DSA 649-1: New xtrlock packages fix authentication bypass

Posted by Philipp Esselbach on: 01/20/2005 07:40 AM [ Print | 0 comment(s) ]

New xtrlock packages are available for Debian GNU/Linux

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Debian Security Advisory DSA 649-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
January 20th, 2005 http://www.debian.org/security/faq
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Package : xtrlock
Vulnerability : buffer overflow
Problem-Type : local
Debian-specific: no
CVE ID : CAN-2005-0079
Debian Bug : 278190 278191

A buffer overflow has been discovered in xtrlock, a minimal X display lock program which can be exploited by a malicious local attacker to crash the lock program and take over the desktop session.

For the stable distribution (woody) this problem has been fixed in version 2.0-6woody2.

For the unstable distribution (sid) this problem has been fixed in version 2.0-9.

We recommend that you upgrade your xtrlock 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/x/xtrlock/xtrlock_2.0-6woody2.dsc
Size/MD5 checksum: 500 d39ea1ae4ee66338786d018406065022
http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2.tar.gz
Size/MD5 checksum: 6977 6e6cfc0627bb74bd5014b550c2ea7a5f

Alpha architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_alpha.deb
Size/MD5 checksum: 9604 d05e56b7856e770b1b43daaf43a0dc3d

ARM architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_arm.deb
Size/MD5 checksum: 8604 f0d46d569f47ecb8a138c9f91be6cdc6

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_i386.deb
Size/MD5 checksum: 8730 63b6233b95553ffa59de4811c06a6502

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_ia64.deb
Size/MD5 checksum: 10104 ab12fc340b57cb3cbd58cbb0e6e1c188

HP Precision architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_hppa.deb
Size/MD5 checksum: 8988 cd59712f225ec6d790ad608a8c0dac3a

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_m68k.deb
Size/MD5 checksum: 8606 abac92671aefe845c7fd609668a9f367

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_mips.deb
Size/MD5 checksum: 8830 1a09a3a4e99e8c5f94a555ad8f9fc0c0

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_mipsel.deb
Size/MD5 checksum: 8828 7f56d17dd068abe7cb99a47f2e328fc9

PowerPC architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_powerpc.deb
Size/MD5 checksum: 8636 cd7dfdba990035bc942e1c16844eefcd

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_s390.deb
Size/MD5 checksum: 9128 f85ab602c4160b29bdb98170114b2368

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/x/xtrlock/xtrlock_2.0-6woody2_sparc.deb
Size/MD5 checksum: 11340 c5b11b174068e3b0ebc61aa5f6cf9412

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