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Red Hat Enterprise Linux 7 RHSA-2016:0018-01 Important OpenStack Nova DoS

red hat
Calendar Grey January 11, 2016
Scroller Redhat
Crucial OpenStack Nova package upgrade accessible for Red Hat Enterprise Linux 7 addressing a significant security vulnerability.
Updated openstack-nova packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 5.0, 6.0, and 7.0 for Red Hat Enterprise Linux 7

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)
This 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 this issue.

Topics%20covered

Topics Covered

security advisory red hat important doS openstack-nova

References

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

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:
Source: openstack-nova-2014.1.5-15.el7ost.src.rpm
noarch: openstack-nova-2014.1.5-15.el7ost.noarch.rpm openstack-nova-api-2014.1.5-15.el7ost.noarch.rpm openstack-nova-cells-2014.1.5-15.el7ost.noarch.rpm openstack-nova-cert-2014.1.5-15.el7ost.noarch.rpm openstack-nova-common-2014.1.5-15.el7ost.noarch.rpm openstack-nova-compute-2014.1.5-15.el7ost.noarch.rpm openstack-nova-conductor-2014.1.5-15.el7ost.noarch.rpm openstack-nova-console-2014.1.5-15.el7ost.noarch.rpm openstack-nova-doc-2014.1.5-15.el7ost.noarch.rpm openstack-nova-network-2014.1.5-15.el7ost.noarch.rpm openstack-nova-novncproxy-2014.1.5-15.el7ost.noarch.rpm openstack-nova-objectstore-2014.1.5-15.el7ost.noarch.rpm openstack-nova-scheduler-2014.1.5-15.el7ost.noarch.rpm openstack-nova-serialproxy-2014.1.5-15.el7ost.noarch.rpm python-nova-2014.1.5-15.el7ost.noarch.rpm
Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7:
Source: openstack-nova-2014.2.3-48.el7ost.src.rpm
noarch: openstack-nova-2014.2.3-48.el7ost.noarch.rpm openstack-nova-api-2014.2.3-48.el7ost.noarch.rpm openstack-nova-cells-2014.2.3-48.el7ost.noarch.rpm openstack-nova-cert-2014.2.3-48.el7ost.noarch.rpm openstack-nova-common-2014.2.3-48.el7ost.noarch.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:0018-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2016:0018.html
Issue date: 2016-01-11

Topic

Updated openstack-nova packages that fix one security issue are nowavailable for Red Hat Enterprise Linux OpenStack Platform 5.0, 6.0,and 7.0 for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory red hat important doS openstack-nova

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - noarch

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

Red Hat Enterprise Linux OpenStack Platform 7.0 for RHEL 7 - noarch

Bugs Fixed

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

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