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[ GLSA 200802-12 ] xine-lib: User-assisted execution of arbitrary code
From: Robert Buchholz <rbu () gentoo org>
Date: Tue, 26 Feb 2008 23:55:28 +0100

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Gentoo Linux Security Advisory                           GLSA 200802-12
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: xine-lib: User-assisted execution of arbitrary code
      Date: February 26, 2008
      Bugs: #209106, #208100
        ID: 200802-12

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Synopsis
========

xine-lib is vulnerable to multiple buffer overflows when processing
FLAC and ASF streams.

Background
==========

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

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  media-libs/xine-lib     < 1.1.10.1                    >= 1.1.10.1

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

Damian Frizza and Alfredo Ortega (Core Security Technologies)
discovered a stack-based buffer overflow within the open_flac_file()
function in the file demux_flac.c when parsing tags within a FLAC file
(CVE-2008-0486). A buffer overflow when parsing ASF headers, which is
similar to CVE-2006-1664, has also been discovered.

Impact
======

A remote attacker could entice a user to play specially crafted FLAC or
ASF video streams 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 should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/xine-lib-1.1.10.1"

References
==========

  [ 1 ] CVE-2006-1664
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1664
  [ 2 ] CVE-2008-0486
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0486

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

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

  http://security.gentoo.org/glsa/glsa-200802-12.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 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

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