October 2005 - openSUSE Security Announce

SUSE Security Announcement: wget/curl overflow in NTLM authentication
by Marcus Meissner 24 Oct '05

24 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: curl, wget Announcement ID: SUSE-SA:2005:063 Date: Mon, 24 Oct 2005 16:00:00 +0000 Affected Products: SUSE LINUX 10.0 SUSE LINUX 9.3 SUSE LINUX 9.2 SUSE LINUX 9.1 SUSE Linux Enterprise Server 9 Novell Linux Desktop 9 Open Enterprise Server Vulnerability Type: remote code execution Severity (1-10): 7 SUSE Default Package: yes Cross-References: CVE-2005-3185 Content of This Advisory: 1) Security Vulnerability Resolved: stack based buffer overflow in NTLM authentication Problem Description 2) Solution or Work-Around 3) Special Instructions and Notes 4) Package Location and Checksums 5) Pending Vulnerabilities, Solutions, and Work-Arounds: See SUSE Security Summary Report. 6) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Problem Description and Brief Discussion This update fixes a stack-based buffer overflow in the NTLM authentication code used by the file download tools/libraries curl and wget that can be triggered by using a long user or domain name (also works with HTTP redirects). By exploiting this bug by using a malicious server an attacker may be able to execute arbitrary code with the privileges of the entity running the process locally. (CVE-2005-3185) This affects both curl/libcurl and wget >= 1.10. wget copied the code from libcurl, making this effectively the same problem. 2) Solution or Work-Around There is no known workaround, please install the update packages. 3) Special Instructions and Notes Please close and restart all running instances of programs using libcurl after the update. 4) Package Location and Checksums The preferred method for installing security updates is to use the YaST Online Update (YOU) tool. YOU detects which updates are required and automatically performs the necessary steps to verify and install them. Alternatively, download the update packages for your distribution manually and verify their integrity by the methods listed in Section 6 of this announcement. Then install the packages using the command rpm -Fhv <file.rpm> to apply the update, replacing <file.rpm> with the filename of the downloaded RPM package. x86 Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/compat-curl2-7.11.0-7… 8f5ea41e7b4e80798c960790bb93e603 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/curl-7.14.0-2.2.i586.… 8e59e94e8745f0916ed00a7040d4e597 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/wget-1.10.1-2.2.i586.… 2a91b99e5adfd78b2e9c6a3b03bcc67d SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/compat-curl2-7.11.0-6.… dc1b2e8dc509adca503b7f2e7724be49 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/curl-7.13.0-5.2.i586.r… 937855b131da29025f48cab5880a91ea ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/wget-1.10-1.3.i586.rpm 556ba3000c278fecfec9c24b1b5ce44f SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/compat-curl2-7.11.0-4.… 2b21dc3b9877f45602191cc33c695734 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/curl-7.12.0-2.4.i586.r… 77802b5fb55775fd00b1e7e71cb03aab SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/curl-7.11.0-39.9.i586.… 8f18c55e56f560e641173b7ca96a13a6 ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/i586/curl-32bit-9.1-20051… 07b00ace15bc16b4e6ee878cb4703f34 Power PC Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/compat-curl2-7.11.0-7.… b69c93ed024d1887cb1fafa9140c7235 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/curl-7.14.0-2.2.ppc.rpm 1102f6dd51867fb06921e1b35354821d ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/wget-1.10.1-2.2.ppc.rpm ba717462ca2644628296cb473f228926 x86-64 Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/compat-curl2-32bit-… e42d1a8642003893cc2656effc2befae ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/compat-curl2-7.11.0… f29e8a213abc2a6df3c514849dd58f45 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/curl-32bit-7.14.0-2… 531e4e3a333cd7a869bce42d4f284c34 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/curl-7.14.0-2.2.x86… d11fd9298ca5a0d6009810afc02ffa00 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/wget-1.10.1-2.2.x86… 4025598d1a4d5c1f3bfb288df9ba62e0 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/compat-curl2-32bit-9… 8064b387585923ca8bf897294d6e0750 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/compat-curl2-7.11.0-… c6174cc85a1a8a7ae0aef33703b255ab ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/curl-32bit-9.3-7.1.x… d4da6969e3c7c08c2387bf2f491ae6b2 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/curl-7.13.0-5.2.x86_… d6db8fa9847c74194db4b11508aa81e5 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/wget-1.10-1.3.x86_64… 62373d0f58db04c85d6d558002b61439 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/compat-curl2-32bit-9… 8176f04bcc6b8a5b5e6730570d71e1dc ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/compat-curl2-7.11.0-… 77ca0f684608cd05d6680b71a60f3d2b ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/curl-7.12.0-2.4.x86_… 225eaed129a89f522099a4dd05fbd92f SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/curl-7.11.0-39.9.x… c7e53c0f5b9e176ea517b2cd6e212b7b Sources: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/compat-curl2-7.11.0-7.… dd327d44a1e34dc62557d731191d8eaa ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/curl-7.14.0-2.2.src.rpm 501302472341f049f32c26158857afe4 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/wget-1.10.1-2.2.src.rpm 620602e6c0d6745278570b049dc62d6f SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/compat-curl2-7.11.0-6.2… f28644961a98a391fcd4f9c220d95976 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/curl-7.13.0-5.2.src.rpm 115bbe666fc6d170f0209bf08d415e94 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/wget-1.10-1.3.src.rpm 201a3d45868f65590bb78bb80f40c1f5 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/compat-curl2-7.11.0-4.4… 9c3f454a7d31bddee04df39a6b10052c ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/curl-7.12.0-2.4.src.rpm f5249c9853905e77323c6febfe319809 SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/curl-7.11.0-39.9.src.rpm c64049955adb7067312b8716e61e2819 ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/curl-7.11.0-39.9.src.… 9bb9bd0870ab5a6a76e5da583323ca98 Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/a4b05b41f1d218a… http://portal.suse.com/psdb/a4b05b41f1d218a2680342fec83ddb5d.html ______________________________________________________________________________ 5) Pending Vulnerabilities, Solutions, and Work-Arounds: See SUSE Security Summary Report. ______________________________________________________________________________ 6) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file where you saved the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and the integrity of a package needs to be verified to ensure that it has not been tampered with. 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) Using the internal gpg signatures of the rpm package 2) MD5 checksums as provided in this announcement 1) The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and at the end of this announcement. 2) If you need an alternative means of verification, use the md5sum command to verify the authenticity of the packages. Execute the command md5sum <filename.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 SUSE security announcement. Because the announcement containing the checksums is cryptographically signed (by security(a)suse.de) the checksums show proof of the authenticity of the package if the signature of the announcement is valid. Note that the md5 sums published in the SUSE Security Announcements are valid for the respective packages only. Newer versions of these packages cannot be verified. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SUSE Security Announcement: permissions (SUSE-SA:2005:062)
by Ludwig Nussel 24 Oct '05

24 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: permissions Announcement ID: SUSE-SA:2005:062 Date: Mon, 24 Oct 2005 08:00:00 +0000 Affected Products: SUSE LINUX 10.0 SUSE LINUX 9.3 SUSE LINUX 9.2 SUSE LINUX 9.1 SuSE Linux 9.0 SuSE Linux Desktop 1.0 SuSE Linux Enterprise Server 8 SUSE SLES 9 UnitedLinux 1.0 Vulnerability Type: information disclosure Severity (1-10): 4 SUSE Default Package: yes Cross-References: - Content of This Advisory: 1) Security Vulnerability Resolved: information disclosure via permissions package Problem Description 2) Solution or Work-Around 3) Special Instructions and Notes 4) Package Location and Checksums 5) Pending Vulnerabilities, Solutions, and Work-Arounds: - See SUSE Security Summary Report 6) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Problem Description and Brief Discussion SUSE LINUX ships with three pre defined sets of permissions, 'easy', 'secure' and 'paranoid'. The chkstat program contained in the permissions package is used to set those permissions to the chosen level. Level 'easy' which is the default allows some world writeable directories. /usr/src/packages/RPMS and subdirectories is among them. To prevent users from playing tricks in there e.g. linking to /etc/shadow chkstat doesn't touch symlinks or files with an hardlink count != 1. Stefan Nordhausen discovered a way to trick this check. To gain access to e.g. /etc/shadow a malicious user has to place a hardlink to that file at a place that is modified by chkstat. chkstat will not touch the file because it has a hardlink count of two. However, if the administrator modifies the user database the original /etc/shadow gets deleted and replaced by a new one. That means the hardlink count of the file created by the malicious user drops to one. At this point chkstat will modify the file's permissions so anyone can read it. So it's technically impossible for chkstat to modify permissions of files in world writeable directories in a secure way. One such world writeable directoy in level 'easy' is /usr/src/packages/RPMS. Only subdirectories need to be adjusted in this case. Since normal users cannot create hard links to directories the problem can be solved by telling chkstat to not accept regular files. Another problematic directory is /var/games. Only members of group 'games' may write to it but it's likely that games with setgid 'games' are exploitable to allow user to gain group 'games' membership. The updated permissions package now tells chkstat when to only accept directories and no longer touches anything below /var/games to solve the described problems. On SUSE Linux 9.0 xmcd contained world writeable directories that suffered from the same problems. Updated xmcd packages for SUSE Linux 9.0 are therefore provided as well. We like to thank Stefan Nordhausen for pointing out the problems. 2) Solution or Work-Around In permissions level 'secure' no games are setgid 'games' and /usr/src/packages is not world writeable. You are safe if you switched to that level before any potentially malicious users could log in. 3) Special Instructions and Notes None 4) Package Location and Checksums The preferred method for installing security updates is to use the YaST Online Update (YOU) tool. YOU detects which updates are required and automatically performs the necessary steps to verify and install them. Alternatively, download the update packages for your distribution manually and verify their integrity by the methods listed in Section 6 of this announcement. Then install the packages using the command rpm -Fhv <file.rpm> to apply the update, replacing <file.rpm> with the filename of the downloaded RPM package. x86 Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/filesystem-10.0-4.2.i… 5f634cb4cd45ad3283e6055c3794ecff ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/permissions-2005.10.2… 7e9beef0e8df0ba419ff64ac96ad57e1 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/permissions-2005.10.20… 216afa8469276198015e5fff177580d2 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/permissions-2005.10.20… 3d61d27c7bf81889a321972ac12dcaab SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/permissions-2005.10.20… 72d9a0b5b0b750fb656aa54eb7c6ebdd SuSE Linux 9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/permissions-2005.10.20… cf8c022048e93fc6d159913ad7824e6a ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/xmcd-3.0.2-552.i586.rpm f3e82cf342c45ab46fca16c98587b22d Power PC Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/filesystem-10.0-4.2.pp… f0077c15af6a95edbd7aa25055668967 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/permissions-2005.10.20… 7f6552f5450b98821912c8703c580b38 x86-64 Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/filesystem-10.0-4.2… 214b7d7fc6dfdac3e07eff2ad4abf0e9 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/permissions-2005.10… 7b15cb94762ae6bc1cd7e441a08c39b4 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/permissions-2005.10.… 0d11d64965eee2cefeb56edfe258fee4 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/permissions-2005.10.… 4f2373ed4a93e3974b919e595a9490b7 SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/permissions-2005.1… 3ca12f4aae9b7a1b484e6a0e4f8f658d SuSE Linux 9.0: ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/permissions-2005.1… 853503b8868c1d2a34d05aaf6824cf83 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/xmcd-3.0.2-552.x86… fd95ac5dd3980af5308abe7062849149 Sources: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/filesystem-10.0-4.2.sr… 1784328035be5507b20737a2edfce8d8 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/permissions-2005.10.20… 0fc7ffe7a9688f04c916c50709db08da SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/permissions-2005.10.20-… 0a856cadf3b65db9434f20203413aba3 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/permissions-2005.10.20-… 57c3240513c9861634e79547df4f8cf0 SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/permissions-2005.10.20-… b47b5e76f759227d325a33dbbcb5ae96 ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/permissions-2005.10.2… f98fa35639b7d118e6aed1ecb99c4cbb SuSE Linux 9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/permissions-2005.10.20-… 8fa2759f6d2012aee4571e5830ea26eb ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/xmcd-3.0.2-552.src.rpm 44f64e89f871fd07bd6291d88277b327 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/permissions-2005.10.2… 48857a183ff120bc39ebb280eaca8764 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/xmcd-3.0.2-552.src.rpm 9e961bdfaf2c935857eb86bd64b74c83 Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/f91efcfdcc1e3f9… http://portal.suse.com/psdb/f91efcfdcc1e3f92b382d1725439765d.html http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/5811be293ad9fa3… http://portal.suse.com/psdb/5811be293ad9fa388c6d368261df375d.html ______________________________________________________________________________ 5) Pending Vulnerabilities, Solutions, and Work-Arounds: - See SUSE Security Summary Report ______________________________________________________________________________ 6) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file where you saved the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and the integrity of a package needs to be verified to ensure that it has not been tampered with. 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) Using the internal gpg signatures of the rpm package 2) MD5 checksums as provided in this announcement 1) The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and at the end of this announcement. 2) If you need an alternative means of verification, use the md5sum command to verify the authenticity of the packages. Execute the command md5sum <filename.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 SUSE security announcement. Because the announcement containing the checksums is cryptographically signed (by security(a)suse.de) the checksums show proof of the authenticity of the package if the signature of the announcement is valid. Note that the md5 sums published in the SUSE Security Announcements are valid for the respective packages only. Newer versions of these packages cannot be verified. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SUSE Security Summary Report SUSE-SR:2005:024
by Marcus Meissner 21 Oct '05

21 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Summary Report Announcement ID: SUSE-SR:2005:024 Date: Fri, 21 Oct 2005 11:00:000000 Cross-References: CVE-2005-3042, CVE-2005-2967, CVE-2005-2978, CVE-2005-3178, CVE-2005-2177 Content of this advisory: 1) Solved Security Vulnerabilities: - net-snmp stream based denial of service attack - several buffer overflows in xloadimage - netpbm buffer overflow in pnmtopng - xine-lib format string problem - webmin pam module remote execution 2) Pending Vulnerabilities, Solutions, and Work-Arounds: - snort remote problem - lynx buffer overflow - curl / wget NTLM authentication overflows - squid SSL crashes on SUSE Linux 9.0 3) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Solved Security Vulnerabilities To avoid flooding mailing lists with SUSE Security Announcements for minor issues, SUSE Security releases weekly summary reports for the low profile vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums or download URLs like the SUSE Security Announcements that are released for more severe vulnerabilities. Fixed packages for the following incidents are already available on our FTP server and via the YaST Online Update. - net-snmp stream based denial of service attack This update fixes a denial of service problem in net-snmp when using stream based TCP/IP connections (CVE-2005-2177). For SUSE Linux 9.1 following additional non-security bugs were fixed: - Fixed incorrect pointer size on 64bit systems. - Fixed default agent address for SNMPv1 traps This problem affects SUSE Linux 9.1 up to 10.0 and SUSE Linux Enterprise Server 9. NOTE: Due to a bug in the rpm daemon restart scripts this update will start the net-snmp daemon even if it was not enabled before. If you are not using net-snmp, run: /usr/sbin/rcsnmpd stop after the upgrade. - Several buffer overflows in xloadimage This update fixes several buffer overflows in xli which can be exploited by malformed image files to execute arbitrary code. (CVE-2005-3178) This problem affects all SUSE Linux distributions. - netpbm buffer overflow in pnmtopng A buffer overflow in pnmtopng in the netpbm suite was fixed that may be used to execute arbitrary code while processing malformed PNM image files. (CVE-2005-2978) This update affects all SUSE Linux based products. - xine-lib format string problem When you use xine or gxine to play a CD, the programs will connect to a CDDB server to retrieve the record's artist/band and title as well as the song titles. The programs write this information to a cache file, and the code in xine-lib that performs this action suffers from a format string security bug, allowing remote execution of arbitrary code. This patch fixes this problem. (CVE-2005-2967) This problem affects all SUSE Linux distributions including "xine-lib". - webmin PAM module remote execution If Webmin or Usermin is configured to use full PAM conversations, it is vulnerable to the remote execution of arbitrary code with root privileges. Keigo Yamazaki discovered that the miniserv.pl web server, used in both Webmin and Usermin, does not properly validate authentication credentials before sending them to the PAM (Pluggable Authentication Modules) authentication process. This problem is tracked by the Mitre CVE ID CVE-2005-3042, and affects only SUSE Linux 9.0 and 9.1. ______________________________________________________________________________ 2) Pending Vulnerabilities, Solutions, and Work-Arounds - snort remote problem The network intrusion detection system snort has a remotely exploitable problem in the back orifice dissector code. We are working on a fix. - lynx buffer overflow The text based web browser lynx has a buffer overflow in the handling of long NNTP URLs. We are working on updates for this issue. - curl / wget NTLM authentication overflows A buffer overflow in the NTLM authentication handling of curl and newer wget versions was found. We are working on updates for this problem - squid SSL crashes on SUSE Linux 9.0 The last security update of Squid on SUSE Linux 9.0 suffers from stability problems in the https handling. We are working on isolating the problem. ______________________________________________________________________________ 3) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file containing the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and integrity of a package needs to be verified to ensure that it has not been tampered with. The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and included at the end of this announcement. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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1 0

SUSE Security Announcement: openSSL protocol downgrade attack (SUSE-SA:2005:061)
by Marcus Meissner 19 Oct '05

19 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: openssl Announcement ID: SUSE-SA:2005:061 Date: Wed, 19 Oct 2005 12:00:00 +0000 Affected Products: SUSE LINUX 10.0 SuSE Linux 9.0 SUSE LINUX 9.1 SUSE LINUX 9.2 SUSE LINUX 9.3 SuSE Linux Desktop 1.0 SuSE Linux Enterprise Server 8 SUSE Linux Enterprise Server 9 UnitedLinux 1.0 Novell Linux Desktop 9 Open Enterprise Server Vulnerability Type: protocol downgrade attack Severity (1-10): 7 SUSE Default Package: yes Cross-References: CAN-2005-2969 Content of This Advisory: 1) Security Vulnerability Resolved: openssl protocol downgrading attack Problem Description 2) Solution or Work-Around 3) Special Instructions and Notes 4) Package Location and Checksums 5) Pending Vulnerabilities, Solutions, and Work-Arounds: See SUSE Security Summary Report. 6) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Problem Description and Brief Discussion The openssl cryptographic libraries have been updated to fix a protocol downgrading attack which allows a man-in-the-middle attacker to force the usage of SSLv2. This happens due to the work-around code of SSL_OP_MSIE_SSLV2_RSA_PADDING which is included in SSL_OP_ALL (which is commonly used in applications). (CAN-2005-2969) Additionally this update adds the Geotrusts Equifax Root1 CA certificate to allow correct certification against Novell Inc. websites and services. The same CA is already included in Mozilla, KDE, and curl, which use separate certificate stores. 2) Solution or Work-Around Please install the updated packages. A work-around would be to disable SSL v2 support in the applications. 3) Special Instructions and Notes Restart all services using SSL communication. 4) Package Location and Checksums The preferred method for installing security updates is to use the YaST Online Update (YOU) tool. YOU detects which updates are required and automatically performs the necessary steps to verify and install them. Alternatively, download the update packages for your distribution manually and verify their integrity by the methods listed in Section 6 of this announcement. Then install the packages using the command rpm -Fhv <file.rpm> to apply the update, replacing <file.rpm> with the filename of the downloaded RPM package. x86 Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/openssl-0.9.7g-2.2.i5… e3327b60cd67e05c69fbad39787dccc9 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/openssl-devel-0.9.7g-… 24865cb7cc369352f0be0f6681c0337e SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/openssl-0.9.7e-3.2.i58… 83537e24205a2add698e1b3bdabd47da ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/openssl-devel-0.9.7e-3… 24b05ddf75b1b1c1630f489c73009782 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/openssl-0.9.7d-25.2.i5… eb5845c52c418f6c4dd54922854f282f ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/openssl-devel-0.9.7d-2… 3489d04736d818da68ef83d148aadddd SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/openssl-0.9.7d-15.15.3… 44fa57fcbdf8f3889bacb9cff6b1a09f ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/openssl-devel-0.9.7d-1… 1faa73fc6dac13b05e40f5714f88b226 ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/i586/openssl-32bit-9.1-20… d4b72038c4552fcba9fa11b554af2eac ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/i586/openssl-devel-32bit-… 6b4b1eeaa0592fd7a92816ceb4658494 SuSE Linux 9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/openssl-0.9.7b-135.i58… cf17f027255eabe00df743ead5052f1a ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/openssl-devel-0.9.7b-1… 9ffd642f59150064dbb04644990d22b8 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/i586/openssl-32bit-9.0-5.… b411a2e07c627174edf3e59c36e2afea ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/i586/openssl-devel-32bit-… 9dc0fcfe4741f1d8d4a173bc850d9e7d Power PC Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/openssl-0.9.7g-2.2.ppc… b0e8a0c17fbd8f49cfdbac754fd3c0ab ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/openssl-devel-0.9.7g-2… 58cf5958a728dcaa51948c65b643e384 x86-64 Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/openssl-0.9.7g-2.2.… c3936949ff35609e24aa3ff916660c7b ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/openssl-32bit-0.9.7… fd553f55be7b1853e6094493da3e07e6 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/openssl-devel-0.9.7… 665de86c4ae6b403f7e89b911b671ce6 ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/openssl-devel-32bit… b141bae445d418406c0287627746aa34 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/openssl-0.9.7e-3.2.x… 3133ea05502fd5ebdecd906dbb751ff8 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/openssl-32bit-9.3-7.… 025292747aed0b549b21dd6286afa4ee ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/openssl-devel-0.9.7e… 9b50c10172a3cffd6e5095dc6487382f ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/openssl-devel-32bit-… ab9d47dc1d0ef66219ed6363c2d1234f SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/openssl-0.9.7d-25.2.… 265519514837b9cc0a5e185b963e58c8 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/openssl-32bit-9.2-20… 28376541a6f7cb041cafb39eab6e669f ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/openssl-devel-0.9.7d… df48531e0db3877bda1f8e631c96440e ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/openssl-devel-32bit-… c1012b7d66aab61fc5ba932ce3b3ddd5 SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/openssl-0.9.7d-15.… 97cbb139fac0a59b7e1ab5590cdd7911 ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/openssl-devel-0.9.… 4807e04cddbf761eb5da4fc1979822e5 SuSE Linux 9.0: ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/openssl-0.9.7b-135… 96767379ee26179d81231112da76ebc4 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/openssl-devel-0.9.… eaacfac00c7fe69bee685e427b908ede Sources: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/openssl-0.9.7g-2.2.src… 96f81c596120ea526f80925c928ba18d SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/openssl-0.9.7e-3.2.src.… 0e80ac579c04e13dc737c1efe57e1905 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/openssl-0.9.7d-25.2.src… a378099cce54b5660349de48228f97b9 SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/openssl-0.9.7d-15.15.3.… bd45e590bccf5bb6dfc24756bc5a857f ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/openssl-0.9.7d-15.15.… 94d6dfafd61ccd20355f92907ffb8a72 SuSE Linux 9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/openssl-0.9.7b-135.src.… af0b9e588250c2970687b518613e897a ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/openssl-0.9.7b-135.sr… 29afc1febd81c7765e56aefe0b083ebb Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/5ac94511860f4bb… http://portal.suse.com/psdb/5ac94511860f4bb76c8ce92f5791934b.html http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/66fe930899c74b0… http://portal.suse.com/psdb/66fe930899c74b0ad097886cced1db5c.html ______________________________________________________________________________ 5) Pending Vulnerabilities, Solutions, and Work-Arounds: See SUSE Security Summary Report. ______________________________________________________________________________ 6) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file where you saved the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and the integrity of a package needs to be verified to ensure that it has not been tampered with. 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) Using the internal gpg signatures of the rpm package 2) MD5 checksums as provided in this announcement 1) The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and at the end of this announcement. 2) If you need an alternative means of verification, use the md5sum command to verify the authenticity of the packages. Execute the command md5sum <filename.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 SUSE security announcement. Because the announcement containing the checksums is cryptographically signed (by security(a)suse.de) the checksums show proof of the authenticity of the package if the signature of the announcement is valid. Note that the md5 sums published in the SUSE Security Announcements are valid for the respective packages only. Newer versions of these packages cannot be verified. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SUSE Security Announcement: OpenWBEM (SUSE-SA:2005:060)
by Sebastian Krahmer 17 Oct '05

17 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: OpenWBEM Announcement ID: SUSE-SA:2005:060 Date: Mon, 17 Oct 2005 11:00:00 +0000 Affected Products: SUSE SLES 9 Open-Enterprise-Server 9 Vulnerability Type: remote code execution Severity (1-10): 8 SUSE Default Package: no Cross-References: Content of This Advisory: 1) Security Vulnerability Resolved: remotely exploitable buffer overflow Problem Description 2) Solution or Work-Around 3) Special Instructions and Notes 4) Package Location and Checksums 5) Pending Vulnerabilities, Solutions, and Work-Arounds: none 6) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Problem Description and Brief Discussion The SUSE Security Team performed a security review of important parts of the OpenWBEM system. During the audit, several integer wrap arounds and buffer overflows have been discovered and fixed. If exploited, they allow remote attackers to execute arbitrary code with root privileges. 2) Solution or Work-Around 3) Special Instructions and Notes After successfully installing the updates you have to issue the following command as root: /usr/sbin/rcowcimomd restart 4) Package Location and Checksums The preferred method for installing security updates is to use the YaST Online Update (YOU) tool. YOU detects which updates are required and automatically performs the necessary steps to verify and install them. Alternatively, download the update packages for your distribution manually and verify their integrity by the methods listed in Section 6 of this announcement. Then install the packages using the command rpm -Fhv <file.rpm> to apply the update, replacing <file.rpm> with the filename of the downloaded RPM package. Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/25258ab3ab19e06… http://portal.suse.com/psdb/25258ab3ab19e0642be41de4f518cee3.html ______________________________________________________________________________ 5) Pending Vulnerabilities, Solutions, and Work-Arounds: none ______________________________________________________________________________ 6) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file where you saved the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and the integrity of a package needs to be verified to ensure that it has not been tampered with. 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) Using the internal gpg signatures of the rpm package 2) MD5 checksums as provided in this announcement 1) The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and at the end of this announcement. 2) If you need an alternative means of verification, use the md5sum command to verify the authenticity of the packages. Execute the command md5sum <filename.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 SUSE security announcement. Because the announcement containing the checksums is cryptographically signed (by security(a)suse.de) the checksums show proof of the authenticity of the package if the signature of the announcement is valid. Note that the md5 sums published in the SUSE Security Announcements are valid for the respective packages only. Newer versions of these packages cannot be verified. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SUSE Security Summary Report SUSE-SR:2005:023
by Marcus Meissner 14 Oct '05

14 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Summary Report Announcement ID: SUSE-SR:2005:023 Date: Fri, 14 Oct 2005 12:00:00 +0000 Cross-References: CAN-2005-2495, CAN-2005-2933, CAN-2005-2960 CAN-2005-2964, CAN-2005-3011 Content of this advisory: 1) Solved Security Vulnerabilities: - imap-lib crashes in client library - texinfo temporary file handling fixes - cfengine temporary file handling fixes - abiword buffer overflow in RTF import filter - various vnc servers affected by the pixmap integer overflow 2) Pending Vulnerabilities, Solutions, and Work-Arounds: None listed. 3) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Solved Security Vulnerabilities To avoid flooding mailing lists with SUSE Security Announcements for minor issues, SUSE Security releases weekly summary reports for the low profile vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums or download URLs like the SUSE Security Announcements that are released for more severe vulnerabilities. Fixed packages for the following incidents are already available on our FTP server and via the YaST Online Update. - imap-lib crashes in client library The client part of the University of Washington IMAP implementation is prone to a buffer overflow while parsing mailbox names. This bug can probably be exploited by a remote attacker to execute arbitrary code with the privileges of the user running the affected mail client. (CAN-2005-2933). The 'imapd' that is included in the "imap" package itself is not affected by this problem. This problem affects all SUSE Linux based products. - texinfo temporary file handling fixes The handling of temporary files in the texinfo package was enhanced. Previous versions can be exploited by local users to overwrite arbitrary files. (CAN-2005-3011) This affects all SUSE Linux based products. - cfengine temporary file handling fixes This update of cfengine improves the handling of temporary files. This bug can be exploited locally and probably be used to escalate privileges. (CAN-2005-2960) This affects SUSE Linux 9.0 up to 10.0. - abiword buffer overflow in RTF import filter The Abiword word processor was updated to fix several buffer overflows that can be triggered by parsing malformed RTF documents (CAN-2005-2964). Thanks to Chris Evans. This affects SUSE Linux 9.0 (package name abiword2), SUSE Linux 9.1 up to 10.0 (package name abiword). - various vnc servers affected by the pixmap integer overflow Various VNC Servers were also affected by the integer overflow problem in the pixmap handling (CAN-2005-2495). An attacker may be able to exploit this bug to execute code remotely. SUSE Linux Enterprise Server 8, SUSE Linux Desktop 1 used the "vnc" package, newer products use the "XFree86-vnc" or "xorg-x11-vnc" packages. All SUSE Linux based products were affected and fixed packages were released. ______________________________________________________________________________ 2) Pending Vulnerabilities, Solutions, and Work-Arounds None listed. ______________________________________________________________________________ 3) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file containing the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and integrity of a package needs to be verified to ensure that it has not been tampered with. The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and included at the end of this announcement. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SUSE Security Announcement: RealPlayer format string problem (SUSE-SA:2005:059)
by Marcus Meissner 10 Oct '05

10 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: RealPlayer Announcement ID: SUSE-SA:2005:059 Date: Mon, 10 Oct 2005 12:00:00 +0000 Affected Products: Novell Linux Desktop 9 SUSE LINUX 10.0 SUSE LINUX 9.2 SUSE LINUX 9.3 Vulnerability Type: remote code execution Severity (1-10): 9 SUSE Default Package: yes Cross-References: CAN-2005-2710 Content of This Advisory: 1) Security Vulnerability Resolved: realplayer remote format string exploit Problem Description 2) Solution or Work-Around 3) Special Instructions and Notes 4) Package Location and Checksums 5) Pending Vulnerabilities, Solutions, and Work-Arounds: none 6) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Problem Description and Brief Discussion The following security issue in RealPlayer was fixed: - A format string bug in the RealPix (.rp) file format parser (CAN-2005-2710). This bug allowed remote attackers to execute arbitrary code by supplying a specially crafted file, e.g via Web page or E-Mail. Note that we no longer support RealPlayer on the following distributions for some time now: - SUSE Linux 9.1 - SUSE Linux 9.0 - SUSE Linux Desktop 1.0 On these distributions, please deinstall RealPlayer by running as root: rpm -e RealPlayer 2) Solution or Work-Around There is no known workaround, please install the update packages. 3) Special Instructions and Notes Please close and restart all running instances of RealPlayer after the update. 4) Package Location and Checksums The preferred method for installing security updates is to use the YaST Online Update (YOU) tool. YOU detects which updates are required and automatically performs the necessary steps to verify and install them. Alternatively, download the update packages for your distribution manually and verify their integrity by the methods listed in Section 6 of this announcement. Then install the packages using the command rpm -Fhv <file.rpm> to apply the update, replacing <file.rpm> with the filename of the downloaded RPM package. x86 Platform: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/RealPlayer-10.0.6-3.2… 5a2d014eb663522c853f3e4a8fe356d3 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/RealPlayer-10.0.6-1.4.… 1097667994e2fccae1502262fe7215ca SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/RealPlayer-10.0.6-1.4.… d98460b54af9378839a63c2b229547b8 Sources: SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/RealPlayer-10.0.6-3.2.… 25460c33b090cd6a7ddf93903172d125 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/RealPlayer-10.0.6-1.4.s… 83fccf7f9702cd9786d5f2ec69b4b7da SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/RealPlayer-10.0.6-1.4.s… d62dc63575a544018f9a6dbeffe00a85 ______________________________________________________________________________ 5) Pending Vulnerabilities, Solutions, and Work-Arounds: none ______________________________________________________________________________ 6) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file where you saved the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and the integrity of a package needs to be verified to ensure that it has not been tampered with. 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) Using the internal gpg signatures of the rpm package 2) MD5 checksums as provided in this announcement 1) The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and at the end of this announcement. 2) If you need an alternative means of verification, use the md5sum command to verify the authenticity of the packages. Execute the command md5sum <filename.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 SUSE security announcement. Because the announcement containing the checksums is cryptographically signed (by security(a)suse.de) the checksums show proof of the authenticity of the package if the signature of the announcement is valid. Note that the md5 sums published in the SUSE Security Announcements are valid for the respective packages only. Newer versions of these packages cannot be verified. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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SUSE Security Summary Report SUSE-SR:2005:022
by Marcus Meissner 07 Oct '05

07 Oct '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Summary Report Announcement ID: SUSE-SR:2005:022 Date: Fri, 07 Oct 2005 13:00:00 +0000 Cross-References: CAN-2005-2966 Content of this advisory: 1) Solved Security Vulnerabilities: - resmgr usb device restriction problems - liby2util problems with untrusted remote repositories - mediawiki edit history problems - powersave permission problems - bacula tmp race fixes - various user applications used LD_LIBRARY_PATH unsafely - dia svg import code execution 2) Pending Vulnerabilities, Solutions, and Work-Arounds: - none listed 3) Authenticity Verification and Additional Information ______________________________________________________________________________ 1) Solved Security Vulnerabilities To avoid flooding mailing lists with SUSE Security Announcements for minor issues, SUSE Security releases weekly summary reports for the low profile vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums or download URLs like the SUSE Security Announcements that are released for more severe vulnerabilities. Fixed packages for the following incidents are already available on our FTP server and via the YaST Online Update. - resmgr usb device restriction problems resmgr is the SUSE way of providing device access to logged in desktop users. The following security problems were fixed in resmgr: - By using alternate syntax for specifying USB devices instead of a /proc/bus/usb path one could bypass access control rules and open any USB device. - Class specific exclude rules did not match devices that set their class ID at interface level. Therefore the default exclude rules for HID and hub devices did not work on many devices. This would allow a local attacker (logged into another X session or text console with desktop rights) to snoop on USB human input devices like keyboard or mice of other users. This problem affects only SUSE Linux 9.2 and 9.3. - liby2util problems with untrusted remote repositories Rene "l00m" Fischer found two problem in the handling of YaST package repositories. - The remote repositories were copied with permissions and ownerships intact. If the remote repository was owned by a user or had problematic permissions, these ownership and permissions were copied over to the system. If these included world writable permissions local users could overwrite package meta files. This problem is not present when installing from CD or a correctly set up network source. - The YaST package handling had a buffer overflow which could be used by attackers having access to the meta data (for instance due to above permission problem) to potentially execute code. These problems have been fixed with this update. All SUSE Linux based products were affected by this problem. A problem appeared in the SUSE Linux 9.1 update due to a symbol mismatch caused by incompatible changes in SUSE Linux Enterprise Server 9 which were not correctly merged back to SUSE Linux 9.1. If you are using SUSE Linux 9.1 and can no longer start YaST package manager or online_update, please reinstall the liby2util RPM from the original CD by hand. - Mediawiki edit history problems A bug in mediawiki Wiki edit submission handling could cause corruption of the previous revision in the database if an abnormal URL was used, such as those used by some spam bots. This mediawiki update contains fixes up to MediaWiki version 1.4.10. SUSE Linux 9.3 and 10.0 are affected by this problem. - powersave permission problems The powersave interfaces allows logged in desktop users to control certain power management functions of the machine. A configuration problem of the powersave daemon in SUSE Linux 10.0 allowed any local user to control the powersave daemon, allowing him for instance to suspend the machine. Additionally some bugs were fixed: - When doing CPU frequency scaling, the nice factor was not considered correctly. - The patch also fixes a problem were an ACPI button press was not ignored after coming back from sleep and so the system shut down again. - If the haldaemon is not running, powersave opens dbus connections without closing them after wards. These bugs only affect SUSE Linux 10.0. - bacula tmp race fixes A fixed version of bacula was released that improves its handling of temporary files. Only SUSE Linux 10.0 is affected. - Various user applications used LD_LIBRARY_PATH unsafely Several user applications handle LD_LIBRARY_PATH unsafely. By just appending paths to LD_LIBRARY_PATH they caused the program to also search the current directory for shared libraries. In directories that contain network data those libraries could be injected into the respective application. We already released updates for following applications: - beagle for SUSE Linux 9.3 and 10.0. - tomboy for SUSE Linux 9.3 and 10.0. - liferea for SUSE Linux 10.0. - blam for SUSE Linux 9.3 and 10.0. - banshee for SUSE Linux 10.0. Fixes for more applications will be released. - dia svg import code execution This update of dia fixes a bug in the SVG import plugin which allows the execution of Python code. (CAN-2005-2966) This problem only affects SUSE Linux 9.3 and 10.0. ______________________________________________________________________________ 2) Pending Vulnerabilities, Solutions, and Work-Arounds none ______________________________________________________________________________ 3) Authenticity Verification and Additional Information - Announcement authenticity verification: SUSE security announcements are published via mailing lists and on Web sites. The authenticity and integrity of a SUSE security announcement is guaranteed by a cryptographic signature in each announcement. All SUSE security announcements are published with a valid signature. To verify the signature of the announcement, save it as text into a file and run the command gpg --verify <file> replacing <file> with the name of the file containing the announcement. The output for a valid signature looks like: gpg: Signature made <DATE> using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team <security(a)suse.de>" where <DATE> is replaced by the date the document was signed. If the security team's key is not contained in your key ring, you can import it from the first installation CD. To import the key, use the command gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc - Package authenticity verification: SUSE update packages are available on many mirror FTP servers all over the world. While this service is considered valuable and important to the free and open source software community, the authenticity and integrity of a package needs to be verified to ensure that it has not been tampered with. The internal 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, replacing <file.rpm> with the filename of the RPM package downloaded. The package is unmodified if it contains a valid signature from build(a)suse.de with the key ID 9C800ACA. This key is automatically imported into the RPM database (on RPMv4-based distributions) and the gpg key ring of 'root' during installation. You can also find it on the first installation CD and included at the end of this announcement. - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - General Linux and SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an e-mail 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 e-mail 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>. ===================================================================== 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, the clear text signature should show proof of the authenticity of the text. SUSE Linux Products GmbH provides no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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Defacement of several Novell websites
by Marcus Meissner 04 Oct '05

04 Oct '05

Hi, As you probably know, several Novell hosted web sites got defaced by a vandal on the weekend. The vandalized hosts wiki.novell.com, opensuse.org, and forge.novell.com are actually virtual hosts living on one machine, making this one affected machine. The intruder gained access to the system by exploiting a known vulnerability in the "Xoops" blog software installed on another virtual host on this system (www.novell.com/prblogs/) This software was not upgraded to the latest security fixed version. The host affected is fully separate from our RPM and security fix delivery machines, so the integrity of our distributions and update repositories was not affected. Sincerely, Marcus Meissner, SUSE Security Team

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