CVE-2016-3120: NULL Pointer Dereference

The validateasrequest function in kdcutil.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.13.6 and 1.4.x before 1.14.3, when restrictanonymoustotgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service NU...