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Gentoo Linux Security Advisory                           GLSA 200710-31
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Opera: Multiple vulnerabilities
      Date: October 30, 2007
      Bugs: #196164
        ID: 200710-31

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Synopsis
========

Opera contains multiple vulnerabilities, which may allow the execution
of arbitrary code.

Background
==========

Opera is a multi-platform web browser.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  www-client/opera       < 9.24                             >= 9.24

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

Michael A. Puls II discovered an unspecified flaw when launching
external email or newsgroup clients (CVE-2007-5541). David Bloom
discovered that when displaying frames from different websites, the
same-origin policy is not correctly enforced (CVE-2007-5540).

Impact
======

An attacker could potentially exploit the first vulnerability to
execute arbitrary code with the privileges of the user running Opera by
enticing a user to visit a specially crafted URL. Note that this
vulnerability requires an external e-mail or newsgroup client
configured in Opera to be exploitable. The second vulnerability allows
an attacker to execute arbitrary script code in a user's browser
session in context of other sites or the theft of browser credentials.

Workaround
==========

There is no known workaround at this time for all these
vulnerabilities.

Resolution
==========

All Opera users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/opera-9.24"

References
==========

  [ 1 ] CVE-2007-5540
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5540
  [ 2 ] CVE-2007-5541
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5541

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

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

  http://security.gentoo.org/glsa/glsa-200710-31.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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