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Blender: Heap-based buffer overflow

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200601-08 / blender
Release Date January 13, 2006
Latest Revision January 13, 2006: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
media-gfx/blender < 2.40 >= 2.40 All supported architectures

Related bugreports: #118163

Synopsis

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

2.  Impact Information

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.

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-2.40"

4.  References



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Page updated January 13, 2006

Summary: This is a Gentoo Linux Security Advisory

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