Ubuntu 2034-1: OpenStack Keystone vulnerability

    Date25 Nov 2013
    Posted ByLinuxSecurity Advisories
    Keystone would improperly remove roles when it was configured to use the LDAP backend.
    Ubuntu Security Notice USN-2034-1
    November 25, 2013
    keystone vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 13.10
    - Ubuntu 13.04
    - Ubuntu 12.10
    Keystone would improperly remove roles when it was configured to use the
    LDAP backend.
    Software Description:
    - keystone: OpenStack identity service
    Brant Knudson discovered a logic error in the LDAP backend in Keystone
    where removing a role on a tenant for a user who does not have that role
    would instead add the role to the user. An authenticated user could use
    this to gain privileges. Ubuntu is not configured to use the LDAP Keystone
    backend by default.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 13.10:
      python-keystone                 1:2013.2-0ubuntu1.1
    Ubuntu 13.04:
      python-keystone                 1:2013.1.4-0ubuntu1.1
    Ubuntu 12.10:
      python-keystone                 2012.2.4-0ubuntu3.3
    In general, a standard system update will make all the necessary changes.
    Package Information:
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