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://arthur.ath.cx/pipermail/ngircd-ml/2005-January/000228.html http://www.vuxml.org/freebsd/7f6dd1bd-7d99-11d9-a9e7-0001020eed82.html

The following package is affected: ngircd CVE-2005-0199 Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long MODE line that causes an incorrect length calculation, which leads to a buffer overflow.