thunderbird security update

An updated Thunderbird package that fixes a security issue is now available
for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat
Security Response Team.

Thunderbird is a standalone mail and newsgroup client.

A bug was found in the way Thunderbird handled cookies when loading content
over HTTP regardless of the user's preference. It is possible that a
particular user could be tracked through the use of malicious mail messages
which load content over HTTP. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2005-0149 to this issue.

Users of Thunderbird are advised to upgrade to this updated package,
which contains Thunderbird version 1.0 and is not vulnerable to this issue.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

146315 - CAN-2005-0149 Mail responds to cookie requests

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0146
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0149