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

http://security.gentoo.org/

Severity:	normal
Title:	Blender: Heap-based buffer overflow
Date:	01/13/2006
Bugs:	#118163
ID:	200601-08

Synopsis

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

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-gfx/blender	< 2.40	>= 2.40	All supported architectures

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

CVE-2005-4470

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200601-08.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.