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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: New releases fix
vulnerabilities
Date: August 23, 2004
Bugs: #57380, #59419
ID: 200408-22

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Synopsis

New releases of Mozilla, 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.
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
-------------------------------------------------------------------
6 affected packages on all of their supported architectures.
-------------------------------------------------------------------

Description

Several vulnerabilities were found in Mozilla and Mozilla Firefox:

• Both browsers 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.

• An attacker may force the browser to execute arbitrary code from a
  malicious website by utilizing Mozilla's predictable cache file
  locations, and its ability to execute local files within the local
  zone.

Mozilla, 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.

Impact

Users of Mozilla and Mozilla Firefox 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
[email protected] 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