PPC Power PC Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/bind8-8.2.4-243.ppc.rpm 12f1f205c08449e945c8ad344a8e3b41 source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/bind8-8.2.4-243.src.rpm 177093e76b3b8d2679089a1ab1c46d0e ______________________________________________________________________________ 2) Pending vulnerabilities in SUSE Distributions and Workarounds: - ethereal A new official version of ethereal, a network traffic analyzer, was released to fix various security-related problems. An update package is currently being tested and will be released as soon as possible. - KDE New KDE packages are currently being tested. These packages fixes several vulnerabilities: + remote root compromise (CAN-2003-0690) + weak cookies (CAN-2003-0692) + SSL man-in-the-middle attack + information leak through HTML-referrer (CAN-2003-0459) + wrong file permissions of config files The packages will be release as soon as testing is finished. - mc By using a special combination of links in archive-files it is possible to execute arbitrary commands while mc tries to open it in its VFS. The packages are currently tested and will be release as soon as possible. - apache1/2 The widely used HTTP server apache has several security vulnerabilities: - locally exploitable buffer overflow in the regular expression code. The attacker must be able to modify .htaccess or httpd.conf. (affects: mod_alias and mod_rewrite) - under some circumstances mod_cgid will output its data to the wrong client (affects: apache2) The new packages are available on our FTP servers. - gpg In GnuPG version 1.0.2 a new code for ElGamal was introduced. This code leads to an attack on users who use ElGamal keys for signing. It is possible to reconstruct the private ElGamal key by analyzing a public ElGamal signature. Please note that the ElGamal algorithm is seldomly used and GnuPG displays several warnings when generating ElGamal signature keys. The default key generation process in GnuPG will create a DSA signature key and an ElGamal subkey for _encryption only_. These keys are not affected by this vulnerability. Anyone using ElGamal signature keys (type 20, check fourth field of "gpg --list-keys --with-colon" output) should revoke them. - freeradius Two vulnerabilities were found in the FreeRADIUS package. The remote denial-of-service attack bug was fixed and new packages will be released as soon as testing was successfully finished. The other bug is a remote buffer overflow in the module rlm_smb. We do not ship this module and will fix it for future releases. - xscreensaver The well known screen-saver for X is vulnerable to several local tmp file attacks as well as a crash when verifying a password. Only SuSE Linux 9.0 products are affected. The new packages are available on our FTP servers. - screen A buffer overflow in screen was reported. Since SuSE Linux 8.0 we do not ship screen with the s-bit anymore. An update package will be released for 7.3 as soon as possible. - mod_gzip The apache module mod_gzip is vulnerable to remote code execution while running in debug-mode. We do not ship this module in debug-mode but future versions will include the fix. - gnpan A remote denial-of-service attack can be run against the GNOME news-reader program gnpan. This bug affects SuSE Linux 8.0, 8.1, 8.2. Update packages are available on our FTP servers. ______________________________________________________________________________ 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 un-installed 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 top-level 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 announcements 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> or <security(a)suse.de>. The <security(a)suse.de> 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 clear-text signature shows proof of the authenticity of the text. SUSE Linux AG 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 mQGiBDnu9IERBACT8Y35+2vv4MGVKiLEMOl9GdST6MCkYS3yEKeueNWc+z/0Kvff 4JctBsgs47tjmiI9sl0eHjm3gTR8rItXMN6sJEUHWzDP+Y0PFPboMvKx0FXl/A0d M+HFrruCgBlWt6FA+okRySQiliuI5phwqkXefl9AhkwR8xocQSVCFxcwvwCglVcO QliHu8jwRQHxlRE0tkwQQI0D+wfQwKdvhDplxHJ5nf7U8c/yE/vdvpN6lF0tmFrK XBUX+K7u4ifrZlQvj/81M4INjtXreqDiJtr99Rs6xa0ScZqITuZC4CWxJa9GynBE D3+D2t1V/f8l0smsuYoFOF7Ib49IkTdbtwAThlZp8bEhELBeGaPdNCcmfZ66rKUd G5sRA/9ovnc1krSQF2+sqB9/o7w5/q2qiyzwOSTnkjtBUVKn4zLUOf6aeBAoV6NM CC3Kj9aZHfA+ND0ehPaVGJgjaVNFhPi4x0e7BULdvgOoAqajLfvkURHAeSsxXIoE myW/xC1sBbDkDUIBSx5oej73XCZgnj/inphRqGpsb+1nKFvF+rQoU3VTRSBQYWNr YWdlIFNpZ25pbmcgS2V5IDxidWlsZEBzdXNlLmRlPohcBBMRAgAcBQI57vSBBQkD wmcABAsKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyl8sAJ98BgD40zw0GHJHIf6d NfnwI2PAsgCgjH1+PnYEl7TFjtZsqhezX7vZvYCIRgQQEQIABgUCOnBeUgAKCRCe QOMQAAqrpNzOAKCL512FZvv4VZx94TpbA9lxyoAejACeOO1HIbActAevk5MUBhNe LZa/qM2JARUDBRA6cGBvd7LmAD0l09kBATWnB/9An5vfiUUE1VQnt+T/EYklES3t XXaJJp9pHMa4fzFa8jPVtv5UBHGee3XoUNDVwM2OgSEISZxbzdXGnqIlcT08TzBU D9i579uifklLsnr35SJDZ6ram51/CWOnnaVhUzneOA9gTPSr+/fT3WeVnwJiQCQ3 0kNLWVXWATMnsnT486eAOlT6UNBPYQLpUprF5Yryk23pQUPAgJENDEqeU6iIO9Ot 1ZPtB0lniw+/xCi13D360o1tZDYOp0hHHJN3D3EN8C1yPqZd5CvvznYvB6bWBIpW cRgdn2DUVMmpU661jwqGlRz1F84JG/xe4jGuzgpJt9IXSzyohEJB6XG5+D0BiF0E ExECAB0FAjxqqTQFCQoAgrMFCwcKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyp1f AJ9dR7saz2KPNwD3U+fy/0BDKXrYGACfbJ8fQcJqCBQxeHvt9yMPDVq0B0W5Ag0E Oe70khAIAISR0E3ozF/la+oNaRwxHLrCet30NgnxRROYhPaJB/Tu1FQokn2/Qld/ HZnh3TwhBIw1FqrhWBJ7491iAjLR9uPbdWJrn+A7t8kSkPaF3Z/6kyc5a8fas44h t5h+6HMBzoFCMAq2aBHQRFRNp9Mz1ZvoXXcI1lk1l8OqcUM/ovXbDfPcXsUVeTPT tGzcAi2jVl9hl3iwJKkyv/RLmcusdsi8YunbvWGFAF5GaagYQo7YlF6UaBQnYJTM 523AMgpPQtsKm9o/w9WdgXkgWhgkhZEeqUS3m5xNey1nLu9iMvq9M/iXnGz4sg6Q 2Y+GqZ+yAvNWjRRou3zSE7Bzg28MI4sAAwYH/2D71Xc5HPDgu87WnBFgmp8MpSr8 QnSs0wwPg3xEullGEocolSb2c0ctuSyeVnCttJMzkukL9TqyF4s/6XRstWirSWaw JxRLKH6Zjo/FaKsshYKf8gBkAaddvpl3pO0gmUYbqmpQ3xDEYlhCeieXS5MkockQ 1sj2xYdB1xO0ExzfiCiscUKjUFy+mdzUsUutafuZ+gbHog1CN/ccZCkxcBa5IFCH ORrNjq9pYWlrxsEn6ApsG7JJbM2besW1PkdEoxak74z1senh36m5jQvVjA3U4xq1 wwylxadmmJaJHzeiLfb7G1ZRjZTsB7fyYxqDzMVul6o9BSwO/1XsIAnV1uuITAQY EQIADAUCOe70kgUJA8JnAAAKCRCoTtronIAKyksiAJsFB3/77SkH3JlYOGrEe1Ol 0JdGwACeKTttgeVPFB+iGJdiwQlxasOfuXyITAQYEQIADAUCPGqpWQUJCgCCxwAK CRCoTtronIAKyofBAKCSZM2UFyta/fe9WgITK9I5hbxxtQCfX+0ar2CZmSknn3co SPihn1+OBNyZAQ0DNuEtBAAAAQgAoCRcd7SVZEFcumffyEwfLTcXQjhKzOahzxpo omuF+HIyU4AGq+SU8sTZ/1SsjhdzzrSAfv1lETACA+3SmLr5KV40Us1w0UC64cwt A46xowVq1vMlH2Lib+V/qr3b1hE67nMHjysECVx9Ob4gFuKNoR2eqnAaJvjnAT8J /LoUC20EdCHUqn6v+M9t/WZgC+WNR8cq69uDy3YQhDP/nIan6fm2uf2kSV9A7ZxE GrwsWl/WX5Q/sQqMWaU6r4az98X3z90/cN+eJJ3vwtA+rm+nxEvyev+jaLuOQBDf ebh/XA4FZ35xmi+spdiVeJH4F/ubaGlmj7+wDOF3suYAPSXT2QAFEbQlU3VTRSBT ZWN1cml0eSBUZWFtIDxzZWN1cml0eUBzdXNlLmRlPokBFQMFEDbhLUfkWLKHsco8 RQEBVw4H/1vIdiOLX/7hdzYaG9crQVIk3QwaB5eBbjvLEMvuCZHiY2COUg5QdmPQ 8SlWNZ6k4nu1BLcv2g/pymPUWP9fG4tuSnlUJDrWGm3nhyhAC9iudP2u1YQY37Gb B6NPVaZiYMnEb4QYFcqv5c/r2ghSXUTYk7etd6SW6WCOpEqizhx1cqDKNZnsI/1X 11pFcO2N7rc6byDBJ1T+cK+F1Ehan9XBt/shryJmv04nli5CXQMEbiqYYMOu8iaA 8AWRgXPCWqhyGhcVD3LRhUJXjUOdH4ZiHCXaoF3zVPxpeGKEQY8iBrDeDyB3wHmj qY9WCX6cmogGQRgYG6yJqDalLqrDOdmJARUDBRA24S0Ed7LmAD0l09kBAW04B/4p WH3f1vQn3i6/+SmDjGzUu2GWGq6Fsdwo2hVM2ym6CILeow/K9JfhdwGvY8LRxWRL hn09j2IJ9P7H1Yz3qDf10AX6V7YILHtchKT1dcngCkTLmDgC4rs1iAAl3f089sRG BafGPGKv2DQjHfR1LfRtbf0P7c09Tkej1MP8HtQMW9hPkBYeXcwbCjdrVGFOzqx+ AvvJDdT6a+oyRMTFlvmZ83UV5pgoyimgjhWnM1V4bFBYjPrtWMkdXJSUXbR6Q7Pi RZWCzGRzwbaxqpl3rK/YTCphOLwEMB27B4/fcqtBzgoMOiaZA0M5fFoo54KgRIh0 zinsSx2OrWgvSiLEXXYKiEYEEBECAAYFAjseYcMACgkQnkDjEAAKq6ROVACgjhDM /3KM+iFjs5QXsnd4oFPOnbkAnjYGa1J3em+bmV2aiCdYXdOuGn4ZiQCVAwUQN7c7 whaQN/7O/JIVAQEB+QP/cYblSAmPXxSFiaHWB+MiUNw8B6ozBLK0QcMQ2YcL6+Vl D+nSZP20+Ja2nfiKjnibCv5ss83yXoHkYk2Rsa8foz6Y7tHwuPiccvqnIC/c9Cvz dbIsdxpfsi0qWPfvX/jLMpXqqnPjdIZErgxpwujas1n9016PuXA8K3MJwVjCqSKI RgQQEQIABgUCOhpCpAAKCRDHUqoysN/3gCt7AJ9adNQMbmA1iSYcbhtgvx9ByLPI DgCfZ5Wj+f7cnYpFZI6GkAyyczG09sE= =LRKC - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iQEVAwUBP8dgT3ey5gA9JdPZAQH5LQf+MA/cLvB14QAZFTXwtqB2tNpcotkmJyF8 oWbsWl7EnsF6hlR7tr3Hjk2bvpzE8yLShtckMvtVAy1Xj29fvWpHjtZM1TEfjWSk XgxeJ4n5HvKMjyOYopNgdbdQCvcr8v4eWjVA9ekK/WXikIXRWsiN9PhT6c0NQxfA tO7zHQYHhGwH4jae8aD6EPWJhc1sLzQMC4XCkFxIFlZouAtVr7rShDNUamKcaV63 5c1uhewBorqfD7o8x85OCXcAA9WEnEs7t/mJnHC0hLgYF259YxX3HtXrj18jnD8/ YvVnzfkQwDxRY3qALRjAfd05QGOGir75fSBCtofP2lDPg8igRFo8UQ== =fX7r -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege <thomas(a)suse.de>, SUSE LINUX AG, 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 83 -- ... stay with me, safe and ignorant, go back to sleep... - Maynard James Keenan

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SUSE Security Announcement: sane (SuSE-SA:2003:046)
by Thomas Biege 18 Nov '03

18 Nov '03

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: sane Announcement-ID: SuSE-SA:2003:046 Date: Tuesday, Nov 18th 2003 14:30 MEST Affected products: 7.3, 8.0, 8.1 SuSE Linux Desktop 1.0 Vulnerability Type: remote denial-of-service Severity (1-10): 5 SUSE default package: yes Cross References: CAN-2003-0773 CAN-2003-0774 CAN-2003-0775 CAN-2003-0776 CAN-2003-0777 CAN-2003-0778 Content of this advisory: 1) security vulnerability resolved: several security vulnerabilities problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - ethereal - KDE - KDE wrong file permissions - ircd - mc - apache1/2 - proftpd - gdm2 - epic/epic4 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The sane (Scanner Access Now Easy) package provides access to scanners either locally or remotely over the network. Several bugs in sane were fixed to avoid remote denial-of-service attacks. These attacks can even be executed if the remote attacker is not allowed to access the sane server by not listing the attackers IP in the file sane.conf. Per default saned only accepts local requests. As a temporary workaround saned can be started via xinetd or inetd in conjunction with tcpwrapper to restrict remote access. 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 -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. Intel i386 Platform: SuSE-8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/sane-1.0.8-143.i586.rpm 5b728bc3ac724be64aa736dbebe2aa23 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/sane-1.0.8-143.i586.pa… 77ab2574c35513136076c4b2a77e9cbf source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/sane-1.0.8-143.src.rpm 6ddec5bdadb07f985a08e592cd4c68b3 SuSE-8.0: ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra2/sane-1.0.7-217.i386.rpm 9438d81c7bd8b41dee948696f138c771 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra2/sane-1.0.7-217.i386.patch.… f461a294ab7d3638bf4b3e83f3910143 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/sane-1.0.7-217.src.rpm ea888fa0c4e6aaf41e23caaf4f68a1d2 SuSE-7.3: ftp://ftp.suse.com/pub/suse/i386/update/7.3/gra1/sane-1.0.5-295.i386.rpm 53d25817ed9c53cf6078d3794862a13e source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/sane-1.0.5-295.src.rpm 593a886a54482c841baa0fe9d43690c6 Sparc Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/gra1/sane-1.0.5-114.sparc.rpm bdb7ce58c8d363a03dadc719c2421d84 source rpm(s): ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/sane-1.0.5-114.src.rpm 4d0f4994f1fc730edfcefa2d33fe456d PPC Power PC Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/gra1/sane-1.0.5-179.ppc.rpm 83643306b81f0e89d4a5c96001a65ea5 source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/sane-1.0.5-179.src.rpm fa277cfb3ec68aedb24de2ff2d13673f ______________________________________________________________________________ 2) Pending vulnerabilities in SUSE Distributions and Workarounds: - ethereal A new official version of ethereal, a network traffic analyzer, was released to fix various security-related problems. An update package is currently being tested and will be released as soon as possible. - KDE New KDE packages are currently being tested. These packages fixes several vulnerabilities: + remote root compromise (CAN-2003-0690) + weak cookies (CAN-2003-0692) + SSL man-in-the-middle attack + information leak through HTML-referrer (CAN-2003-0459) The packages will be release as soon as testing is finished. - KDE wrong file permissions Due to a missing synchronisation during SuSE Linux 8.2 beta-testing phase some configuration files of KDE on SuSE Linux 8.2 are world- writeable. Please check the files in /etc/opt/kde3/share/config and add an appropritae line to /etc/permissions.local, like: /etc/opt/kde3/share/config/kmailrc root.root 0644 /etc/opt/kde3/share/config/kioslaverc root.root 0644 /etc/opt/kde3/share/config/kdeglobals root.root 0644 Set the new permission with 'chkstat -set /etc/permissions.local' as root. - ircd The Internet Relay Chat daemon is vulnerable to a remote denial-of- service attack. The attack can be triggered by irc clients directly connected to the daemon. Update packages are available on our FTP servers. - mc By using a special combination of links in archive-files it is possible to execute arbitrary commands while mc tries to open it in its VFS. The packages are currently tested and will be release as soon as possible. - apache1/2 The widely used HTTP server apache has several security vulnerabilities: - locally exploitable buffer overflow in the regular expression code. The attacker must be able to modify .htaccess or httpd.conf. (affects: mod_alias and mod_rewrite) - under some circumstances mod_cgid will output its data to the wrong client (affects: apache2) - proftpd A remote denial-of-service attack in the FTP server proftpd was fixed. The denial-of-service can be triggered by a one-byte buffer overflow with a fixed character. Therefore the bug can not be abused by an attacker to execute arbitrary code. If the binary is compiled with version 3.x of gcc this bug may not even lead to denial-of-service condition due to stack alignment. Update packages are available on our FTP servers. - gdm2 Two remote denial-of-service attacks were fixed in GDM. Update packages are available on our FTP servers. - epic/epic4 The well known IRC client epic can probably be exploited remotely by a malicious server. Update packages are available on our FTP servers. ______________________________________________________________________________ 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 un-installed 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 top-level 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 announcements 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> or <security(a)suse.de>. The <security(a)suse.de> 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 clear-text signature shows proof of the authenticity of the text. SUSE Linux AG 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 mQGiBDnu9IERBACT8Y35+2vv4MGVKiLEMOl9GdST6MCkYS3yEKeueNWc+z/0Kvff 4JctBsgs47tjmiI9sl0eHjm3gTR8rItXMN6sJEUHWzDP+Y0PFPboMvKx0FXl/A0d M+HFrruCgBlWt6FA+okRySQiliuI5phwqkXefl9AhkwR8xocQSVCFxcwvwCglVcO QliHu8jwRQHxlRE0tkwQQI0D+wfQwKdvhDplxHJ5nf7U8c/yE/vdvpN6lF0tmFrK XBUX+K7u4ifrZlQvj/81M4INjtXreqDiJtr99Rs6xa0ScZqITuZC4CWxJa9GynBE D3+D2t1V/f8l0smsuYoFOF7Ib49IkTdbtwAThlZp8bEhELBeGaPdNCcmfZ66rKUd G5sRA/9ovnc1krSQF2+sqB9/o7w5/q2qiyzwOSTnkjtBUVKn4zLUOf6aeBAoV6NM CC3Kj9aZHfA+ND0ehPaVGJgjaVNFhPi4x0e7BULdvgOoAqajLfvkURHAeSsxXIoE myW/xC1sBbDkDUIBSx5oej73XCZgnj/inphRqGpsb+1nKFvF+rQoU3VTRSBQYWNr YWdlIFNpZ25pbmcgS2V5IDxidWlsZEBzdXNlLmRlPohcBBMRAgAcBQI57vSBBQkD wmcABAsKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyl8sAJ98BgD40zw0GHJHIf6d NfnwI2PAsgCgjH1+PnYEl7TFjtZsqhezX7vZvYCIRgQQEQIABgUCOnBeUgAKCRCe QOMQAAqrpNzOAKCL512FZvv4VZx94TpbA9lxyoAejACeOO1HIbActAevk5MUBhNe LZa/qM2JARUDBRA6cGBvd7LmAD0l09kBATWnB/9An5vfiUUE1VQnt+T/EYklES3t XXaJJp9pHMa4fzFa8jPVtv5UBHGee3XoUNDVwM2OgSEISZxbzdXGnqIlcT08TzBU D9i579uifklLsnr35SJDZ6ram51/CWOnnaVhUzneOA9gTPSr+/fT3WeVnwJiQCQ3 0kNLWVXWATMnsnT486eAOlT6UNBPYQLpUprF5Yryk23pQUPAgJENDEqeU6iIO9Ot 1ZPtB0lniw+/xCi13D360o1tZDYOp0hHHJN3D3EN8C1yPqZd5CvvznYvB6bWBIpW cRgdn2DUVMmpU661jwqGlRz1F84JG/xe4jGuzgpJt9IXSzyohEJB6XG5+D0BiF0E ExECAB0FAjxqqTQFCQoAgrMFCwcKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyp1f AJ9dR7saz2KPNwD3U+fy/0BDKXrYGACfbJ8fQcJqCBQxeHvt9yMPDVq0B0W5Ag0E Oe70khAIAISR0E3ozF/la+oNaRwxHLrCet30NgnxRROYhPaJB/Tu1FQokn2/Qld/ HZnh3TwhBIw1FqrhWBJ7491iAjLR9uPbdWJrn+A7t8kSkPaF3Z/6kyc5a8fas44h t5h+6HMBzoFCMAq2aBHQRFRNp9Mz1ZvoXXcI1lk1l8OqcUM/ovXbDfPcXsUVeTPT tGzcAi2jVl9hl3iwJKkyv/RLmcusdsi8YunbvWGFAF5GaagYQo7YlF6UaBQnYJTM 523AMgpPQtsKm9o/w9WdgXkgWhgkhZEeqUS3m5xNey1nLu9iMvq9M/iXnGz4sg6Q 2Y+GqZ+yAvNWjRRou3zSE7Bzg28MI4sAAwYH/2D71Xc5HPDgu87WnBFgmp8MpSr8 QnSs0wwPg3xEullGEocolSb2c0ctuSyeVnCttJMzkukL9TqyF4s/6XRstWirSWaw JxRLKH6Zjo/FaKsshYKf8gBkAaddvpl3pO0gmUYbqmpQ3xDEYlhCeieXS5MkockQ 1sj2xYdB1xO0ExzfiCiscUKjUFy+mdzUsUutafuZ+gbHog1CN/ccZCkxcBa5IFCH ORrNjq9pYWlrxsEn6ApsG7JJbM2besW1PkdEoxak74z1senh36m5jQvVjA3U4xq1 wwylxadmmJaJHzeiLfb7G1ZRjZTsB7fyYxqDzMVul6o9BSwO/1XsIAnV1uuITAQY EQIADAUCOe70kgUJA8JnAAAKCRCoTtronIAKyksiAJsFB3/77SkH3JlYOGrEe1Ol 0JdGwACeKTttgeVPFB+iGJdiwQlxasOfuXyITAQYEQIADAUCPGqpWQUJCgCCxwAK CRCoTtronIAKyofBAKCSZM2UFyta/fe9WgITK9I5hbxxtQCfX+0ar2CZmSknn3co SPihn1+OBNyZAQ0DNuEtBAAAAQgAoCRcd7SVZEFcumffyEwfLTcXQjhKzOahzxpo omuF+HIyU4AGq+SU8sTZ/1SsjhdzzrSAfv1lETACA+3SmLr5KV40Us1w0UC64cwt A46xowVq1vMlH2Lib+V/qr3b1hE67nMHjysECVx9Ob4gFuKNoR2eqnAaJvjnAT8J /LoUC20EdCHUqn6v+M9t/WZgC+WNR8cq69uDy3YQhDP/nIan6fm2uf2kSV9A7ZxE GrwsWl/WX5Q/sQqMWaU6r4az98X3z90/cN+eJJ3vwtA+rm+nxEvyev+jaLuOQBDf ebh/XA4FZ35xmi+spdiVeJH4F/ubaGlmj7+wDOF3suYAPSXT2QAFEbQlU3VTRSBT ZWN1cml0eSBUZWFtIDxzZWN1cml0eUBzdXNlLmRlPokBFQMFEDbhLUfkWLKHsco8 RQEBVw4H/1vIdiOLX/7hdzYaG9crQVIk3QwaB5eBbjvLEMvuCZHiY2COUg5QdmPQ 8SlWNZ6k4nu1BLcv2g/pymPUWP9fG4tuSnlUJDrWGm3nhyhAC9iudP2u1YQY37Gb B6NPVaZiYMnEb4QYFcqv5c/r2ghSXUTYk7etd6SW6WCOpEqizhx1cqDKNZnsI/1X 11pFcO2N7rc6byDBJ1T+cK+F1Ehan9XBt/shryJmv04nli5CXQMEbiqYYMOu8iaA 8AWRgXPCWqhyGhcVD3LRhUJXjUOdH4ZiHCXaoF3zVPxpeGKEQY8iBrDeDyB3wHmj qY9WCX6cmogGQRgYG6yJqDalLqrDOdmJARUDBRA24S0Ed7LmAD0l09kBAW04B/4p WH3f1vQn3i6/+SmDjGzUu2GWGq6Fsdwo2hVM2ym6CILeow/K9JfhdwGvY8LRxWRL hn09j2IJ9P7H1Yz3qDf10AX6V7YILHtchKT1dcngCkTLmDgC4rs1iAAl3f089sRG BafGPGKv2DQjHfR1LfRtbf0P7c09Tkej1MP8HtQMW9hPkBYeXcwbCjdrVGFOzqx+ AvvJDdT6a+oyRMTFlvmZ83UV5pgoyimgjhWnM1V4bFBYjPrtWMkdXJSUXbR6Q7Pi RZWCzGRzwbaxqpl3rK/YTCphOLwEMB27B4/fcqtBzgoMOiaZA0M5fFoo54KgRIh0 zinsSx2OrWgvSiLEXXYKiEYEEBECAAYFAjseYcMACgkQnkDjEAAKq6ROVACgjhDM /3KM+iFjs5QXsnd4oFPOnbkAnjYGa1J3em+bmV2aiCdYXdOuGn4ZiQCVAwUQN7c7 whaQN/7O/JIVAQEB+QP/cYblSAmPXxSFiaHWB+MiUNw8B6ozBLK0QcMQ2YcL6+Vl D+nSZP20+Ja2nfiKjnibCv5ss83yXoHkYk2Rsa8foz6Y7tHwuPiccvqnIC/c9Cvz dbIsdxpfsi0qWPfvX/jLMpXqqnPjdIZErgxpwujas1n9016PuXA8K3MJwVjCqSKI RgQQEQIABgUCOhpCpAAKCRDHUqoysN/3gCt7AJ9adNQMbmA1iSYcbhtgvx9ByLPI DgCfZ5Wj+f7cnYpFZI6GkAyyczG09sE= =LRKC - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iQEVAwUBP7o6Lney5gA9JdPZAQEtlAgAkgmF1N4phGHJiuWFOImYfObmzA/NWvG8 a7MdiWzoduVdrTtByzlBqRhxZyEdtGtfHngrMuj1pKhWrZK8uOqiYx6wIWqpfq0o 0P/wt5XnLAVQNpfm3CvqoC546bw/Xtt8LL7epsGgl2YnsAIj1Nn5qF28TBOArleB p/O2DavFGx+ASMQSfMNrRMp65chQWwaSypWk8AZBIwD+dqELQ06BeTSuBNix10vJ 37BMQOC5HUdkfx8p/YE6NShXErGANLHOcJBQKlg+5V+1WEbDWZ7Urpa0Sqi0zWTh WLa20xUpp6NfVMvhCqeCY7zdA35LNiGFkaU/O9+goMygBDzihdS5Ig== =mL8i -----END PGP SIGNATURE----- Bye, Thomas -- Thomas Biege <thomas(a)suse.de>, SUSE LINUX AG, 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 83 -- ... stay with me, save and ignorant, go back to sleep... - Maynard James Keenan

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SUSE Security Announcement: hylafax (SuSE-SA:2003:045)
by Sebastian Krahmer 10 Nov '03

10 Nov '03

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: hylafax Announcement-ID: SuSE-SA:2003:045 Date: Mon Nov 10 15:00:00 CET 2003 Affected products: 7.3, 8.0, 8.1, 8.2, 9.0 SuSE Linux Enterprise Server 7 SuSE Linux Standard Server 8 SuSE Linux Desktop 1.0 SuSE Linux Office Server Vulnerability Type: remote code execution Severity (1-10): 5 SUSE default package: No Cross References: CAN-2003-0886 http://www.hylafax.org Content of this advisory: 1) security vulnerability resolved: Format bug condition in hfaxd. problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - ethereal - KDE - sane - ircd - mc - apache1/2 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information Hylafax is an Open Source fax server which allows sharing of fax equipment among computers by offering its service to clients by a protocol similar to FTP. The SuSE Security Team found a format bug condition during a code review of the hfaxd server. It allows remote attackers to execute arbitrary code as root. However, the bug can not be triggered in hylafax' default configuration. The "capi4hylafax" packages also need to be updated as a dependency where they are available. After the update has been successfully applied the hfaxd server has to be restarted by issuing the following command as root: /etc/rc.d/hylafax restart 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 -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. Intel i386 Platform: SuSE-9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/hylafax-4.1.7-67.i586.… 598081f0d8518014c122466549d3aee2 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/capi4hylafax-4.1.7-67.… b440a0ac3debb15af86c55ce9648a0c9 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/hylafax-4.1.7-67.i586.… b133d6a01100c51769edfe73842f21e5 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/capi4hylafax-4.1.7-67.… 48b02652d3efd052a99fe45346a40533 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/hylafax-4.1.7-67.src.rpm 44b246480b629ee9659ff2360999f4be SuSE-8.2: ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/hylafax-4.1.5-190.i586… a17a36e3d9779aaddc074e634c1d16c2 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/capi4hylafax-4.1.5-190… f016a370c9428aaca1a4393e3fb1fa6c patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/hylafax-4.1.5-190.i586… f9be5873c7f8abaae23494f98463b451 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/capi4hylafax-4.1.5-190… 715001c063280b3ff8c3ec9c918776b9 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/hylafax-4.1.5-190.src.r… cdf6cf2e9ad8e9f96a0a76ba03921c5a SuSE-8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/hylafax-4.1.3-145.i586… 85ffa634af490894d049c2c350bd5637 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/capi4hylafax-4.1.3-145… c3766b389e79820e88375127ce47246f patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/hylafax-4.1.3-145.i586… f6afb37c81542e75da229db6cd1f9571 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/capi4hylafax-4.1.3-145… e3f1e42ab4a12d056ad440e4607214c9 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/hylafax-4.1.3-145.src.r… 6babcf169ecf60cbfc83a3f8575cdf3e SuSE-8.0: ftp://ftp.suse.com/pub/suse/i386/update/8.0/n4/hylafax-4.1-303.i386.rpm e4492b144902043a38bfd71dbb683b23 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/n4/hylafax-4.1-303.i386.patch.r… 02f80c2b8b28d176bbba8a6dccda4dce source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/hylafax-4.1-303.src.rpm c79d4be78cca347d5ecded4c6029f2b2 SuSE-7.3: ftp://ftp.suse.com/pub/suse/i386/update/7.3/n3/hylafax-4.1-303.i386.rpm b42d4ff0c43cec7e09fe4c1bbf5c8226 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/hylafax-4.1-303.src.rpm 8bdce70f21a0362882947a1d4de760ae Sparc Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n3/hylafax-4.1-122.sparc.rpm fa187f99f0a25df1815445dbbb6a0abe source rpm(s): ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/hylafax-4.1-122.src.rpm 227353e1b80121f3ccfabc7fb888a485 PPC Power PC Platform: SuSE-7.3: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n3/hylafax-4.1-206.ppc.rpm 4388fa7fe1aa5173e3d33bdf1c477349 source rpm(s): ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/hylafax-4.1-206.src.rpm a95fd798a47396a077d7690a3e62986b ______________________________________________________________________________ 2) Pending vulnerabilities in SUSE Distributions and Workarounds: - ethereal A new official version of ethereal, a network traffic analyzer, was released to fix various security-related problems. An update package is currently being tested and will be released as soon as possible. - KDE New KDE packages are currently being tested. These packages fixes several vulnerabilities: + remote root compromise (CAN-2003-0690) + weak cookies (CAN-2003-0692) + SSL man-in-the-middle attack + information leak through HTML-referrer (CAN-2003-0459) The packages will be release as soon as testing is finished. - sane The scanner service sane of SuSE Linux 7.3-8.1 is vulnerable to a remote denial-of-service attack. This attack can even be triggered if the attackers host is not listed in the saned.conf file. The packages are currently tested and will be release as soon as possible. - ircd The Internet Relay Chat daemon is vulnerable to a remote denial-of- service attack. The attack can be triggered by irc clients directly connected to the daemon. The packages are currently tested and will be release as soon as possible. - mc By using a special combination of links in archive-files it is possible to execute arbitrary commands while mc tries to open it in its VFS. The packages are currently tested and will be release as soon as possible. - apache1/2 The widely used HTTP server apache has several security vulnerabilities: - locally exploitable buffer overflow in the regular expression code. The attacker must be able to modify .htaccess or httpd.conf. (affects: mod_alias and mod_rewrite) - under some circumstances mod_cgid will output its data to the wrong client (affects: apache2) ______________________________________________________________________________ 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 un-installed 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 top-level 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 announcements 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> or <security(a)suse.de>. The <security(a)suse.de> 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 clear-text signature shows proof of the authenticity of the text. SUSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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