Updated thunderbird packages that fix various bugs are now available for
Red Hat Enterprise Linux 4.
This update has been rated as having critical security impact by the Red
Hat Security Response Team.
[Updated 24 Apr 2006]
The erratum text has been updated to include the details of additional
issues that were fixed by these erratum packages but which were not public
at the time of release. No changes have been made to the packages.
Mozilla Thunderbird is a standalone mail and newsgroup client.
Several bugs were found in the way Thunderbird processes malformed
different open HTML mail message, possibly stealing sensitive information
support is disabled by default in Thunderbird. (CVE-2006-1731,
Several bugs were found in the way Thunderbird processes certain
page to steal sensitive information or install browser malware. Please
(CVE-2006-0292, CVE-2006-0296, CVE-2006-1727, CVE-2006-1728, CVE-2006-1733,
CVE-2006-1734, CVE-2006-1735, CVE-2006-1742)
Several bugs were found in the way Thunderbird processes malformed HTML
mail messages. A carefully crafted malicious HTML mail message could
cause the execution of arbitrary code as the user running Thunderbird.
(CVE-2006-0748, CVE-2006-0749, CVE-2006-1724, CVE-2006-1730, CVE-2006-1737,
CVE-2006-1738, CVE-2006-1739, CVE-2006-1790)
A bug was found in the way Thunderbird processes certain inline content
in HTML mail messages. It may be possible for a remote attacker to send a
carefully crafted mail message to the victim, which will fetch remote
content, even if Thunderbird is configured not to fetch remote content.
A bug was found in the way Thunderbird executes in-line mail forwarding. If
a user can be tricked into forwarding a maliciously crafted mail message as
the permissions of "chrome". (CVE-2006-0884)
Users of Thunderbird are advised to upgrade to these updated packages
containing Thunderbird version 1.0.8, which is not vulnerable to these