The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5596 http://www.vuxml.org/freebsd/bdec8dc2-0b3b-11e1-b722-001cc0476564.html

The following package is affected: gnutls CVE-2011-4128 Buffer overflow in the gnutls_session_get_data function in lib/gnutls_session.c in GnuTLS 2.12.x before 2.12.14 and 3.x before 3.0.7, when used on a client that performs nonstandard session resumption, allows remote TLS servers to cause a denial of service (application crash) via a large SessionTicket.