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Gentoo Linux Security Advisory                           GLSA 200601-08
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: Blender: Heap-based buffer overflow
      Date: January 13, 2006
      Bugs: #118163
        ID: 200601-08

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Synopsis
=======
Blender is vulnerable to a buffer overflow that may be exploited by
attackers to execute arbitrary code.

Background
=========
Blender is an open source software for 3D modeling, animation,
rendering, post-production, interactive creation and playback.

Affected packages
================
    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  media-gfx/blender       < 2.40                            >= 2.40

Description
==========
Damian Put has reported a flaw due to an integer overflow in the
"get_bhead()" function, leading to a heap overflow when processing
malformed ".blend" files.

Impact
=====
A remote attacker could entice a user into opening a specially crafted
".blend" file, resulting in the execution of arbitrary code with the
permissions of the user running Blender.

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-2.40"

References
=========
  [ 1 ] CVE-2005-4470
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200601-08

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 2006 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.

https://creativecommons.org/licenses/by-sa/2.0/