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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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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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Version: GnuPG v1.2.4 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

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