RedHat Security Advisory RHSA-2009:1134

The remote host is missing updates announced in advisory RHSA-2009:1134. SeaMonkey is an open source Web browser, email and newsgroup client, IRC chat client, and HTML editor. A flaw was found in the way that SeaMonkey parsed malformed HTML mail messages. If a user opened a specially-crafted HTML mail message, it could cause SeaMonkey to crash or, possibly, to execute arbitrary code as the user running SeaMonkey. (CVE-2009-2210) All SeaMonkey users should upgrade to these updated packages, which correct this issue. After installing the update, SeaMonkey must be restarted for the changes to take effect.
Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date