Ubuntu Update for python-keystoneclient USN-1851-1

Solution
Please Install the Updated Packages.
Insight
Eoghan Glynn and Alex Meade discovered that python-keystoneclient did not properly perform expiry checks for the PKI tokens used in Keystone. If Keystone were setup to use PKI tokens (the default in Ubuntu 13.04), a previously authenticated user could continue to use a PKI token for longer than intended.
Affected
python-keystoneclient on Ubuntu 13.04