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Gentoo Linux Security Advisory                           GLSA 200411-28
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                                            https://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
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200411-28

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
https://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.

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