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://bugs.splitbrain.org/index.php?do=details&id=820 http://bugs.splitbrain.org/index.php?do=details&id=823 http://bugs.splitbrain.org/index.php?do=details&id=825 http://www.vuxml.org/freebsd/23573650-f99a-11da-994e-00142a5f241c.html
Insight
The following package is affected: dokuwiki