Kerberos is a network authentication protocol. It is designed to
provide strong authentication for client/server applications by using
secret-key cryptography. A free implementation of this protocol is
available from the Massachusetts Institute of Technology. Kerberos is
available in many commercial products as well.

This package includes patches for security advisories:

MITKRB5-SA-2009-004
    integer underflow in AES and RC4 decryption 
MITKRB5-SA-2009-003
    KDC denial of service in cross-realm referral processing 

For further information about these advisories, please see
http://web.mit.edu/kerberos/advisories/