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Red Hat OpenStack 5.0 Advisory RHSA-2014:1782-01 Critical VNC Flaw

red hat
Calendar Grey November 3, 2014
Dist Redhat Esm H88
Crucial revision for Red Hat's OpenStack, targeting vulnerabilities, defects, and upgrades with substantial effects.
Updated openstack-nova packages that fix two security issues, multiple bugs, and add enhancements are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat ...

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/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, managing networks, and controlling access through users and projects.
A race condition flaw was found in the way the nova VMware driver handled VNC port allocation. An authenticated user could use this flaw to gain unauthorized console access to instances belonging to other tenants by repeatedly spawning new instances. Note that only nova setups using the VMware driver and the VNC proxy service were affected. (CVE-2014-8750)
CVE-2014-2573, the fix for which was provided with the initial release of Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 7, describes a flaw in the nova VMware driver. An authenticated user could exceed their quota by placing an image into rescue and then deleting it, causing the rescue image to be left behind.
It was found that the fix for CVE-2014-2573 was incomplete. A virtual machine could be forced into the ERROR state from rescue by issuing a suspend command. Virtual machines deleted from the ERROR state would still leave the rescue image behind, allowing a user to exceed their quota. Note that only setups using the nova VMware driver were affected. (CVE-2014-3608)
The CVE-2014-3608 issue was discovered by Garth Mollett of Red Hat Product Security.
The openstack-nova packages have been upgraded to upstream version 2014.1.3, which provides a number of bug fixes and enhancements over the previous version. (BZ#1149737)
This update also fixes the following bug:
* Previously, unhandled database deadlock conditions triggered with some database configuration edge cases. "Deadlock found when trying to get lock; try restarting transaction" messages may have been logged, and database transactions may have been lost. With this update, actions are retried on deadlock conditions, resulting in robust database communication. (BZ#1141972)
All openstack-nova users are advised to upgrade to these updated packages, which correct these issues and add these enhancements.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix cloud platform OpenStack VNC access nova driver

References

https://access.redhat.com/security/cve/CVE-2014-3608 https://access.redhat.com/security/cve/CVE-2014-8750 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:
Source: openstack-nova-2014.1.3-4.el7ost.src.rpm
noarch: openstack-nova-2014.1.3-4.el7ost.noarch.rpm openstack-nova-api-2014.1.3-4.el7ost.noarch.rpm openstack-nova-cells-2014.1.3-4.el7ost.noarch.rpm openstack-nova-cert-2014.1.3-4.el7ost.noarch.rpm openstack-nova-common-2014.1.3-4.el7ost.noarch.rpm openstack-nova-compute-2014.1.3-4.el7ost.noarch.rpm openstack-nova-conductor-2014.1.3-4.el7ost.noarch.rpm openstack-nova-console-2014.1.3-4.el7ost.noarch.rpm openstack-nova-doc-2014.1.3-4.el7ost.noarch.rpm openstack-nova-network-2014.1.3-4.el7ost.noarch.rpm openstack-nova-novncproxy-2014.1.3-4.el7ost.noarch.rpm openstack-nova-objectstore-2014.1.3-4.el7ost.noarch.rpm openstack-nova-scheduler-2014.1.3-4.el7ost.noarch.rpm python-nova-2014.1.3-4.el7ost.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-2014:1782-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1782.html
Issue date: 2014-11-03

Topic

Updated openstack-nova packages that fix two security issues, multiplebugs, and add enhancements are now available for Red Hat Enterprise LinuxOpenStack Platform 5.0 for Red Hat Enterprise Linux 7.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 Red Hat bug fix cloud platform OpenStack VNC access nova driver

Relevant Releases Architectures

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

Bugs Fixed

1141972 - nova conductor's log is full of deadlock errors1148253 - CVE-2014-3608 openstack-nova: incomplete fix for CVE-2014-2573, Nova VMware driver still leaks rescued images

1149737 - Rebase openstack-nova to 2014.1.3

1152346 - CVE-2014-8750 openstack-nova: Nova VMware driver may connect VNC to another tenant's console

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