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://www.eggheads.org/news/2009/05/14/35 http://secunia.com/advisories/35104/ http://www.vuxml.org/freebsd/399f4cd7-4d59-11de-8811-0030843d3802.html

The following package is affected: eggdrop CVE-2009-1789 mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted PRIVMSG that causes an empty string to trigger a negative string length copy. NOTE: this issue exists because of an incorrect fix for CVE-2007-2807.