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To: gentoo-announce@g.o
From: Sean Amoss <ackle@g.o>
Subject: [ GLSA 201203-16 ] ModPlug: User-assisted execution of arbitrary code
Date: Fri, 16 Mar 2012 08:16:27 -0400
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Gentoo Linux Security Advisory                           GLSA 201203-16
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: ModPlug: User-assisted execution of arbitrary code
     Date: March 16, 2012
     Bugs: #362503, #379557
       ID: 201203-16

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Synopsis
========

Multiple vulnerabilities in ModPlug could result in execution of
arbitrary code or Denial of Service.

Background
==========

ModPlug is a library for playing MOD-like music.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/libmodplug       < 0.8.8.4                 >= 0.8.8.4

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

Multiple vulnerabilities have been found in ModPlug:

* The ReadS3M method in load_s3m.cpp fails to validate user-supplied
  information, which could cause a stack-based buffer overflow
  (CVE-2011-1574).
* The "CSoundFile::ReadWav()" function in load_wav.cpp contains an
  integer overflow which could cause a heap-based buffer overflow
  (CVE-2011-2911).
* The "CSoundFile::ReadS3M()" function in load_s3m.cpp contains
  multiple boundary errors which could cause a stack-based buffer
  overflow (CVE-2011-2912).
* The "CSoundFile::ReadAMS()" function in load_ams.cpp contains an
  off-by-one error which could cause memory corruption (CVE-2011-2913).
* The "CSoundFile::ReadDSM()" function in load_dms.cpp contains an
  off-by-one error which could cause memory corruption (CVE-2011-2914).
* The "CSoundFile::ReadAMS2()" function in load_ams.cpp contains an
  off-by-one error which could cause memory corruption (CVE-2011-2915).

Impact
======

A remote attacker could entice a user to open a specially crafted media
file, possibly resulting in execution of arbitrary code, or a Denial of
Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ModPlug users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/libmodplug-0.8.8.4"

NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since August 27, 2011. It is likely that your system is
already no longer affected by this issue.

References
==========

[ 1 ] CVE-2011-1574
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1574
[ 2 ] CVE-2011-2911
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2911
[ 3 ] CVE-2011-2912
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2912
[ 4 ] CVE-2011-2913
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2913
[ 5 ] CVE-2011-2914
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2914
[ 6 ] CVE-2011-2915
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2915

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

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

 http://security.gentoo.org/glsa/glsa-201203-16.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@g.o or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2012 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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Updated Jun 25, 2012

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