The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. https://bugzilla.wikimedia.org/show_bug.cgi?id=26561 http://www.vuxml.org/freebsd/e177c410-1943-11e0-9d1c-000c29ba66d2.html

The following package is affected: mediawiki