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                                  CERT-Renater

                       Note d'Information No. 2005/VULN178
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DATE                      : 14/03/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems using libXpm.

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Gentoo Linux Security Advisory                           GLSA 200503-15
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                                             http://security.gentoo.org/
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   Severity: Normal
      Title: X.org: libXpm vulnerability
       Date: March 12, 2005
    Updated: March 12, 2005
       Bugs: #83598
         ID: 200503-15

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Synopsis
========

A new vulnerability has been discovered in libXpm, which is included in
X.org, that can potentially lead to remote code execution.

Background
==========

libXpm is a pixmap manipulation library for the X Window System,
included in X.org.

Affected packages
=================

     -------------------------------------------------------------------
      Package            /  Vulnerable  /                    Unaffected
     -------------------------------------------------------------------
   1  x11-base/xorg-x11     < 6.8.2-r1                     *>= 6.8.0-r5
                                                            >= 6.8.2-r1

Description
===========

Chris Gilbert has discovered potentially exploitable buffer overflow
cases in libXpm that weren't fixed in previous libXpm versions.

Impact
======

A carefully-crafted XPM file could crash X.org, potentially allowing
the execution of arbitrary code with the privileges of the user running
the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All X.org users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose x11-base/xorg-x11

References
==========

   [ 1 ] CAN-2005-0605
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0605
   [ 2 ] Freedesktop bug
         https://bugs.freedesktop.org/show_bug.cgi?id=1920

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

   http://security.gentoo.org/glsa/glsa-200503-15.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0


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