The remote host is missing an update as announced via advisory SSA:2009-167-02.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2009-167-02

New apr-util (and apr) packages are available for Slackware 11.0, 12.0, 12.1, 12.2, and -current to fix security issues. The issues are with apr-util, but older Slackware releases will require a new version of the apr package as well. More details about the issues may be found in the Common Vulnerabilities and Exposures (CVE) database: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0023 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1955