[ GLSA 200705-22 ] FreeType: Buffer overflow

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200705-22
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: FreeType: Buffer overflow
      Date: May 30, 2007
      Bugs: #179161
        ID: 200705-22

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Synopsis
========

A vulnerability has been discovered in FreeType allowing for the
execution of arbitrary code.

Background
==========

FreeType is a True Type Font rendering library.

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  media-libs/freetype     < 2.3.4-r2                    >= 2.3.4-r2
                                                                 < 2.0

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

Victor Stinner discovered a heap-based buffer overflow in the function
Get_VMetrics() in src/truetype/ttgload.c when processing TTF files with
a negative n_points attribute.

Impact
======

A remote attacker could entice a user to open a specially crafted TTF
file, possibly resulting in the execution of arbitrary code with the
privileges of the user running FreeType.

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-2.3.4-r2"

References
==========

  [ 1 ] CVE-2007-2754
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2754

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

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

  http://security.gentoo.org/glsa/glsa-200705-22.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
http://bugs.gentoo.org.

License
=======

Copyright 2007 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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