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Ubuntu Security Notice USN-3448-1

Ubuntu Security Notice USN-3448-1
Posted Oct 11, 2017
Authored by Ubuntu | Site security.ubuntu.com

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.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2017-2673
MD5 | 4b946f8c91b209a310a7691047e91e30

Ubuntu Security Notice USN-3448-1

Change Mirror Download
==========================================================================
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


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