[Full-disclosure] [ GLSA 200704-09 ] xine-lib: Heap-based buffer overflow

[Raphael Marichez]

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Gentoo Linux Security Advisory                           GLSA 200704-09
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: xine-lib: Heap-based buffer overflow
      Date: April 14, 2007
      Bugs: #170208
        ID: 200704-09

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Synopsis
========

xine-lib is vulnerable to a heap-based buffer overflow.

Background
==========

xine-lib is the core library package for the xine media player.

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  media-libs/xine-lib     < 1.1.4-r2                    >= 1.1.4-r2
    -------------------------------------------------------------------
     # Package 1 only applies to x86 users.

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

xine-lib does not check boundaries on data being read into buffers from
DMO video files in code that is shared with MPlayer
(DMO_VideoDecoder.c).

Impact
======

An attacker could entice a user to play a specially crafted DMO video
file with a player using xine-lib, potentially resulting in the
execution of arbitrary code with the privileges of the user running the
player.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All xine-lib users on the x86 platform should upgrade to the latest
version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/xine-lib-1.1.4-r2"

References
==========

  [ 1 ] CVE-2007-1246
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1246

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

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

  http://security.gentoo.org/glsa/glsa-200704-09.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 at gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 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
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