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Gentoo Linux Security Advisory                           GLSA 200701-08
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                                            https://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)
        https://www.opera.com:443/help
  [ 2 ] Opera Advisory (JPEG)
        https://www.opera.com:443/help
  [ 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:

  https://security.gentoo.org/glsa/200701-08

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
https://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.

https://creativecommons.org/licenses/by-sa/2.5/