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://archives.seul.org/or/announce/Jun-2005/msg00001.html http://www.vuxml.org/freebsd/691ed622-e499-11d9-a8bd-000cf18bbe54.html
Insight
The following package is affected: tor