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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2002.684 -- Debian Security Advisory DSA 202-2 New IM packages correct hidden architecture dependency 09 December 2002 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: im Vendor: Debian Operating System: Debian GNU/Linux 2.2 Debian GNU/Linux 3.0 Linux Impact: Access Privileged Data Create Arbitrary Files Access Required: Existing Account Ref: ESB-2002.669 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - -------------------------------------------------------------------------- Debian Security Advisory DSA 202-2 security@debian.org http://www.debian.org/security/ Martin Schulze December 6th, 2002 http://www.debian.org/security/faq - - -------------------------------------------------------------------------- Package : im Vulnerability : temporary files Problem-Type : local Debian-specific: no Despite popular belief, the IM packages are not architecture independent, since the number of the fsync syscal is detected on build time and this number differs on Linux architectures and other operating systems. As a result of this the optional feature ``NoSync=no'' does only work on the architecture the package was built on. As usual, we are including the text of the original advisory DSA 202-1: Tatsuya Kinoshita discovered that IM, which contains interface commands and Perl libraries for E-mail and NetNews, creates temporary files insecurely. 1. The impwagent program creates a temporary directory in an insecure manner in /tmp using predictable directory names without checking the return code of mkdir, so it's possible to seize a permission of the temporary directory by local access as another user. 2. The immknmz program creates a temporary file in an insecure manner in /tmp using a predictable filename, so an attacker with local access can easily create and overwrite files as another user. This problem has been fixed in version 141-18.2 for the current stable distribution (woody), in version 133-2.3 of the old stable distribution (potato). A correection is expected for the unstable distribution (sid) soon. We recommend that you upgrade your IM package. 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/pool/updates/main/i/im/im_133-2.3.dsc Size/MD5 checksum: 513 65dd0bbcb7d00d664368fcf9738ba615 http://security.debian.org/pool/updates/main/i/im/im_133-2.3.diff.gz Size/MD5 checksum: 7521 954b2f8f55ae7f62683c240322348609 http://security.debian.org/pool/updates/main/i/im/im_133.orig.tar.gz Size/MD5 checksum: 205055 df14f9a251a8d47fc045b6303090be47 Architecture independent components: http://security.debian.org/pool/updates/main/i/im/im_133-2.3_all.deb Size/MD5 checksum: 218056 85f7e256fa243204c4797bed622da192 Debian GNU/Linux 3.0 alias woody - - -------------------------------- Source archives: http://security.debian.org/pool/updates/main/i/im/im_141-18.2.dsc Size/MD5 checksum: 568 27c54961223aac6c3ad0e9ac8bec2210 http://security.debian.org/pool/updates/main/i/im/im_141-18.2.diff.gz Size/MD5 checksum: 14706 03fcab14b6ceab8d3f586ded82fd7fe7 http://security.debian.org/pool/updates/main/i/im/im_141.orig.tar.gz Size/MD5 checksum: 207576 9ecd2d6009048f1fecbc7b2e0e8cd489 Architecture independent components: http://security.debian.org/pool/updates/main/i/im/im_141-18.2_all.deb Size/MD5 checksum: 217680 af681b5b5d149adf134471b1dcb37ad7 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 v1.0.7 (GNU/Linux) iD8DBQE98K9JW5ql+IAeqTIRAo+YAJ9g/Mzr56pxZAHoX5q8my3JnH68GACgrM2u id/H8cFC9kxNQk/JDr6cGGo= =22Al - -----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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On call after hours for member emergencies only. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBPfR3HCh9+71yA2DNAQEYvwP/ZgfGg+IibTbUrfidOJdPHe0fiI5H2D1G Z4pJedZsKc/PYT53LSSXdSRl54d7HFzLAK1CLU0EflifLvcF0ATwQEB35ex4J6Iq yoLhuOFgrLVCPCjUB2X9h7G6VmZC/1FIqP9kLNUnYmK30o/tYE4159Y3tcFk8Xxm I5UviP92Y9M= =ul4E -----END PGP SIGNATURE-----