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://docs.moodle.org/en/Moodle_1.9.9_release_notes http://www.vuxml.org/freebsd/66759ce6-7530-11df-9c33-000c29ba66d2.html
Insight
The following package is affected: moodle