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://marc.theaimsgroup.com/?l=horde-announce&m=113433346726097&w=2 http://www.vuxml.org/freebsd/01356ccc-6a87-11da-b96e-000fb586ba73.html
Insight
The following packages are affected:
horde
horde-php5