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Gentoo Linux Security Advisory                           GLSA 200405-24
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                                            http://security.gentoo.org/
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  Severity: High
     Title: MPlayer, xine-lib: vulnerabilities in RTSP stream handling
      Date: May 28, 2004
      Bugs: #49387
        ID: 200405-24

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Synopsis
========

Multiple vulnerabilities, including remotely exploitable buffer
overflows, have been found in code common to MPlayer and the xine
library.

Background
==========

MPlayer is a movie player capable of handling multiple multimedia file
formats. xine-lib is a multimedia player library used by several
graphical user interfaces, including xine-ui. They both use the same
code to handle Real-Time Streaming Protocol (RTSP) streams from
RealNetworks servers.

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

    -------------------------------------------------------------------
     Package              /   Vulnerable   /                Unaffected
    -------------------------------------------------------------------
  1  media-video/mplayer      < 1.0_pre4                   >= 1.0_pre4
                                                            <= 0.92-r1
  2  media-libs/xine-lib        < 1_rc4                       >= 1_rc4
                                                          <= 0.9.13-r3

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

Multiple vulnerabilities have been found and fixed in the RTSP handling
code common to recent versions of these two packages. These
vulnerabilities include several remotely exploitable buffer overflows.

Impact
======

A remote attacker, posing as a RTSP stream server, can execute
arbitrary code with the rights of the user of the software playing the
stream (MPlayer or any player using xine-lib). Another attacker may
entice a user to use a maliciously crafted URL or playlist to achieve
the same results.

Workaround
==========

For MPlayer, there is no known workaround at this time. For xine-lib,
you can delete the xineplug_inp_rtsp.so file.

Resolution
==========

All users should upgrade to non-vulnerable versions of MPlayer and
xine-lib:

    # emerge sync

    # emerge -pv ">=media-video/mplayer-1.0_pre4"
    # emerge ">=media-video/mplayer-1.0_pre4"

    # emerge -pv ">=media-libs/xine-lib-1_rc4"
    # emerge ">=media-libs/xine-lib-1_rc4"

References
==========

  [ 1 ] Xine security advisory
        http://xinehq.de/index.php/security/XSA-2004-3
  [ 2 ] CAN-2004-0433
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0433

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

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

     http://security.gentoo.org/glsa/glsa-200405-24.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 2004 Gentoo Technologies, 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/1.0

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