Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2002.016 -- Debian Security Advisory DSA 100-1 New gzip packages fix potential buffer overflow 14 January 2002 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: gzip Vendor: Debian Operating System: Debian GNU/Linux 2.2 Linux UNIX Platform: Alpha ARM i386 Motorola 680x0 PowerPC SPARC Impact: Execute Arbitrary Code/Commands Access Required: Existing Account - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - -------------------------------------------------------------------------- Debian Security Advisory DSA 100-1 security@debian.org http://www.debian.org/security/ Martin Schulze January 13th, 2002 - - -------------------------------------------------------------------------- Package : gzip Vulnerability : Potential buffer overflow Problem-Type : local Debian-specific: no GOBBLES found a buffer overflow in gzip that occurs when compressing files with really long filenames. Even though GOBBLES claims to have developed an exploit to take advantage of this bug, it has been said by others that this problem is not likely to be exploitable as other security incidents. Additionally, the Debian version of gzip from the stable release does not segfault, and hence does not directly inherit this problem. However, better be safe than sorry, so we have prepared an update for you. Please make sure you are running an up-to-date version from stable/unstable/testing with at least version 1.2.4-33. 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 2.2 alias potato - - ------------------------------------ Source archives: http://security.debian.org/dists/stable/updates/main/source/gzip_1.2.4-33.1.diff.gz MD5 checksum: e5669c5bbb138dbf1c522337aab58fc8 http://security.debian.org/dists/stable/updates/main/source/gzip_1.2.4-33.1.dsc MD5 checksum: 55f3382aebcf5e1b83b3e4004864f15c http://security.debian.org/dists/stable/updates/main/source/gzip_1.2.4.orig.tar.gz MD5 checksum: b94b3e07797e0cbf3622bb2fe5682f0b Alpha architecture: http://security.debian.org/dists/stable/updates/main/binary-alpha/gzip_1.2.4-33.1_alpha.deb MD5 checksum: 725078383b4716acf7bcf1bb85f2ab7d ARM architecture: http://security.debian.org/dists/stable/updates/main/binary-arm/gzip_1.2.4-33.1_arm.deb MD5 checksum: 4d949c3e3e770384fae6feed805fd08b Intel ia32 architecture: http://security.debian.org/dists/stable/updates/main/binary-i386/gzip_1.2.4-33.1_i386.deb MD5 checksum: b61176ee1953b528e50268995e6c2505 Motorola 680x0 architecture: http://security.debian.org/dists/stable/updates/main/binary-m68k/gzip_1.2.4-33.1_m68k.deb MD5 checksum: 61fb17bebf8ee72a087b13df4800d8e7 PowerPC architecture: http://security.debian.org/dists/stable/updates/main/binary-powerpc/gzip_1.2.4-33.1_powerpc.deb MD5 checksum: c59b537fed3dadc84d630b3033112781 Sun Sparc architecture: http://security.debian.org/dists/stable/updates/main/binary-sparc/gzip_1.2.4-33.1_sparc.deb MD5 checksum: d375736c6e46f185354b608ec11d5e0d 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 v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8QVy6W5ql+IAeqTIRAqGRAJ9k5Ni7zBMuNM5lrI3rYUVJpajTlgCfVjC1 0+Q5M7veoM2Mr7/WhJIvo2I= =ZFaW - -----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 use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. 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 original authors 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/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). 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 emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBPEMVFyh9+71yA2DNAQFNKgQAhA/f/VjDynv5mO9RL35z0urFQWVwsiFZ Ap9StoOki+675WMtwM0p3M5D6Y/CIsK3w0Q3mEVb/tv4y0ia3NYYFJ2O76ql1Ak+ fDWLbFOjm+oU79SzPsrycgpg5oEYRoizZ8eJGGTmLMhh+FLcVn5N0petRGlurFiQ Qk5t21cAGUw= =iID9 -----END PGP SIGNATURE-----