[ GLSA 200411-28 ] X.Org, XFree86: libXpm vulnerabilities

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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_at_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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