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Gentoo Linux Security Advisory [ERRATA UPDATE]        GLSA 200801-09:03
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                                            http://security.gentoo.org/
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  Severity: High
     Title: X.Org X server and Xfont library: Multiple vulnerabilities
      Date: January 20, 2008
   Updated: March 05, 2008
      Bugs: #204362, #208343
        ID: 200801-09:03

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Errata
======

The previous version of the X.Org X server (1.3.0.0-r4) did not
properly address the integer overflow vulnerability in the MIT-SHM
extension (CVE-2007-6429). It failed to check on Pixmaps of certain
bit depths.

All users of the X.Org X server package should upgrade to
x11-base/xorg-server-1.3.0.0-r5.

The corrected sections appear below.

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

    -------------------------------------------------------------------
     Package               /   Vulnerable   /               Unaffected
    -------------------------------------------------------------------
  1  x11-base/xorg-server     < 1.3.0.0-r5               >= 1.3.0.0-r5
  2  x11-libs/libXfont         < 1.3.1-r1                  >= 1.3.1-r1
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

Resolution
==========

All X.Org X server users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.3.0.0-r5"

All X.Org Xfont library users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-libs/libXfont-1.3.1-r1"

References
==========

  [ 1 ] CVE-2007-5760
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5760
  [ 2 ] CVE-2007-5958
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5958
  [ 3 ] CVE-2007-6427
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6427
  [ 4 ] CVE-2007-6428
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6428
  [ 5 ] CVE-2007-6429
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6429
  [ 6 ] CVE-2008-0006
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0006
  [ 7 ] X.Org security advisory
        http://lists.freedesktop.org/archives/xorg/2008-January/031918.html

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

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

  http://security.gentoo.org/glsa/glsa-200801-09.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@g.o or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2008 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/2.5