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://www.opera.com/support/search/view/966/
http://www.opera.com/support/search/view/967/
http://www.opera.com/support/search/view/968/
http://www.vuxml.org/freebsd/71273c4d-a6ec-11df-8a8d-0008743bf21a.html
Insight
The following package is affected: opera