The remote host is missing an update as announced via advisory SSA:2005-201-01.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2005-201-01

New dnsmasq packages are available for Slackware 10.0, 10.1, and -current to fix security issues. An off-by-one overflow vulnerability may allow a DHCP client to create a denial of service condition. Additional code was also added to detect and defeat attempts to poison the DNS cache. More details about these issues may be found in the Common Vulnerabilities and Exposures (CVE) database: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0876 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0877