Debian alert: New logcheck packages fix insecure temporary directory

Posted by dave on Apr 17, 2004 6:17 AM EDT
Mailing list; By Matt Zimmerman <mdz@debian.org>
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Christian Jaeger reported a bug in logcheck which could potentially be exploited by a local user to overwrite files with root privileges. logcheck utilized a temporary directory under /var/tmp without taking security precautions. While this directory is created when logcheck is installed, and while it exists there is no vulnerability, if at any time this directory is removed, the potential for exploitation exists.

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- -------------------------------------------------------------------------- Debian Security Advisory DSA 488-1 [e-mail:security@debian.org] http://www.debian.org/security/ Matt Zimmerman April 16th, 2004 http://www.debian.org/security/faq - --------------------------------------------------------------------------

Package : logcheck Vulnerability : insecure temporary directory Problem-Type : local Debian-specific: no CVE Ids : CAN-2004-0404

Christian Jaeger reported a bug in logcheck which could potentially be exploited by a local user to overwrite files with root privileges. logcheck utilized a temporary directory under /var/tmp without taking security precautions. While this directory is created when logcheck is installed, and while it exists there is no vulnerability, if at any time this directory is removed, the potential for exploitation exists.

For the current stable distribution (woody) this problem has been fixed in version 1.1.1-13.1woody1.

For the unstable distribution (sid), this problem has been fixed in version 1.1.1-13.2.

We recommend that you update your logcheck 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/l/logcheck/logcheck_1.1.1-13.1woody1.dsc Size/MD5 checksum: 613 8e01951f551f262ad2ca57543f8e365a http://security.debian.org/pool/updates/main/l/logcheck/logcheck_1.1.1-13.1woody1.diff.gz Size/MD5 checksum: 24812 e4e98736893194d3d59d01ba34e2f3e7 http://security.debian.org/pool/updates/main/l/logcheck/logcheck_1.1.1.orig.tar.gz Size/MD5 checksum: 29998 51c91fff337e30958df368c648911647

Architecture independent components:

http://security.debian.org/pool/updates/main/l/logcheck/logcheck-database_1.1.1-13.1woody1_all.deb Size/MD5 checksum: 16450 f14aed68d079c1a64651c6c75ef1ab14 http://security.debian.org/pool/updates/main/l/logcheck/logcheck_1.1.1-13.1woody1_all.deb Size/MD5 checksum: 25146 c6f1446b5d520e42384ffb3408da864e http://security.debian.org/pool/updates/main/l/logcheck/logtail_1.1.1-13.1woody1_all.deb Size/MD5 checksum: 9338 5bfca1c9d03ee43a18d54df1be5891d9

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: [e-mail:debian-security-announce@lists.debian.org] Package info: 'apt-cache show ' and http://packages.debian.org/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux)

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