Jump to content
Compatible Support Forums
Sign in to follow this  

[RHSA-2014:0231-01] Moderate: openstack-nova security and bug fix update

Recommended Posts


Hash: SHA1



Red Hat Security Advisory


Synopsis: Moderate: openstack-nova security and bug fix update

Advisory ID: RHSA-2014:0231-01

Product: Red Hat OpenStack

Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0231.html

Issue date: 2014-03-04

CVE Names: CVE-2013-6419 CVE-2013-6437 CVE-2013-7048




1. Summary:


Updated openstack-nova packages that fix multiple security issues and

several bugs are now available for Red Hat Enterprise Linux OpenStack

Platform 4.0.


The Red Hat Security Response Team 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:


OpenStack 4 - noarch


3. Description:


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, managing

networks, and controlling access through users and projects.


It was discovered that the metadata agent in OpenStack Networking was

missing an authorization check on the device ID that is bound to a specific

port. A remote tenant could guess the instance ID bound to a port and

retrieve metadata of another tenant, resulting in information disclosure.

Note that only OpenStack Networking setups running neutron-metadata-agent

were affected. (CVE-2013-6419)


It was found that nova used directories that were writable to by all local

users to temporarily store live snapshots. A local attacker with access to

such a directory could use this flaw to read and modify the contents of

live snapshots. (CVE-2013-7048)


A flaw was found in the way the libvirt driver handled short-lived disk

back-up files on Compute nodes. An authenticated attacker could use this

flaw to create a large number of such files, exhausting all available space

on Compute node disks, and potentially causing a denial of service.

Note that only Compute setups using the libvirt driver were affected.



It was discovered that the libvirt driver did not properly handle live

migration of virtual machines. An authenticated attacker could use this

flaw to gain access to a snapshot of a migrated virtual machine. Note that

only setups using KVM live block migration were affected. (CVE-2013-7130)


Red Hat would like to thank the OpenStack Project for reporting

CVE-2013-6419, CVE-2013-6437, and CVE-2013-7130. Upstream acknowledges

Aaron Rosen of VMware as the original reporter of CVE-2013-6419, Phil Day

from HP as the original reporter of CVE-2013-6437, and Loganathan Parthipan

as the original reporter of CVE-2013-7130.


These updated openstack-nova packages have been upgraded to upstream

version 2013.2.2, which provides a number of bug fixes over the previous

version. (BZ#1065317)


Bug fixes:


* The GlusterFS volume connector in nova did not pass a port to libvirt for

the GlusterFS disk specification. Attaching a volume failed with a libvirt

error indicating the port field was missing. This update fixes this bug by

providing the default Gluster port in nova. (BZ#1020979)


* The database back end did not handle the 2013 MySQL error code (Lost

connection). The 2013 MySQL error code has been added to the collection of

known database error codes. (BZ#1060771)


* OpenStack Compute set the smbios product/vendor information to OpenStack

values, which Red Hat Satellite 5 did not recognize when processing

entitlements. (BZ#1059414)


* Prior to this update, nova-api did not pass the absolute path of the

configuration file to the api-paste library if a file with the same name

was found in the current directory. (BZ#1039554)


* The definition of the libvirt_info method in the RBD back-end class was

missing a positional argument that the base class defined. (BZ#1063445)


* Rebooting a host caused all of its instances to stop and change to the

SHUTDOWN power state. The unpause action was only allowed on instances with

the PAUSED power state. (BZ#1047863)


* The previous default of writing zeros over deleted volumes took a

significant amount of time. It is now possible to set a global

configuration setting to clear only a part of a volume, or to disable

clearing completely. Additionally, a new 'shred' capability is available to

overwrite volumes with random data instead of zeros. (BZ#1062377)


* In OpenStack Compute, low-level QPID debug log messages are no longer

shown by default. These previously appeared due to the 'level=debug'

parameter set in the nova.conf file. (BZ#1047849)


All openstack-nova users are advised to upgrade to these updated packages,

which correct these issues.


4. 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



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


1020979 - After configuring cinder for libgfapi, volumes create but do not attach

1039148 - CVE-2013-6419 OpenStack Neutron and Nova: Metadata queries from Neutron to Nova are not restricted by tenant

1039554 - Cannot resolve relative uri 'config:api-paste.ini'; no relative_to keyword argument given

1040786 - CVE-2013-7048 Openstack Nova: insecure directory permissions in snapshots

1043106 - CVE-2013-6437 openstack-nova: DoS through ephemeral disk backing files

1047849 - openstack-nova: remove qpid logs from the compute logs

1047863 - Openstack-Nova: Unpause instance after host reboot fails

1055400 - CVE-2013-7130 OpenStack nova: Live migration can leak root disk into ephemeral storage

1060771 - nova does not read sql db config option

1062377 - RFE: configurable volume clearing options for nova

1065317 - Rebase openstack-nova to 2013.2.2


6. Package List:


OpenStack 4:





















These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from



7. References:








8. Contact:


The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/


Copyright 2014 Red Hat, Inc.


Version: GnuPG v1.4.4 (GNU/Linux)










Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this