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Gentoo: Opera Two remote code execution vulnerabilities Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Gentoo Two vulnerabilities may allow the execution of arbitrary code.
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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@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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