[gentoo-announce] [ GLSA 201001-07 ] Blender: Untrusted search path

[news 28]

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Gentoo Linux Security Advisory GLSA 201001-07

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http://security.gentoo.org/

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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 ( -at -) 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