A new security update has been released for Gentoo Linux - FLAC: Buffer overflow. Here the announcement:
Gentoo Linux Security Advisory GLSA 200711-15
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http://security.gentoo.org/
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Severity: Normal
Title: FLAC: Buffer overflow
Date: November 12, 2007
Bugs: #195700
ID: 200711-15
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Synopsis
========
Multiple integer overflow vulnerabilities were found in FLAC possibly
allowing for the execution of arbitrary code.
Background
==========
The Xiph.org Free Lossless Audio Codec (FLAC) library is the reference
implementation of the FLAC audio file format. It contains encoders and
decoders in library and executable form.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/flac < 1.2.1-r1 >= 1.2.1-r1
Description
===========
Sean de Regge reported multiple integer overflows when processing FLAC
media files that could lead to improper memory allocations resulting in
heap-based buffer overflows.
Impact
======
A remote attacker could entice a user to open a specially crafted FLAC
file or network stream with an application using FLAC. This might lead
to the execution of arbitrary code with privileges of the user playing
the file.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All FLAC users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/flac-1.2.1-r1"
You should also run revdep-rebuild to rebuild any packages that depend
on older versions of FLAC:
# revdep-rebuild --library=libFLAC.*
References
==========
[ 1 ] CVE-2007-4619
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4619
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200711-15.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 2007 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
