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Gentoo Linux Security Advisory                           GLSA 200408-22
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Mozilla, Firefox, Thunderbird, Galeon, Epiphany: New
            releases fix vulnerabilities
      Date: August 23, 2004
      Bugs: #57380, #59419
        ID: 200408-22

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Synopsis
========

New releases of Mozilla, Epiphany, Galeon, Mozilla Thunderbird, and
Mozilla Firefox fix several vulnerabilities, including remote DoS and
buffer overflows.

Background
==========

Mozilla is a popular web browser that includes a mail and newsreader.
Galeon and Epiphany are both web browsers that use gecko, the Mozilla
rendering engine. Mozilla Firefox is the next-generation browser from
the Mozilla project that incorporates advanced features that are yet to
be incorporated into Mozilla. Mozilla Thunderbird is the
next-generation mail client from the Mozilla project.

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

    -------------------------------------------------------------------
     Package                  /   Vulnerable   /            Unaffected
    -------------------------------------------------------------------
  1  mozilla                        < 1.7.2                   >= 1.7.2
  2  mozilla-firefox                < 0.9.3                   >= 0.9.3
  3  mozilla-thunderbird            < 0.7.3                   >= 0.7.3
  4  mozilla-bin                    < 1.7.2                   >= 1.7.2
  5  mozilla-firefox-bin            < 0.9.3                   >= 0.9.3
  6  mozilla-thunderbird-bin        < 0.7.3                   >= 0.7.3
  7  epiphany                     <  1.2.7-r1             >=  1.2.7-r1
  8  galeon                        < 1.3.17                  >= 1.3.17
    -------------------------------------------------------------------
     8 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Mozilla, Galeon, Epiphany, Mozilla Firefox and Mozilla Thunderbird
contain the following vulnerabilities:

* All Mozilla tools use libpng for graphics. This library contains a
  buffer overflow which may lead to arbitrary code execution.

* If a user imports a forged Certificate Authority (CA) certificate,
  it may overwrite and corrupt the valid CA already installed on the
  machine.

Mozilla, Mozilla Firefox, and other gecko-based browsers also contain a
bug in their caching which may allow the SSL icon to remain visible,
even when  the site in question is an insecure site.

Impact
======

Users of Mozilla, Mozilla Firefox, and other gecko-based browsers are
susceptible to SSL certificate spoofing, a Denial of Service against
legitimate SSL sites, crashes, and arbitrary code execution. Users of
Mozilla Thunderbird are susceptible to crashes and arbitrary code
execution via malicious e-mails.

Workaround
==========

There is no known workaround for most of these vulnerabilities. All
users are advised to upgrade to the latest available version.

Resolution
==========

All users should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv your-version
    # emerge your-version

References
==========

  [ 1 ] CAN-2004-0763
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0763
  [ 2 ] CAN-2004-0758
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0758
  [ 3 ] CAN-2004-0597
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0597
  [ 4 ] CAN-2004-0598
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0598
  [ 5 ] CAN-2004-0599
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0599

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

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

  http://security.gentoo.org/glsa/glsa-200408-22.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 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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