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Sicherheit: Pufferüberlauf in FreeType
Aktuelle Meldungen Distributionen
Name: Pufferüberlauf in FreeType
ID: 200705-22
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Mi, 30. Mai 2007, 20:53
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2754
Applikationen: Freetype

Originalnachricht


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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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