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://secunia.com/advisories/19120/ http://aluigi.altervista.org/adv/freecivdos-adv.txt http://www.vuxml.org/freebsd/339fbbc1-4d23-11db-b48d-00508d6a62df.html

The following packages are affected: freeciv freeciv-gtk freeciv-gtk2 freeciv-nox11 CVE-2006-0047 packets.c in Freeciv 2.0 before 2.0.8 allows remote attackers to cause a denial of service (server crash) via crafted packets with negative compressed size values.