The remote host is missing an update as announced via advisory SSA:2010-067-01.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2010-067-01

New httpd packages are available for Slackware 12.0, 12.1, 12.2, 13.0, and -current to fix security issues. mod_ssl: A partial fix for the TLS renegotiation prefix injection attack by rejecting any client-initiated renegotiations. mod_proxy_ajp: Respond with HTTP_BAD_REQUEST when the body is not sent when request headers indicate a request body is incoming not a case of HTTP_INTERNAL_SERVER_ERROR. mod_isapi: Do not unload an isapi .dll module until the request processing is completed, avoiding orphaned callback pointers. [This is the most serious flaw, but does not affect Linux systems] 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-2009-3555 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0408 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0425