[ GLSA 200812-18 ] JasPer: User-assisted execution of arbitrary code

[Robert Buchholz <rbu () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200812-18
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: JasPer: User-assisted execution of arbitrary code
      Date: December 16, 2008
      Bugs: #222819
        ID: 200812-18

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Synopsis
========

Multiple memory management errors in JasPer might lead to execution of
arbitrary code via jpeg2k files.

Background
==========

The JasPer Project is an open-source initiative to provide a free
software-based reference implementation of the codec specified in the
JPEG-2000 Part-1 (jpeg2k) standard.

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

    -------------------------------------------------------------------
     Package            /   Vulnerable   /                  Unaffected
    -------------------------------------------------------------------
  1  media-libs/jasper     < 1.900.1-r3                  >= 1.900.1-r3

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

Marc Espie and Christian Weisgerber have discovered multiple
vulnerabilities in JasPer:

* Multiple integer overflows might allow for insufficient memory
  allocation, leading to heap-based buffer overflows (CVE-2008-3520).

* The jas_stream_printf() function in libjasper/base/jas_stream.c
  uses vsprintf() to write user-provided data to a static to a buffer,
  leading to an overflow (CVE-2008-3522).

Impact
======

Remote attackers could entice a user or automated system to process
specially crafted jpeg2k files with an application using JasPer,
possibly leading to the execution of arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All JasPer users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/jasper-1.900.1-r3"

References
==========

  [ 1 ] CVE-2008-3520
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3520
  [ 2 ] CVE-2008-3522
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3522

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

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

  http://security.gentoo.org/glsa/glsa-200812-18.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 2008 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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