Blender: Heap-based buffer overflow — GLSA 200601-08

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

Affected Packages

media-gfx/blender on all architectures
Affected versions < 2.40
Unaffected versions >= 2.40

Background

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

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

Release Date
January 13, 2006

Latest Revision
January 13, 2006: 01

Severity
normal

Exploitable
remote

Bugzilla entries