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Hash: SHA1

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Gentoo Linux Security Advisory                           GLSA 200712-22
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Opera: Multiple vulnerabilities
      Date: December 30, 2007
      Bugs: #202770
        ID: 200712-22

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Synopsis
========

Multiple vulnerabilities were discovered in Opera, allowing for the
execution of arbitrary code and cross domain scripting.

Background
==========

Opera is a fast Web browser that is available free of charge.

Affected packages
=================

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  www-client/opera       < 9.25                             >= 9.25

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

David Bloom reported two vulnerabilities where plug-ins (CVE-2007-6520)
and Rich text editing (CVE-2007-6522) could be used to allow cross
domain scripting. Alexander Klink (Cynops GmbH) discovered an issue
with TLS certificates (CVE-2007-6521). Gynvael Coldwind reported that
bitmaps might reveal random data from memory (CVE-2007-6524).

Impact
======

A remote attacker could exploit these vulnerabilites, possibly leading
to the execution of arbitrary code and cross domain scripting.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Opera users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/opera-9.25"

References
==========

  [ 1 ] CVE-2007-6520
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6520
  [ 2 ] CVE-2007-6521
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6521
  [ 3 ] CVE-2007-6522
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6522
  [ 4 ] CVE-2007-6524
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6524

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

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

  http://security.gentoo.org/glsa/glsa-200712-22.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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