Kerberos under Attack ? maybe..

We all know The Kerberos authentication protocol is intended to make networks more secure, Recently I read or someone told me that, a security hole in the mod_auth_kerb Apache module has made Kerberos prone to attacks. Attackers could used specially prepared Kerberos queries to crash web servers with version 5.0, 5.1 installed, the attacker might also be able plant and execute arbitrary code. Still not clear although other versions of the module may also potentially be affected. Anyone have more information regarding this please share