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",
"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"
}
]
}