[ GLSA 200905-09 ] libsndfile: User-assisted execution of arbitrary code

[Alex Legler <a3li () gentoo org>]

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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

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