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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.1206 New pidgin packages fix arbitrary code execution 20 August 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: pidgin Publisher: Debian Operating System: Debian GNU/Linux 5 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2009-2694 Reference: ESB-2009.1197 Original Bulletin: http://www.debian.org/security/2009/dsa-1870 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - -------------------------------------------------------------------------- Debian Security Advisory DSA-1870-1 security@debian.org http://www.debian.org/security/ Nico Golde August 19th, 2009 http://www.debian.org/security/faq - - -------------------------------------------------------------------------- Package : pidgin Vulnerability : insufficient input validation Problem type : remote Debian-specific: no CVE ID : CVE-2009-2694 Federico Muttis discovered that libpurple, the shared library that adds support for various instant messaging networks to the pidgin IM client, is vulnerable to a heap-based buffer overflow. This issue exists because of an incomplete fix for CVE-2008-2927 and CVE-2009-1376. An attacker can exploit this by sending two consecutive SLP packets to a victim via MSN. The first packet is used to create an SLP message object with an offset of zero, the second packet then contains a crafted offset which hits the vulnerable code originally fixed in CVE-2008-2927 and CVE-2009-1376 and allows an attacker to execute arbitrary code. Note: Users with the "Allow only the users below" setting are not vulnerable to this attack. If you can't install the below updates you may want to set this via Tools->Privacy. For the stable distribution (lenny), this problem has been fixed in version 2.4.3-4lenny3. For the testing distribution (squeeze), this problem will be fixed soon. For the unstable distribution (sid), this problem has been fixed in version 2.5.9-1. We recommend that you upgrade your pidgin packages. Upgrade instructions - - -------------------- wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given below: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 5.0 alias lenny - - -------------------------------- Debian (stable) - - --------------- Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc. Source archives: http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3.orig.tar.gz Size/MD5 checksum: 13123610 d0e0bd218fbc67df8b2eca2f21fcd427 http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3.dsc Size/MD5 checksum: 1784 e9bc246ba4f0ca8dab1436d66bd00adb http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3.diff.gz Size/MD5 checksum: 67928 545981a43e8c1b905ea1adb0da9b1b4d Architecture independent packages: http://security.debian.org/pool/updates/main/p/pidgin/libpurple-bin_2.4.3-4lenny3_all.deb Size/MD5 checksum: 133552 d4adb0ff7da09da14d34f3ae9484ea94 http://security.debian.org/pool/updates/main/p/pidgin/pidgin-data_2.4.3-4lenny3_all.deb Size/MD5 checksum: 7018488 09b2f817c71774e2108b4366602f5dcf http://security.debian.org/pool/updates/main/p/pidgin/libpurple-dev_2.4.3-4lenny3_all.deb Size/MD5 checksum: 276890 dab9b30c46f9a2c03af02d381cb029cf http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dev_2.4.3-4lenny3_all.deb Size/MD5 checksum: 354146 291a984ea00f92d67a3d0b99040d7d72 http://security.debian.org/pool/updates/main/p/pidgin/finch-dev_2.4.3-4lenny3_all.deb Size/MD5 checksum: 159388 f73823fb36f1d0487cc29d0d71a7a471 alpha architecture (DEC Alpha) http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_alpha.deb Size/MD5 checksum: 369628 cd01f407199d1ca84f2502c4f4d169db http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_alpha.deb Size/MD5 checksum: 779192 fdb6b047a48f3c255fa13a329dc5fc35 http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_alpha.deb Size/MD5 checksum: 5545960 fe294dfeb4dd7ca7ff6e5636230c856c http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_alpha.deb Size/MD5 checksum: 1803004 81ef9e0af747f0b236b25b1407d38266 amd64 architecture (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_amd64.deb Size/MD5 checksum: 345894 4b31436a96b5834d8ebe3639b837093d http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_amd64.deb Size/MD5 checksum: 5668550 58b27242ababd545a49b080527cd8769 http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_amd64.deb Size/MD5 checksum: 722220 e249e5fb7581ec28a0f4e0a32fab3d2c http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_amd64.deb Size/MD5 checksum: 1706142 2f1f823ff5c26eb1cc67874633a6891d arm architecture (ARM) http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_arm.deb Size/MD5 checksum: 315182 d935ef53df9f333d0b2eb8d38e2bb753 http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_arm.deb Size/MD5 checksum: 655088 8631310cc8beb7902fef81b51af01fd8 http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_arm.deb Size/MD5 checksum: 1490226 cfe0d6727f4a9aa671a3413817fb11ae http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_arm.deb Size/MD5 checksum: 5348504 d1ef7ddf61f0e44f46c646e4f4add280 armel architecture (ARM EABI) http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_armel.deb Size/MD5 checksum: 5386792 c5d2643ba6bc47aa41de04b870bbca3d http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_armel.deb Size/MD5 checksum: 666444 507fd3b558360b054d67843f3dba2689 http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_armel.deb Size/MD5 checksum: 318828 fcaea331f126eb2329bf54d0c8df7269 http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_armel.deb Size/MD5 checksum: 1496868 1ac8d58c00019b1b0a3d742d4a02d074 hppa architecture (HP PA RISC) http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_hppa.deb Size/MD5 checksum: 361112 366c71f9035322402a6c0bae4fe4d8a0 http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_hppa.deb Size/MD5 checksum: 5489632 53fed112a1e8642c0f682fc29f361a4a http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_hppa.deb Size/MD5 checksum: 1827630 14a3a37c121b1e13c031f8894c5f4f64 http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_hppa.deb Size/MD5 checksum: 753796 d50a7d1ba32773f791872bce6305b92c i386 architecture (Intel ia32) http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_i386.deb Size/MD5 checksum: 1584144 54aeb3d38dd0cae7e486dab84a82cbb8 http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_i386.deb Size/MD5 checksum: 680948 8144b0b957e103cedd0a617e37a3feae http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_i386.deb Size/MD5 checksum: 326656 4d75eb89954a304b036d5f14e751f72a http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_i386.deb Size/MD5 checksum: 5374132 2640104cb54145afda5a685607a1e74c ia64 architecture (Intel ia64) http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_ia64.deb Size/MD5 checksum: 5223582 02aa16c2f23681d9123f0fe35e3414fd http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_ia64.deb Size/MD5 checksum: 434672 fcc166e5359603ec5a02953f36b30e33 http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_ia64.deb Size/MD5 checksum: 948114 38eb5dfe87ba4ffa01ace8cf7db745c4 http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_ia64.deb Size/MD5 checksum: 2194278 82db59131767124c1cef53a9ef03de9e mips architecture (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_mips.deb Size/MD5 checksum: 5655702 d2694b5874bccdc4bde1a2debf2f1ad7 http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_mips.deb Size/MD5 checksum: 653944 c39d08c1fe964baa5c1ff533432f7c4d http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_mips.deb Size/MD5 checksum: 1373212 9673d5480375e78dae3741b32615e112 http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_mips.deb Size/MD5 checksum: 318262 aaff22798d1a88aa2d2e04b24b9a7932 powerpc architecture (PowerPC) http://security.debian.org/pool/updates/main/p/pidgin/pidgin-dbg_2.4.3-4lenny3_powerpc.deb Size/MD5 checksum: 5579128 be3d6412d3c5f41344f2b6a5a8f39bfe http://security.debian.org/pool/updates/main/p/pidgin/pidgin_2.4.3-4lenny3_powerpc.deb Size/MD5 checksum: 753872 81133dbb351067d2d3ef6bbc136c106f http://security.debian.org/pool/updates/main/p/pidgin/libpurple0_2.4.3-4lenny3_powerpc.deb Size/MD5 checksum: 1760422 379017e7d47927678f6b404aa4d12936 http://security.debian.org/pool/updates/main/p/pidgin/finch_2.4.3-4lenny3_powerpc.deb Size/MD5 checksum: 362944 f0cc1dea3b629fb34549d228599bd567 These files will probably be moved into the stable distribution on its next update. - - --------------------------------------------------------------------------------- For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: debian-security-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkqMfNcACgkQHYflSXNkfP9w/QCfTs2ujTde2gHf/EgQAqpQsMKZ zEsAnjFX6Klxk/soKTyNP5ckmvF8ivMp =WcnE - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://www.auscert.org.au/1967 iD8DBQFKjJsRNVH5XJJInbgRAvEgAJ0bhM8p5WMRgea3QOCw/b6zUHhTUQCfY1xb LiRKEnftmb3bW5lzO3aU2h8= =16h3 -----END PGP SIGNATURE-----