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://secunia.com/advisories/33852/
http://varnish.projects.linpro.no/wiki/WikiStart
http://www.vuxml.org/freebsd/bcee3989-d106-4f60-948f-835375634710.html
Insight
The following package is affected: varnish
