GLSA 200409-30: xine-lib: Multiple vulnerabilities
Posted on: 09/22/2004 07:38 PM

A xine-lib security update is available for Gentoo Linux

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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
================

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Package / Vulnerable / Unaffected
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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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