GLSA 201201-08: FontForge: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	FontForge: User-assisted execution of arbitrary code
Date:	01/23/2012
Bugs:	#386293
ID:	201201-08

Synopsis

A stack-based buffer overflow flaw in FontForge could result in execution of arbitrary code or a Denial of Service.

Background

FontForge is a PostScript font editor and converter.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-gfx/fontforge	< 20110222-r1	>= 20110222-r1	All supported architectures

Description

FontForge is vulnerable to an error when processing the "CHARSET_REGISTRY" header in font files, which could cause a stack-based buffer overflow.

Impact

A remote attacker could entice a user to open a specially crafted BDF file using FontForge font editor, possibly resulting in the remote execution of arbitrary code with the privileges of the FontForge process, or a Denial of Service (application crash).

Workaround

There is no known workaround at this time.

Resolution

All FontForge users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=media-gfx/fontforge-20110222-r1"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since October 12, 2011. It is likely that your system is already no longer affected by this issue.

References

CVE-2010-4259

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201201-08.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.