Summary
The remote host is missing an update as announced
via advisory SSA:2010-060-01.
Solution
https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2010-060-01
Insight
New seamonkey packages are available for Slackware 12.2, 13.0, and -current to fix security issues.
For more information, see:
http://www.mozilla.org/security/known-vulnerabilities/seamonkey20.html