[ GLSA 200409-30 ] xine-lib: Multiple vulnerabilities

[Thierry Carrez <koon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200409-30
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: xine-lib: Multiple vulnerabilities
      Date: September 22, 2004
      Bugs: #64348
        ID: 200409-30

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Synopsis
========

xine-lib contains several vulnerabilities potentially allowing the
execution of arbitrary code.

Background
==========

xine-lib is a multimedia library which can be utilized to create
multimedia frontends.

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

    -------------------------------------------------------------------
     Package              /   Vulnerable   /                Unaffected
    -------------------------------------------------------------------
  1  media-libs/xine-lib      <= 1_rc5-r3                     >= 1_rc6

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

xine-lib contains two stack-based overflows and one heap-based
overflow. In the code reading VCD disc labels, the ISO disc label is
copied into an unprotected stack buffer of fixed size. Also, there is a
buffer overflow in the code that parses subtitles and prepares them for
display (XSA-2004-4). Finally, xine-lib contains a heap-based overflow
in the DVD sub-picture decoder (XSA-2004-5).

(Please note that the VCD MRL issue mentioned in XSA-2004-4 was fixed
with GLSA 200408-18.)

Impact
======

With carefully-crafted VCDs, DVDs, MPEGs or subtitles, an attacker may
cause xine-lib to execute arbitrary code with the permissions of the
user.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

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

    # emerge sync

    # emerge -pv ">=media-libs/xine-lib-1_rc6"
    # emerge ">=media-libs/xine-lib-1_rc6"

References
==========

  [ 1 ] BugTraq Announcement (XSA-2004-4)

http://www.securityfocus.com/archive/1/375485/2004-09-02/2004-09-08/0
  [ 2 ] BugTraq Announcement (XSA-2004-5)

http://www.securityfocus.com/archive/1/375482/2004-09-02/2004-09-08/0

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

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

  http://security.gentoo.org/glsa/glsa-200409-30.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 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/1.0

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