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[gentoo-announce] [ GLSA 200812-15 ] POV-Ray: User-assisted execution of arbitrary

Posted on 14 December 2008
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 200812-15
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http://security.gentoo.org/=
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Severity: Normal
Title: POV-Ray: User-assisted execution of arbitrary code
Date: December 14, 2008
Bugs: #153538
ID: 200812-15

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Synopsis
========
POV-Ray includes a version of libpng that might allow for the execution
of arbitrary code when reading a specially crafted PNG file

Background
==========
POV-Ray is a well known open-source ray tracer.

Affected packages
=================
-------------------------------------------------------------------=
Package / Vulnerable / Unaffected
-------------------------------------------------------------------=
1 media-gfx/povray < 3.6.1-r4 >= 3.6.1-r=4

Description
===========
POV-Ray uses a statically linked copy of libpng to view and output PNG
files. The version shipped with POV-Ray is vulnerable to CVE-2008-3964,
CVE-2008-1382, CVE-2006-3334, CVE-2006-0481, CVE-2004-0768. A bug in
POV-Ray's build system caused it to load the old version when your
installed copy of libpng was >=media-libs/libpng-1.2.10.

Impact
======
An attacker could entice a user to load a specially crafted PNG file as
a texture, resulting in the execution of arbitrary code with the
permissions of the user running the application.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All POV-Ray users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/povray-3.6.1-r4"

References
==========
[ 1 ] CVE-2004-0768
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0768
[ 2 ] CVE-2006-0481
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0481
[ 3 ] CVE-2006-3334
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3334
[ 4 ] CVE-2008-1382
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1382
[ 5 ] CVE-2008-3964
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3964

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

http://security.gentoo.org/glsa/glsa-200812-15.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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