The remote host is missing an update to eggdrop announced via advisory DSA 1826-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201826-1

Several vulnerabilities have been discovered in eggdrop, an advanced IRC robot. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2007-2807 It was discovered that eggdrop is vulnerable to a buffer overflow, which could result in a remote user executing arbitrary code. The previous DSA (DSA-1448-1) did not fix the issue correctly. CVE-2009-1789 It was discovered that eggdrop is vulnerable to a denial of service attack, that allows remote attackers to cause a crash via a crafted PRIVMSG. For the stable distribution (lenny), these problems have been fixed in version 1.6.19-1.1+lenny1. For the old stable distribution (etch), these problems have been fixed in version 1.6.18-1etch2. For the unstable distribution (sid), this problem has been fixed in version 1.6.19-1.2 We recommend that you upgrade your eggdrop package.