The remote host is missing an update as announced via advisory SSA:2007-152-02.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2007-152-02

New mozilla-firefox and seamonkey packages are available for Slackware 10.2, 11.0, and -current to fix security issues. New thunderbird packages are are available for Slackware 10.2 and 11.0 to fix security issues. More details about this issue may be found at these links: http://www.mozilla.org/projects/security/known-vulnerabilities.html#firefox http://www.mozilla.org/projects/security/known-vulnerabilities.html#seamonkey http://www.mozilla.org/projects/security/known-vulnerabilities.html#thunderbird