Buffer overflow in the permitted function of GNOME gtop daemon (libgtop_daemon) in libgtop 1.0.13 and earlier may allow remote attackers to execute arbitrary code via long authentication data.
http://www.securityfocus.com/bid/3594
http://www.kb.cert.org/vuls/id/705771
http://www.debian.org/security/2003/dsa-301