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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0073 -- Debian Security Advisory DSA 429-1 New gnupg packages fix cryptographic weakness in ElGamal signing keys 27 January 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: gnupg Publisher: Debian Operating System: Debian GNU/Linux 3.0 Linux Impact: Access Confidential Data Access Required: Remote CVE Names: CAN-2003-0971 Ref: ESB-2003.0820 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - -------------------------------------------------------------------------- Debian Security Advisory DSA 429-1 security@debian.org http://www.debian.org/security/ Matt Zimmerman January 26th, 2004 http://www.debian.org/security/faq - - -------------------------------------------------------------------------- Package : gnupg Vulnerability : cryptographic weakness Problem-Type : local Debian-specific: no CVE Ids : CAN-2003-0971 Phong Nguyen identified a severe bug in the way GnuPG creates and uses ElGamal keys for signing. This is a significant security failure which can lead to a compromise of almost all ElGamal keys used for signing. This update disables the use of this type of key. For the current stable distribution (woody) this problem has been fixed in version 1.0.6-4woody1. For the unstable distribution, this problem has been fixed in version 1.2.4-1. We recommend that you update your gnupg package. 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 3.0 alias woody - - -------------------------------- Source archives: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1.dsc Size/MD5 checksum: 577 ba605a24ce1f05d0b56a8365afcfbab7 http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1.diff.gz Size/MD5 checksum: 2651 547a67db2c9b39e9ca372bf163bc8883 http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6.orig.tar.gz Size/MD5 checksum: 1941676 7c319a9e5e70ad9bc3bf0d7b5008a508 Alpha architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_alpha.deb Size/MD5 checksum: 1149782 35d9420faf6571b22109453fa0e707b7 ARM architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_arm.deb Size/MD5 checksum: 986726 6d5a35f97bfc037667c787eeef818027 Intel IA-32 architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_i386.deb Size/MD5 checksum: 966382 e4a2e973cbbde196e1cbddaecfcc1ef8 Intel IA-64 architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_ia64.deb Size/MD5 checksum: 1271170 c449638391c6ce357508c12256170282 HP Precision architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_hppa.deb Size/MD5 checksum: 1058492 a4db862a5e2e6dceada146bddc1fc913 Motorola 680x0 architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_m68k.deb Size/MD5 checksum: 941836 bbbd0cf2a910ab981e8ea31f4bf1efcf Big endian MIPS architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_mips.deb Size/MD5 checksum: 1035512 7a16602af5c5f59e2147753864f6dd83 PowerPC architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_powerpc.deb Size/MD5 checksum: 1009118 c9fd5e6b0cc08b410214a1172f1434e6 IBM S/390 architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_s390.deb Size/MD5 checksum: 1001546 ce633e93e4d2dbe7a279f60dbf9cd132 Sun Sparc architecture: http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.0.6-4woody1_sparc.deb Size/MD5 checksum: 1003476 4ed36f1131cc8b3b472ffc72efd6f3df These files will probably be moved into the stable distribution on its next revision. - - --------------------------------------------------------------------------------- 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 v1.2.4 (GNU/Linux) iD8DBQFAFbNtArxCt0PiXR4RAtl6AKC5h5kZHTB4Jfk1Zl6wvY7L/JqR2gCfSgPB 74LklWazp3v14oEALNC4uxM= =SNtZ - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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 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: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQBYJ2Ch9+71yA2DNAQEEWwQAnLc1UOdivJhYOHV+uw2Ra8Bwj/aoQYgR +02QvFR2uvoft2A2hCyWTpNits+ZtO3II98XnITFGB/dYo7EzAPciP7QkG6mT3Af FmgGJowMz4CnWErXimpxatxj+onRJsRbP2bpOr9yPPmKA5yItBLvM7s7Nurj1g4u uYGIq2Osh/A= =BqVc -----END PGP SIGNATURE-----