Ubuntu Security Notice 3448-1 - Boris Bobrov discovered that OpenStack Keystone incorrectly handled federation mapping when there are rules in which group-based assignments are not used. A remote authenticated user may receive all the roles assigned to a project regardless of the federation mapping, contrary to expectations.
c17d9dfabe42e69aeb2a88ad9d00135975ba69cdd7efa593c4a28685c4d015dd
==========================================================================
Ubuntu Security Notice USN-3448-1
October 11, 2017
keystone vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
OpenStack Keystone would allow unintended access over the network.
Software Description:
- keystone: OpenStack identity service
Details:
Boris Bobrov discovered that OpenStack Keystone incorrectly handled
federation mapping when there are rules in which group-based assignments
are not used. A remote authenticated user may receive all the roles
assigned to a project regardless of the federation mapping, contrary to
expectations.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS:
keystone 2:9.3.0-0ubuntu3.1
python-keystone 2:9.3.0-0ubuntu3.1
In general, a standard system update will make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3448-1
CVE-2017-2673
Package Information:
https://launchpad.net/ubuntu/+source/keystone/2:9.3.0-0ubuntu3.1