[RHSA-2015:1681-01] Moderate: openstack-swift security update

[bugzilla at redhat.com]

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                   Red Hat Security Advisory

Synopsis:          Moderate: openstack-swift security update
Advisory ID:       RHSA-2015:1681-01
Product:           Red Hat Enterprise Linux OpenStack Platform
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2015-1681.html
Issue date:        2015-08-24
CVE Names:         CVE-2015-1856 
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1. Summary:

Updated openstack-swift packages that fix one security issue are now
available for Red Hat Enterprise Linux OpenStack Platform 6.0.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7 - noarch

3. Description:

OpenStack Object Storage (swift) provides object storage in virtual
containers, which allows users to store and retrieve files (arbitrary
data). The service's distributed architecture supports horizontal scaling;
redundancy as failure-proofing is provided through software-based data
replication. Because Object Storage supports asynchronous eventual
consistency replication, it is well suited to multiple data-center
deployment.

A flaw was found in openstack-swift where an authenticated user may 
delete the most recent version of a versioned object regardless of 
ownership. To exploit this flaw an attacker most know the name of the 
object and have listing access to the x-versions-location container. 
(CVE-2015-1856)

Red Hat would like to thank the OpenStack project for reporting this 
issue. Upstream acknowledges Clay Gerrard of SwiftStack as the 
original reporter.

All users of openstack-swift are advised to upgrade to these updated
packages, which correct this issue. After installing this update, the
OpenStack Object Storage services will be restarted automatically.

4. Solution:

Before applying this update, ensure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

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

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

1209994 - CVE-2015-1856 OpenStack Swift: unauthorized deletion of versioned Swift object

6. Package List:

Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7:

Source:
openstack-swift-2.2.0-4.el7ost.src.rpm

noarch:
openstack-swift-2.2.0-4.el7ost.noarch.rpm
openstack-swift-account-2.2.0-4.el7ost.noarch.rpm
openstack-swift-container-2.2.0-4.el7ost.noarch.rpm
openstack-swift-doc-2.2.0-4.el7ost.noarch.rpm
openstack-swift-object-2.2.0-4.el7ost.noarch.rpm
openstack-swift-proxy-2.2.0-4.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-2015-1856
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2015 Red Hat, Inc.
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