Date: Wed, 22 Sep 2004 22:26:27 +0200
From: Thierry Carrez <koon@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Subject: [ GLSA 200409-30 ] xine-lib: Multiple vulnerabilities
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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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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