Updated seamonkey packages that fix several security issues are now
available for Red Hat Enterprise Linux 2.1, 3, and 4.
This update has been rated as having critical security impact by the Red
Hat Security Response Team.
SeaMonkey is an open source Web browser, advanced email and newsgroup
client, IRC chat client, and HTML editor.
A cross-site scripting flaw was found in the way SeaMonkey handled the
jar: URI scheme. It was possible for a malicious website to leverage this
flaw and conduct a cross-site scripting attack against a user running
Several flaws were found in the way SeaMonkey processed certain malformed
web content. A webpage containing malicious content could cause SeaMonkey
to crash, or potentially execute arbitrary code as the user running
A race condition existed when Seamonkey set the "window.location" property
for a webpage. This flaw could allow a webpage to set an arbitrary Referer
header, which may lead to a Cross-site Request Forgery (CSRF) attack
against websites that rely only on the Referer header for protection.
Users of SeaMonkey are advised to upgrade to these updated packages, which
contain backported patches to resolve these issues.