Synopsis :

The remote Fedora Core host is missing a security update.

Description :

Updated thunderbird packages that fix several security bugs are now
available for Fedora Core.

This update has been rated as having critical security impact by the
Fedora Security Response Team.

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the way Thunderbird processed certain
malformed JavaScript code. A web page containing malicious JavaScript
code could cause Thunderbird to crash or potentially execute arbitrary
code as the user running Thunderbird. (CVE-2007-2867, CVE-2007-2868)

Several denial of service flaws were found in the way Thunderbird
handled certain form and cookie data. A malicious web site that is
able to set arbitrary form and cookie data could prevent Thunderbird
from functioning properly. (CVE-2007-1362, CVE-2007-2869)

A flaw was found in the way Thunderbird processed certain APOP
authentication requests. By sending certain responses when Thunderbird
attempted to authenticate against an APOP server, a remote attacker
could potentially acquire certain portions of a user's authentication
credentials. (CVE-2007-1558)

A flaw was found in the way Thunderbird displayed certain web content.
A malicious web page could generate content which could overlay user
interface elements such as the hostname and security indicators,
tricking users into thinking they are visiting a different site.
(CVE-2007-2871)

Users of Thunderbird are advised to apply this update, which contains
Thunderbird version 1.5.0.12 that corrects these issues.

See also :

http://www.nessus.org/u?fcfb6d16

Solution :

Update the affected thunderbird and / or thunderbird-debuginfo
packages.

Risk factor :

High