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Blender: Untrusted search path

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201001-07 / blender
Release Date January 13, 2010
Latest Revision January 13, 2010: 01
Impact normal
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
media-gfx/blender < 2.48a-r3 >= 2.48a-r3 All supported architectures

Related bugreports: #245310

Synopsis

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

2.  Impact Information

Background

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

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.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Blender users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4.  References



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Page updated January 13, 2010

Summary: This is a Gentoo Linux Security Advisory

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