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Gentoo Linux Security Advisory                           GLSA 201001-07
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  Severity: Normal
     Title: Blender: Untrusted search path
      Date: January 13, 2010
      Bugs: #245310
        ID: 201001-07

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Synopsis
========

An untrusted search path vulnerability in Blender might result in the
execution of arbitrary code.

Background
==========

Blender is a 3D Creation/Animation/Publishing System.

Affected packages
=================

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  media-gfx/blender     < 2.48a-r3                      >= 2.48a-r3

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

Steffen Joeris reported that Blender's BPY_interface calls
PySys_SetArgv() in such a way that Python prepends sys.path with an
empty string.

Impact
======

A local attacker could entice a user to run "blender" from a directory
containing a specially crafted Python module, 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 Blender users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/blender-2.48a-r3"

References
==========

  [ 1 ] CVE-2008-4863
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4863

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

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

  http://security.gentoo.org/glsa/glsa-201001-07.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
https://bugs.gentoo.org.

License
=======

Copyright 2010 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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