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Red Hat Product Errata RHSA-2013:0657 - Security Advisory
Issued:
2013-03-21
Updated:
2013-03-21

RHSA-2013:0657 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: openstack-nova security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Updated openstack-nova packages that fix two security issues, several bugs,
and add an enhancement are now available for Red Hat OpenStack Folsom.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

The openstack-nova packages provide OpenStack Compute (code name Nova),
which provides services for provisioning, managing, and using virtual
machine instances.

A denial of service flaw was found in the Extensible Markup Language (XML)
parser used by Nova. A remote attacker could use this flaw to send a
specially-crafted request to a Nova API, causing Nova to consume an
excessive amount of CPU and memory. (CVE-2013-1664)

A flaw was found in the XML parser used by Nova. If a remote attacker
sent a specially-crafted request to a Nova API, it could cause Nova to
connect to external entities, causing a large amount of system load, or
allow an attacker to read files on the Nova server that are accessible to
the user running Nova. (CVE-2013-1665)

This update also fixes several bugs. The following are noteworthy changes:

  • In single node, all-in-one environments where all services (such as

Nova, Glance, and Keystone) are installed and run on a single system, after
a host reboot, some instances may have automatically started again, but
soon after, automatically shut down. "Instance shutdown by itself. Calling
the stop API" messages were logged to Nova logs (in "/var/log/nova/") in
these cases. (BZ#890512)

  • In environments using Quantum, after creating a network with two

subnets, removing an IP address (using "nova remove-fixed-ip"), and then
adding a fixed address (using "nova add-fixed-ip"), resulted in the
virtual machine having two IP addresses. (BZ#908373)

  • Prior to this update, after converting a downloaded image to raw, the

original, downloaded image (a large .part file) was not removed. After
installing this update, the following three options must be configured in
"/etc/nova/nova.conf" to correctly resolve this issue:

remove_unused_base_images=true
remove_unused_resized_minimum_age_seconds=60
remove_unused_original_minimum_age_seconds=60

(BZ#911103)

Additionally, this update adds the following enhancement:

  • The RHSA-2013:0658 openstack-cinder update implemented a Cinder driver

that allows Red Hat Storage to be used as a back-end for Cinder volumes.
This update adds a libvirt connector to Nova, which is a requirement for
using the new Cinder driver. Note that you must manually install the
glusterfs and glusterfs-fuse packages on the Nova nodes.

Additionally, when running Security-Enhanced Linux (SELinux) in Enforcing
mode, the latest selinux-policy packages provided by RHBA-2013:0618 must be
installed, otherwise denials will be logged when attempting to mount Red
Hat Storage volumes. (BZ#912384)

All users of openstack-nova are advised to upgrade to these updated
packages, which correct these issues and add this enhancement. After
installing the updated packages, the Nova running services will be
restarted automatically.

Solution

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

  • Red Hat OpenStack folsom x86_64

Fixes

  • BZ - 889868 - dnsmasq DHCP request blocked by default firewall rules
  • BZ - 890512 - Some Instances are shutoff after host reboot
  • BZ - 891347 - Use fallocate when copying disk images around in _base to improve copy performance and out of space errors
  • BZ - 891420 - Change default for compute node to poll for database connection indefinitely
  • BZ - 902409 - Network disassociation from a project doesn't work
  • BZ - 905113 - Backport qpid_hosts option - nova
  • BZ - 906783 - Quantum/Nova does not work with nova.virt.firewall.NoopFirewallDriver
  • BZ - 907178 - Deletion of the "default" security group fails without error
  • BZ - 908373 - Quantum: adding fixed ip to an instance on a network with two subnets using NOVA will results with two ip address
  • BZ - 910224 - CVE-2013-1664 CVE-2013-1665 OpenStack nova: XML entity parsing
  • BZ - 911103 - libvirt leaves large stale .part files on disk when downloading non raw images
  • BZ - 912384 - Backport GlusterFS connector from Grizzly
  • BZ - 912982 - CVE-2013-1665 Python xml bindings: External entity expansion in Python XML libraries inflicts potential security flaws and DoS vulnerabilities
  • BZ - 913613 - Some Instances are shutoff after they're suspended externally to nova
  • BZ - 913808 - CVE-2013-1664 Python xml bindings: Internal entity expansion in Python XML libraries inflicts DoS vulnerabilities
  • BZ - 914759 - nova-dhcpbridge does not support nova.conf and nova-dist.conf at the same time
  • BZ - 916241 - nova-dhcpbridge fails to startup

CVEs

  • CVE-2013-1664
  • CVE-2013-1665

References

  • https://access.redhat.com/security/updates/classification/#moderate
  • https://rhn.redhat.com/errata/RHSA-2013-0658.html
  • https://rhn.redhat.com/errata/RHBA-2013-0618.html
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat OpenStack folsom

SRPM
openstack-nova-2012.2.3-4.el6ost.src.rpm SHA-256: cdaeabb8849ee5eb833f5c64ada20faecae442aabd4f854d376ae5887458d119
x86_64
openstack-nova-2012.2.3-4.el6ost.noarch.rpm SHA-256: 94fb29185aaca09385b2a1bd8378457546678b0ee55b3b3a25725df592278f2c
openstack-nova-api-2012.2.3-4.el6ost.noarch.rpm SHA-256: 859e9c1f4540964277c003bf4032c80a425c8ea04582cd10fc042d217bb55fc3
openstack-nova-cert-2012.2.3-4.el6ost.noarch.rpm SHA-256: baf1e926407038e4896705d593dbd80846a379fed116d357785fefb219810874
openstack-nova-common-2012.2.3-4.el6ost.noarch.rpm SHA-256: 10bed0bfc9440c7e105d180d7267d4556349995e6694fc1a70ea505ec98a5ab5
openstack-nova-compute-2012.2.3-4.el6ost.noarch.rpm SHA-256: 2513f06d646ba0dd181f2098dcc40976e6b7f9dabb4868a4cea3a2ba0a42ea3e
openstack-nova-console-2012.2.3-4.el6ost.noarch.rpm SHA-256: 99621c30a3cfa71813018231737f42895ac3e2259907e7ab9dba3bdf78ad9344
openstack-nova-doc-2012.2.3-4.el6ost.noarch.rpm SHA-256: 37593514bf147797b78d1c8313c26dff28ada7dd42697099fbc7b27d3568f696
openstack-nova-network-2012.2.3-4.el6ost.noarch.rpm SHA-256: 5c42d76715e3257136924ea8aa44eaa76edafcb6e35c616c044472dcc4f8f840
openstack-nova-objectstore-2012.2.3-4.el6ost.noarch.rpm SHA-256: deaba5bc39c0d996a62105c655b2628e318ce35d99db82fb40e96469a1ac10c9
openstack-nova-scheduler-2012.2.3-4.el6ost.noarch.rpm SHA-256: e3fb2d35f6ed5b7bd7c42fa7dbecf87c2381ece4a37f931602b52991230156e9
openstack-nova-volume-2012.2.3-4.el6ost.noarch.rpm SHA-256: 690691789d3484927140d059412477a60ecf827747c636c5f262b815a87ce256
python-nova-2012.2.3-4.el6ost.noarch.rpm SHA-256: f9d2a9e0f15d94f6e996fa98a8a3f365d4cd4cca7bede685501a3f11cfbf4edb

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

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