SynopsisThe remote Red Hat host is missing a security update.
DescriptionUpdated thunderbird packages that fix several security 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.
Mozilla Thunderbird is a standalone mail and newsgroup client.
Two flaws were found in the way Thunderbird processed certain regular expressions. A malicious HTML email could cause a crash or possibly execute arbitrary code as the user running Thunderbird.
A flaw was found in the Thunderbird auto-update verification system.
An attacker who has the ability to spoof a victim's DNS could get Firefox to download and install malicious code. In order to exploit this issue an attacker would also need to get a victim to previously accept an unverifiable certificate. (CVE-2006-4567)
Daniel Bleichenbacher recently described an implementation error in RSA signature verification. For RSA keys with exponent 3 it is possible for an attacker to forge a signature that which would be incorrectly verified by the NSS library. (CVE-2006-4340)
A number of flaws were found in Thunderbird. A malicious HTML email could cause a crash or possibly execute arbitrary code as the user running Thunderbird. (CVE-2006-4571)
Users of Thunderbird are advised to upgrade to this update, which contains Thunderbird version 220.127.116.11 that corrects these issues.
SolutionUpdate the affected thunderbird package.