full-disclosure - [ GLSA 201201-08 ] FontForge: User-assisted execution of arbitrary code

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Message-ID: <4F1D4FAC.1070700@gentoo.org>
Date: Mon, 23 Jan 2012 07:16:44 -0500
From: Sean Amoss <ackle@...too.org>
To: gentoo-announce@...ts.gentoo.org
Cc: buqtraq@...urityfocus.com, security-alerts@...uxsecurity.com,
	full-disclosure@...ts.grok.org.uk
Subject: [ GLSA 201201-08 ] FontForge: User-assisted
 execution of arbitrary code

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Gentoo Linux Security Advisory                           GLSA 201201-08
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: FontForge: User-assisted execution of arbitrary code
     Date: January 23, 2012
     Bugs: #386293
       ID: 201201-08

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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
    -------------------------------------------------------------------
  1  media-gfx/fontforge       < 20110222-r1           >= 20110222-r1

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 -v ">=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
==========

[ 1 ] CVE-2010-4259
      http://nvd.nist.gov/nvd.cfm?cvename=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@...too.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2012 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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