GnuTLS has been proven to be vulnerable prior to version 2.2.5. The vulnerabilities can expose Denial-of-Service (DoS) and buffer overflow conditions. Further investigation is needed but maybe possible for an attacker to execute code on the affected system. Please see the advisory for more information: http://www.cert.fi/haavoittuvuudet/advisory-gnutls.html http://lists.gnu.org/archive/html/gnutls-devel/2008-05/msg00060.html