CVE-2014-4344: NULL Pointer Dereference

The accctxcont function in the SPNEGO acceptor in lib/gssapi/spnego/spnegomech.c in MIT Kerberos 5 aka krb5 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service NULL pointer dereference and application crash via an empty continuation token at a certain point...