[Full-disclosure] [ GLSA 200701-08 ] Opera: Two remote code execution vulnerabilities

[Raphael Marichez]

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Gentoo Linux Security Advisory                           GLSA 200701-08
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Opera: Two remote code execution vulnerabilities
      Date: January 12, 2007
      Bugs: #160369
        ID: 200701-08

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Synopsis
========

Two vulnerabilities may allow the execution of arbitrary code.

Background
==========

Opera is a multi-platform web browser.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  www-client/opera       < 9.10                             >= 9.10

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

Christoph Deal discovered that JPEG files with a specially crafted DHT
marker can be exploited to cause a heap overflow. Furthermore, an
anonymous person discovered that Opera does not correctly handle
objects passed to the "createSVGTransformFromMatrix()" function.

Impact
======

An attacker could potentially exploit the vulnerabilities to execute
arbitrary code with the privileges of the user running Opera by
enticing a victim to open a specially crafted JPEG file or a website
containing malicious JavaScript code.

Workaround
==========

The vendor recommends disabling JavaScript to avoid the
"createSVGTransformFromMatrix" vulnerability. There is no known
workaround for the other vulnerability.

Resolution
==========

All Opera users should update to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/opera-9.10"

References
==========

  [ 1 ] Opera Advisory (createSVGTransformFromMatrix)
        http://www.opera.com/support/search/supsearch.dml?index=851
  [ 2 ] Opera Advisory (JPEG)
        http://www.opera.com/support/search/supsearch.dml?index=852
  [ 3 ] CVE-2007-0126
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0126
  [ 4 ] CVE-2007-0127
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0127

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

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

  http://security.gentoo.org/glsa/glsa-200701-08.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 at 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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