=========================================================================Ubuntu Security Notice USN-1116-1
April 19, 2011
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 9.10
An unauthenticated remote user could crash the Kerberos service.
- krb5: MIT Kerberos services
Felipe Ortega discovered that kadmind did not correctly handle password
changing error conditions. An unauthenticated remote attacker could exploit
this to crash kadmind, leading to a denial of service.
The problem can be corrected by updating your system to the following