GLSA 200811-04: Graphviz: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	Graphviz: User-assisted execution of arbitrary code
Date:	11/09/2008
Bugs:	#240636
ID:	200811-04

Synopsis

A buffer overflow in Graphviz might lead to user-assisted execution of arbitrary code via a DOT file.

Background

Graphviz is an open source graph visualization software.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-gfx/graphviz	< 2.20.3	>= 2.20.3	All supported architectures

Description

Roee Hay reported a stack-based buffer overflow in the push_subg() function in parser.y when processing a DOT file with a large number of Agraph_t elements.

Impact

A remote attacker could entice a user or automated system to open a specially crafted DOT file in an application using Graphviz, possibly leading to the execution of arbitrary code.

Workaround

There is no known workaround at this time.

Resolution

All Graphviz users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/graphviz-2.20.3"

References

CVE-2008-4555

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200811-04.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.