full-disclosure - [ GLSA 200905-05 ] FreeType: Multiple vulnerabilities

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Date: Sun, 24 May 2009 20:02:03 +0200
From: Alex Legler <a3li@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200905-05 ] FreeType: Multiple
	vulnerabilities

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Gentoo Linux Security Advisory                           GLSA 200905-05
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: FreeType: Multiple vulnerabilities
      Date: May 24, 2009
      Bugs: #263032
        ID: 200905-05

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Synopsis
========

Multiple integer overflows in FreeType might allow for the remote
execution of arbitrary code or a Denial of Service.

Background
==========

FreeType is a high-quality and portable font engine.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  media-libs/freetype     < 2.3.9-r1                    >= 2.3.9-r1

Description
===========

Tavis Ormandy reported multiple integer overflows in the
cff_charset_compute_cids() function in cff/cffload.c, sfnt/tccmap.c and
the ft_smooth_render_generic() function in smooth/ftsmooth.c, possibly
leading to heap or stack-based buffer overflows.

Impact
======

A remote attacker could entice a user or automated system to open a
specially crafted font file, possibly resulting in the execution of
arbitrary code with the privileges of the user running the application,
or a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All FreeType users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/freetype-2.3.9-r1"

References
==========

  [ 1 ] CVE-2009-0946
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0946

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200905-05.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
http://bugs.gentoo.org.

License
=======

Copyright 2009 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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