GLSA 200803-13 VLC: Multiple vulnerabilities
Posted on: 03/08/2008 01:00 AM

A new security update has been released for Gentoo Linux - VLC: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200803-13
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http://security.gentoo.org/
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Severity: High
Title: VLC: Multiple vulnerabilities
Date: March 07, 2008
Bugs: #203345, #211575, #205299
ID: 200803-13

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Synopsis
========

Multiple vulnerabilities were found in VLC, allowing for the execution
of arbitrary code and Denial of Service.

Background
==========

VLC is a cross-platform media player and streaming server.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-video/vlc lt; 0.8.6e gt;= 0.8.6e

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

Multiple vulnerabilities were found in VLC:

* Michal Luczaj and Luigi Auriemma reported that VLC contains
boundary errors when handling subtitles in the ParseMicroDvd(),
ParseSSA(), and ParseVplayer() functions in the
modules/demux/subtitle.c file, allowing for a stack-based buffer
overflow (CVE-2007-6681).

* The web interface listening on port 8080/tcp contains a format
string error in the httpd_FileCallBack() function in the
network/httpd.c file (CVE-2007-6682).

* The browser plugin possibly contains an argument injection
vulnerability (CVE-2007-6683).

* The RSTP module triggers a NULL pointer dereference when processing
a request without a "Transport" parameter (CVE-2007-6684).

* Luigi Auriemma and Remi Denis-Courmont found a boundary error in
the modules/access/rtsp/real_sdpplin.c file when processing SDP data
for RTSP sessions (CVE-2008-0295) and a vulnerability in the
libaccess_realrtsp plugin (CVE-2008-0296), possibly resulting in a
heap-based buffer overflow.

* Felipe Manzano and Anibal Sacco (Core Security Technologies)
discovered an arbitrary memory overwrite vulnerability in VLC's
MPEG-4 file format parser (CVE-2008-0984).

Impact
======

A remote attacker could send a long subtitle in a file that a user is
enticed to open, a specially crafted MP4 input file, long SDP data, or
a specially crafted HTTP request with a "Connection" header value
containing format specifiers, possibly resulting in the remote
execution of arbitrary code. Also, a Denial of Service could be caused
and arbitrary files could be overwritten via the "demuxdump-file"
option in a filename in a playlist or via an EXTVLCOPT statement in an
MP3 file.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All VLC users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=media-video/vlc-0.8.6e"

References
==========

[ 1 ] CVE-2007-6681
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6681
[ 2 ] CVE-2007-6682
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6682
[ 3 ] CVE-2007-6683
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6683
[ 4 ] CVE-2007-6684
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6684
[ 5 ] CVE-2008-0295
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0295
[ 6 ] CVE-2008-0296
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0296
[ 7 ] CVE-2008-0984
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0984

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

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

http://security.gentoo.org/glsa/glsa-200803-13.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 2008 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/2.5



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