"Gentoo Linux Security Advisory GLSA 200905-09
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http://security.gentoo.org/
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Severity: Normal
Title: libsndfile: User-assisted execution of arbitrary code
Date: May 27, 2009
Bugs: #269863
ID: 200905-09

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Synopsis
========

Multiple heap-based buffer overflow vulnerabilities in libsndfile might
allow remote attackers to execute arbitrary code.

Background
==========

libsndfile is a C library for reading and writing files containing
sampled sound.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/libsndfile < 1.0.20 > = 1.0.20

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

The following vulnerabilities have been found in libsndfile:

* Tobias Klein reported that the header_read() function in
src/common.c uses user input for calculating a buffer size, possibly
leading to a heap-based buffer overflow (CVE-2009-1788).

* The vendor reported a boundary error in the aiff_read_header()
function in src/aiff.c, possibly leading to a heap-based buffer
overflow (CVE-2009-1791).

Impact
======

A remote attacker could entice a user to open a specially crafted AIFF
or VOC file in a program using libsndfile, possibly resulting in the
execution of arbitrary code with the privileges of the user running the
application.

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-1.0.20"

References
==========

[ 1 ] CVE-2009-1788
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1788
[ 2 ] CVE-2009-1791
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1791

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

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

http://security.gentoo.org/glsa/glsa-200905-09.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 2009 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
"