DSA 644-1: New chbg packages fix arbitrary code execution

New chbg packages are available for Debian GNU/Linux

---------------------------------------------------------------------------
Debian Security Advisory DSA 644-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
January 18th, 2005 http://www.debian.org/security/faq
---------------------------------------------------------------------------

Package : chbg
Vulnerability : buffer overflow
Problem-Type : local
Debian-specific: no
CVE ID : CAN-2004-1264
Debian Bug : 285904

Danny Lungstrom discoverd a vulnerability in chbg, a tool to change background pictures. A maliciously crafted configuration/scenario file could overflow a buffer and lead to the execution of arbitrary code on the victim's machine.

For the stable distribution (woody) this problem has been fixed in version 1.5-1woody1.

For the unstable distribution (sid) this problem has been fixed in version 1.5-4.

We recommend that you upgrade your chbg 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/c/chbg/chbg_1.5-1woody1.dsc
Size/MD5 checksum: 600 3cb28b61fb97dca63f09a486dae5612f
http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1.diff.gz
Size/MD5 checksum: 3612 08098cf0fec406380e968186766de027
http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5.orig.tar.gz
Size/MD5 checksum: 322878 4a158c94c25b359c86da1de9ef3e986b

Alpha architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_alpha.deb
Size/MD5 checksum: 294456 afd6ce377d43c0df909d955e04c328cd

ARM architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_arm.deb
Size/MD5 checksum: 247338 878c528ab81decd999503ad47557fc4a

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_i386.deb
Size/MD5 checksum: 244862 d3a09b86dfc44164c541cda2eb66ce66

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_ia64.deb
Size/MD5 checksum: 345228 e4b9ae6b9da9c34d5a930727bdfc1a44

HP Precision architecture:

Cannot be updated due to compiler error.

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_m68k.deb
Size/MD5 checksum: 222916 7dce4c0b3ae27f624ee472bd153d5c66

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_mips.deb
Size/MD5 checksum: 249054 66402b53b158bfa0b2144b6b97b1d794

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_mipsel.deb
Size/MD5 checksum: 247536 769f5074ad1f4b148191d0e196d01778

PowerPC architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_powerpc.deb
Size/MD5 checksum: 271272 f6b03b2a05de42ee203d7d9cbfe7c468

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_s390.deb
Size/MD5 checksum: 239098 f20c7b0e36ecfc4540d3673f4ec477dd

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/c/chbg/chbg_1.5-1woody1_sparc.deb
Size/MD5 checksum: 263302 28df5318e314bbaf79493b485aa6cffa


These files will probably be moved into the stable distribution on its next update.