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Alerts This Week
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Red Hat: RHSA-2016-0017 Important: OpenStack-Nova Security Risk

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Calendar Grey January 11, 2016
Scroller Redhat
Red Hat's latest OpenStack-Nova security advisory underscores critical vulnerabilities needing urgent attention, detailing risks, mitigations, and best practices for safeguarding systems
Updated openstack-nova packages that fix two security issues are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 6

Solution

Before applying this update, make sure 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

Summary

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.
A flaw was discovered in the OpenStack Compute (nova) snapshot feature when using the libvirt driver. A compute user could overwrite an attached instance disk with a malicious header specifying a backing file, and then request a snapshot, causing a file from the compute host to be leaked. This flaw only affects LVM or Ceph setups, or setups using filesystem storage with "use_cow_images = False". (CVE-2015-7548)
A vulnerability was discovered in the way OpenStack Compute (nova) networking handled security group updates; changes were not applied to already running VM instances. A remote attacker could use this flaw to access running VM instances. (CVE-2015-7713)
The CVE-2015-7548 issue was discovered by Matthew Booth of Red Hat OpenStack Engineering.
All openstack-nova users are advised to upgrade to these updated packages, which correct these issues.

Topics%20covered

Topics Covered

security advisory security issue Red Hat important RHEL cloud computing openstack-nova

References

https://access.redhat.com/security/cve/CVE-2015-7548 https://access.redhat.com/security/cve/CVE-2015-7713 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 6:
Source: openstack-nova-2014.1.5-16.el6ost.src.rpm
noarch: openstack-nova-2014.1.5-16.el6ost.noarch.rpm openstack-nova-api-2014.1.5-16.el6ost.noarch.rpm openstack-nova-cells-2014.1.5-16.el6ost.noarch.rpm openstack-nova-cert-2014.1.5-16.el6ost.noarch.rpm openstack-nova-common-2014.1.5-16.el6ost.noarch.rpm openstack-nova-compute-2014.1.5-16.el6ost.noarch.rpm openstack-nova-conductor-2014.1.5-16.el6ost.noarch.rpm openstack-nova-console-2014.1.5-16.el6ost.noarch.rpm openstack-nova-doc-2014.1.5-16.el6ost.noarch.rpm openstack-nova-network-2014.1.5-16.el6ost.noarch.rpm openstack-nova-novncproxy-2014.1.5-16.el6ost.noarch.rpm openstack-nova-objectstore-2014.1.5-16.el6ost.noarch.rpm openstack-nova-scheduler-2014.1.5-16.el6ost.noarch.rpm openstack-nova-serialproxy-2014.1.5-16.el6ost.noarch.rpm python-nova-2014.1.5-16.el6ost.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:0017-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2016:0017.html
Issue date: 2016-01-10

Topic

Updated openstack-nova packages that fix two security issues are nowavailable for Red Hat Enterprise Linux OpenStack Platform 5.0 for RedHat Enterprise Linux 6.Red Hat Product Security has rated this update as having Important securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat important RHEL cloud computing openstack-nova

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 6 - noarch

Bugs Fixed

1269119 - CVE-2015-7713 openstack-nova: network security group changes are not applied to running instances

1290511 - CVE-2015-7548 openstack-nova: Unprivileged API user can access host data using instance snapshot

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