full-disclosure - [ GLSA 200802-12 ] xine-lib: User-assisted execution of arbitrary code

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Message-Id: <200802262355.28724.rbu@gentoo.org>
Date: Tue, 26 Feb 2008 23:55:28 +0100
From: Robert Buchholz <rbu@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200802-12 ] xine-lib: User-assisted
	execution of arbitrary code

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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@...too.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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