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[ GLSA 200411-28 ] X.Org, XFree86: libXpm vulnerabilities
From: Thierry Carrez <koon () gentoo org>
Date: Fri, 19 Nov 2004 23:25:58 +0100

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Gentoo Linux Security Advisory                           GLSA 200411-28
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: X.Org, XFree86: libXpm vulnerabilities
      Date: November 19, 2004
      Bugs: #68544
        ID: 200411-28

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Synopsis
========

libXpm contains several vulnerabilities that could lead to a Denial of
Service and arbitrary code execution.

Background
==========

libXpm is a pixmap manipulation library for the X Window System,
included in both X.Org and XFree86.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  x11-base/xorg-x11     < 6.8.0-r3                      >= 6.8.0-r3
                                                          *>= 6.7.0-r3
  2  x11-base/xfree        < 4.3.0-r8                      >= 4.3.0-r8
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Several issues were discovered in libXpm, including integer overflows,
out-of-bounds memory accesses, insecure path traversal and an endless
loop.

Impact
======

An attacker could craft a malicious pixmap file and entice a user to
use it with an application linked against libXpm. This could lead to
Denial of Service or arbitrary code execution.

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-x11-6.7.0-r3"

All XFree86 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-base/xfree-x11-4.3.0-r8"

References
==========

  [ 1 ] CAN-2004-0914
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0914

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

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

  http://security.gentoo.org/glsa/glsa-200411-28.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 2004 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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