The GnuTLS library implements Secure Sockets Layer (SSL v3) and Transport Layer Security (TLS v1) protocols.
A denial of service bug was found in the GnuTLS library versions prior to 1.0.25. A remote attacker could perform a carefully crafted TLS handshake against a service that uses the GnuTLS library causing the service to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-1431 to this issue.
All users of GnuTLS are advised to upgrade to these updated packages and to restart any services which use GnuTLS.