The remote host is missing an update as announced via advisory SSA:2006-195-01.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2006-195-01

New Samba packages are available for Slackware 10.0, 10.1, 10.2, and -current to fix a security related (but in my own and also the Samba's team member who made their WHATSNEW.txt entry, 'minor') denial of service issue. More details about this issue may be found in the Common Vulnerabilities and Exposures (CVE) database: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3403