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[Full-disclosure] [ GLSA 201001-07 ] Blender: Untrusted search path
From: Stefan Behte <craig_at_nospam>Date: Wed Jan 13 2010 - 22:08:43 GMT
To: gentoo-announce@gentoo.org, bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk, security-alerts@linuxsecurity.com
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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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