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full-disclosure-uk: [Full-disclosure] [ GLSA 201001-07 ] Blender

[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

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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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