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[ GLSA 200407-15 ] Opera: Multiple spoofing vulnerabilities
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Tue, 20 Jul 2004 21:28:32 +0200

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Gentoo Linux Security Advisory                           GLSA 200407-15
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Opera: Multiple spoofing vulnerabilities
      Date: July 20, 2004
      Bugs: #56311, #56109
        ID: 200407-15

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Synopsis
========

Opera contains three vulnerabilities, allowing an attacker to
impersonate legitimate websites with URI obfuscation or to spoof
websites with frame injection.

Background
==========

Opera is a multi-platform web browser.

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

    -------------------------------------------------------------------
     Package        /   Vulnerable   /                      Unaffected
    -------------------------------------------------------------------
  1  net-www/opera        <= 7.52                              >= 7.53

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

Opera fails to remove illegal characters from an URI of a link and to
check that the target frame of a link belongs to the same website as
the link. Opera also updates the address bar before loading a page.
Additionally, Opera contains a certificate verification problem.

Impact
======

These vulnerabilities could allow an attacker to impersonate legitimate
websites to steal sensitive information from users. This could be done
by obfuscating the real URI of a link or by injecting a malicious frame
into an arbitrary frame of another browser window.

Workaround
==========

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version.

Resolution
==========

All Opera users should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv ">=net-www/opera-7.53"
    # emerge ">=net-www/opera-7.53"

References
==========

  [ 1 ] Bugtraq Announcement
        http://www.securityfocus.com/bid/10517
  [ 2 ] Secunia Advisory SA11978
        http://secunia.com/advisories/11978/
  [ 3 ] Secunia Advisory SA12028
        http://secunia.com/advisories/12028/
  [ 4 ] Opera Changelog
        http://www.opera.com/linux/changelogs/753/

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

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

    http://security.gentoo.org/glsa/glsa-200407-15.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 2004 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/1.0
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