Summary
The remote host is missing an update to the system as announced in the referenced advisory.
Solution
Update your system with the appropriate patches or software upgrades.
http://tomcat.apache.org/security.html
http://tomcat.apache.org/security-5.html
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-7.html
http://www.vuxml.org/freebsd/152e4c7e-2a2e-11e2-99c7-00a0d181e71d.html
Insight
The following package is affected: tomcat