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AUSCERT External Security Bulletin Redistribution
Moderate: openstack-cinder, openstack-glance, and
openstack-nova security update
16 February 2017
AusCERT Security Bulletin Summary
Product: openstack-cinder, openstack-glance, and openstack-nova
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Impact/Access: Denial of Service -- Existing Account
CVE Names: CVE-2015-5162
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Red Hat Security Advisory
Synopsis: Moderate: openstack-cinder, openstack-glance, and openstack-nova security update
Advisory ID: RHSA-2017:0282-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0282.html
Issue date: 2017-02-15
CVE Names: CVE-2015-5162
An update for openstack-nova, openstack-cinder, openstack-glance, and
python-oslo-concurrency is now available for Red Hat Enterprise Linux
OpenStack Platform 7.0 (Kilo) for RHEL 7.
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 Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 - noarch
The Oslo concurrency library has utilities for safely running multi-thread,
multi-process applications using locking mechanisms, and for running
OpenStack Compute (nova) launches and schedules large networks of virtual
machines, creating a redundant and scalable cloud computing platform.
Compute provides the software, control panels, and APIs required to
orchestrate a cloud, including running virtual machine instances and
controlling access through users and projects.
OpenStack Image Service (glance) provides discovery, registration, and
delivery services for disk and server images. The service provides the
ability to copy or snapshot a server image, and immediately store it away.
Stored images can be used as a template to get new servers up and running
quickly and more consistently than installing a server operating system and
individually configuring additional services.
OpenStack Block Storage (cinder) manages block storage mounting and the
presentation of such mounted block storage to instances. The backend
physical storage can consist of local disks, or Fiber Channel, iSCSI, and
NFS mounts attached to Compute nodes. In addition, Block Storage supports
volume backups, and snapshots for temporary save and restore operations.
Programmatic management is available via Block Storage's API.
* A resource vulnerability in the OpenStack Compute (nova), Block Storage
(cinder), and Image (glance) services was found in their use of qemu-img.
An unprivileged user could consume as much as 4 GB of RAM on the compute
host by uploading a malicious image. This flaw could lead possibly to host
out-of-memory errors and negatively affect other running tenant instances.
oslo.concurrency has been updated to support process limits ('prlimit'),
which is needed to fix this flaw. (CVE-2015-5162)
This issue was discovered by Richard W.M. Jones (Red Hat).
* qemu-img calls were unrestricted by ulimit. oslo.concurrency has been
updated to add support for process limits ('prlimit'), which is needed to
fix the CVE-2015-5162 security vulnerability. (BZ#1383415)
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
5. Bugs fixed (https://bugzilla.redhat.com/):
1268303 - CVE-2015-5162 openstack-nova/glance/cinder: Malicious image may exhaust resources
1316791 - Instance was deleted successfully without detaching its volume, if nova-compute was killed during running "nova delete"
1349005 - cinder volume backup throws UnicodeDecodeError: 'ascii' and access denied
1365899 - Missing dependency of python-oslo-log and python-oslo-policy in openstack-cinder
1370598 - multipathd segfault during volume attach
1378906 - nova-scheduler fails to start because of the too big nova database
1380289 - [Backport] Block based migration doesn't work for instances that have a volume attached
1381533 - Multi-Ephemeral instance Live Block Migration fails silently
1383415 - [CVE-2015-5162] oslo.concurrency: Backport support for 'prlimit' parameter [OSP-7]
1386268 - NetApp Cinder driver: cloning operations are unsuccessful
1391970 - [tempest] test_delete_attached_volume fails in RHOS7
1394964 - Live migration with config-drive fails with InvalidSharedStorage error
1399760 - rbd snapshot delete fails if backend is missing file
1409820 - Creating Encrypted Volumes with Cinder(Ceph backend) gives false positive
1410046 - Multiple attempts made to delete iSCSI multipath path devices
1416884 - [7.0.z] nova creates an invalid ethernet/bridge interface definition in virsh xml
1420451 - revert Use stashed volume connector in _local_cleanup_bdm_volumes from openstack-nova-2015.1.4-28.el7ost
6. Package List:
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7:
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
The Red Hat security contact is <email@example.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
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