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[ GLSA 200804-25 ] VLC: User-assisted execution of arbitrary code
From: Robert Buchholz <rbu () gentoo org>
Date: Wed, 23 Apr 2008 18:20:45 +0200

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Gentoo Linux Security Advisory                           GLSA 200804-25
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: VLC: User-assisted execution of arbitrary code
      Date: April 23, 2008
      Bugs: #214277, #214627
        ID: 200804-25

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Synopsis
========

Multiple vulnerabilities were found in VLC, allowing for the execution
of arbitrary code.

Background
==========

VLC is a cross-platform media player and streaming server.

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  media-video/vlc      < 0.8.6f                           >= 0.8.6f

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

Multiple vulnerabilities were found in VLC:

* Luigi Auriemma discovered that the stack-based buffer overflow when
  reading subtitles, which has been reported as CVE-2007-6681 in GLSA
  200803-13, was not properly fixed (CVE-2008-1881).

* Alin Rad Pop of Secunia reported an array indexing vulnerability in
  the sdpplin_parse() function when processing streams from RTSP
  servers in Xine code, which is also used in VLC (CVE-2008-0073).

* Drew Yao and Nico Golde reported an integer overflow in the
  MP4_ReadBox_rdrf() function in the file libmp4.c leading to a
  heap-based buffer overflow when reading MP4 files (CVE-2008-1489).

* Drew Yao also reported integer overflows in the MP4 demuxer, the
  Real demuxer and in the Cinepak codec, which might lead to buffer
  overflows (CVE-2008-1768).

* Drew Yao finally discovered and a boundary error in Cinepak, which
  might lead to memory corruption (CVE-2008-1769).

Impact
======

A remote attacker could entice a user to open a specially crafted media
file or stream, possibly resulting in the remote execution of arbitrary
code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All VLC users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-video/vlc-0.8.6f"

References
==========

  [ 1 ] CVE-2007-6681
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6681
  [ 2 ] CVE-2008-0073
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0073
  [ 3 ] CVE-2008-1489
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1489
  [ 4 ] CVE-2008-1768
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1768
  [ 5 ] CVE-2008-1769
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1769
  [ 6 ] CVE-2008-1881
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1881
  [ 7 ] GLSA 200803-13
        http://www.gentoo.org/security/en/glsa/glsa-200803-13.xml

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

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

  http://security.gentoo.org/glsa/glsa-200804-25.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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