Ubuntu Update for keystone USN-1772-1

Solution
Please Install the Updated Packages.
Insight
Guang Yee discovered that Keystone would not always perform all verification checks when configured to use PKI. If the keystone server was configured to use PKI and services or users requested online verification, an attacker could potentially exploit this to bypass revocation checks. Keystone uses UUID tokens by default in Ubuntu.
Affected
keystone on Ubuntu 12.10
References