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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: openstack-keystone security, bug fix, and enhancement update
Advisory ID:       RHSA-2017:1461-01
Product:           Red Hat Enterprise Linux OpenStack Platform
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:1461
Issue date:        2017-06-14
CVE Names:         CVE-2017-2673 
=====================================================================

1. Summary:

An update for openstack-keystone is now available for Red Hat OpenStack
Platform 9.0 (Mitaka).

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat OpenStack Platform 9.0 - noarch

3. Description:

The OpenStack Identity service (keystone) authenticates and authorizes
OpenStack users by keeping track of users and their permitted activities.
The Identity service supports multiple forms of authentication, including
user name and password credentials, token-based systems, and AWS-style
logins.

The following packages have been upgraded to a later upstream version:
openstack-keystone (9.3.0). (BZ#1427684)

Security Fix(es):

* An authorization-check flaw was discovered in federation configurations
of the OpenStack Identity service (keystone). An authenticated federated
user could request permissions to a project and unintentionally be granted
all related roles including administrative roles. (CVE-2017-2673)

Red Hat would like to thank the Openstack project for reporting this issue.
Upstream acknowledges Boris Bobrov (Mail.Ru) as the original reporter.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1427684 - Rebase openstack-keystone to 9.3.0
1430228 - [BackPort] Handle catalog backends that don't support all functions.
1439586 - CVE-2017-2673 openstack-keystone: Incorrect role assignment with federated Keystone

6. Package List:

Red Hat OpenStack Platform 9.0:

Source:
openstack-keystone-9.3.0-2.el7ost.src.rpm

noarch:
openstack-keystone-9.3.0-2.el7ost.noarch.rpm
python-keystone-9.3.0-2.el7ost.noarch.rpm
python-keystone-tests-9.3.0-2.el7ost.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-2673
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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