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full-disclosure-uk: [Full-disclosure] [ GLSA 200705-22 ] FreeTyp

[Full-disclosure] [ GLSA 200705-22 ] FreeType: Buffer overflow

From: Raphael Marichez <falco_at_nospam>
Date: Wed May 30 2007 - 18:50:08 GMT
To: gentoo-announce@gentoo.org

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200705-22
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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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