The auth_token middleware in the OpenStack Python client library for Keystone (aka python-keystoneclient) before 0.7.0 does not properly retrieve user tokens from memcache, which allows remote authenticated users to gain privileges in opportunistic circumstances via a large number of requests, related to an "interaction between eventlet and python-memcached."
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:2014.1-0ubuntu1", "binary_name": "keystone" }, { "binary_version": "1:2014.1-0ubuntu1", "binary_name": "keystone-doc" }, { "binary_version": "1:2014.1-0ubuntu1", "binary_name": "python-keystone" } ] }