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://nginx.net/CHANGES
http://www.vuxml.org/freebsd/29194cb8-6e9f-11e1-8376-f0def16c5c1b.html
Insight
The following packages are affected:
nginx
nginx-devel
