bugtraq - [SECURITY] [DSA 649-1] New xtrlock packages fix authentication bypass

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Message-ID: <m1CrZLQ-000oguC__486.108571249311$1106272747$gmane$org@finlandia.Infodrom.North.DE>
Date: Thu, 20 Jan 2005 11:15:16 +0100 (CET)
From: joey@...odrom.org (Martin Schulze)
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 649-1] New xtrlock packages fix authentication bypass


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- --------------------------------------------------------------------------
Debian Security Advisory DSA 649-1                     security@...ian.org
http://www.debian.org/security/                             Martin Schulze
January 20th, 2005                      http://www.debian.org/security/faq
- --------------------------------------------------------------------------

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.

- ---------------------------------------------------------------------------------
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@...ts.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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