Date: Sun, 7 Oct 2007 22:22:01 +0200
From: Raphael Marichez <falco@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200710-04 ] libsndfile: Buffer overflow
Message-ID: <20071007202201.GA19345@falco.falcal.net.>
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Gentoo Linux Security Advisory GLSA 200710-04
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http://security.gentoo.org/
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Severity: Normal
Title: libsndfile: Buffer overflow
Date: October 07, 2007
Bugs: #192834
ID: 200710-04
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Synopsis
========
A buffer overflow vulnerability has been discovered in libsndfile.
Background
==========
libsndfile is a library for reading and writing various formats of
audio files including WAV and FLAC.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/libsndfile < 1.0.17-r1 >= 1.0.17-r1
Description
===========
Robert Buchholz of the Gentoo Security team discovered that the
flac_buffer_copy() function does not correctly handle FLAC streams with
variable block sizes which leads to a heap-based buffer overflow
(CVE-2007-4974).
Impact
======
A remote attacker could exploit this vulnerability by enticing a user
to open a specially crafted FLAC file or network stream with an
application using libsndfile. 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 libsndfile users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libsndfile-1.0.17-r1"
References
==========
[ 1 ] CVE-2007-4974
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4974
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200710-04.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
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