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. http://sourceforge.net/project/shownotes.php?release_id=263573 http://www.vuxml.org/freebsd/e0070221-2dd8-11d9-a9e7-0001020eed82.html

The following package is affected: wzdftpd The installed version of wzdftpd is vulnerable to a denial of service attack.