The remote Oracle Linux host is missing one or more security updates.
From Red Hat Security Advisory 2011:1167 :
Updated SeaMonkey packages that fix several security issues are now
available for Red Hat Enterprise Linux 4.
The Red Hat Security Response Team has rated this update as having
critical security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.
SeaMonkey is an open source web browser, email and newsgroup client,
IRC chat client, and HTML editor.
Several flaws were found in the processing of malformed web content. A
web page containing malicious content could cause SeaMonkey to crash
or, potentially, execute arbitrary code with the privileges of the
user running SeaMonkey. (CVE-2011-2982)
access already freed memory, causing SeaMonkey to crash or,
potentially, execute arbitrary code with the privileges of the user
running SeaMonkey. (CVE-2011-2983)
All SeaMonkey users should upgrade to these updated packages, which
correct these issues. After installing the update, SeaMonkey must be
restarted for the changes to take effect.
See also :
Update the affected seamonkey packages.
Risk factor :
Critical / CVSS Base Score : 10.0
Public Exploit Available : true