The remote host is missing an update as announced via advisory SSA:2004-026-01.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2004-026-01

GAIM is a GTK2-based Instant Messaging (IM) client. New GAIM packages are available for Slackware 9.0, 9.1, and -current. 12 vulnerabilities were found in the instant messenger GAIM that allow remote compromise. All sites using GAIM should upgrade to these new packages. These are based on GAIM 0.75 with patches for all 12 security issues. Thanks to Stefan Esser of e-matters GmbH for finding and reporting these bugs. For more details, see the e-matters GmbH advisory here: http://security.e-matters.de/advisories/012004.html