Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 525
Alerts This Week
Warning Icon 1 525

Red Hat OpenStack 4.0 RHSA-2014:0899-01 Moderate Networking Issue

red hat
Calendar Grey July 17, 2014
Scroller Redhat
OpenStack Networking security notice with Moderate significance: improvements, corrections, and upgrades for users.
Updated openstack-neutron packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux OpenStack Platform 4.0

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/site/articles/11258

Summary

The openstack-neutron packages provide Openstack Networking (neutron), the virtual network service.
OpenStack Networking (neutron) is a pluggable, scalable, and API-driven system that provisions networking services to virtual machines. Its main function is to manage connectivity to and from virtual machines.
It was discovered that an authenticated user could add a security group rule with an invalid CIDR causing the openvswitch-agent process to fail and prevent further rules from being applied. (CVE-2014-0187)
It was discovered that an authenticated user could add an IPv6 private subnet to an L3 router causing L3-agent to break in a way that prevents further IPv4 addresses from being attached. Removal of the faulty network can only be done directly at the database level. Only Neutron setups using IPv6 and L3-agent are affected by this issue. (CVE-2014-4167)
This update also fixes several bugs and adds enhancements:
* Previously, running 'cloud-init' resulted in each instance sending requests to the metadata agent, which in turn queried Networking server. Consequently, booting multiple concurrent instances resulted in metadata agent queries producing heavy load for 'neutron-server'. This update addresses this issue by implementing a short lifetime cache for the metadata agent. Metadata agent now only queries Networking when data is not present in its cache, with the result of decreased load on Networking server during 'cloud-init' within instances. (BZ#1101494).
* With this update, Networking (neutron) packages now update the '/etc/sudoers.d/neutron' file. Consequently, any local changes have been relocated to the '/etc/sudoers.d/neutron.rpmsave' file, and will need to be merged back manually. To avoid the need for manual updates in future, please apply local changes in a separate 'sudoers.d' file. (BZ#1115406)
* Previously, Networking would fail to reliably communicate with Qpid. This behavior was due to an incorrect message subject set in the Qpid layer used by Networking. This update addresses this issue by setting a correct subject when sending a Qpid message. As a result, Networking now works reliably with the new Qpid server. (BZ#1108549)
All openstack-neutron users are advised to upgrade to these updated packages, which correct these issues and add these enhancements.

Topics%20covered

Topics Covered

security advisory moderate security issue Red Hat bug fix networking OpenStack

References

https://access.redhat.com/security/cve/CVE-2014-0187 https://access.redhat.com/security/cve/CVE-2014-4167 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux OpenStack Platform 4.0:
Source: openstack-neutron-2013.2.3-14.el6ost.src.rpm
noarch: openstack-neutron-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-bigswitch-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-brocade-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-cisco-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-hyperv-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-linuxbridge-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-mellanox-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-metaplugin-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-metering-agent-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-midonet-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-ml2-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-nec-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-nicira-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-openvswitch-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-plumgrid-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-ryu-2013.2.3-14.el6ost.noarch.rpm openstack-neutron-vpn-agent-2013.2.3-14.el6ost.noarch.rpm python-neutron-2013.2.3-14.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/#package


Advisory ID: RHSA-2014:0899-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2014:0899.html
Issue date: 2014-07-17

Topic

Updated openstack-neutron packages that fix two security issues, severalbugs, and add various enhancements are now available for Red Hat EnterpriseLinux OpenStack Platform 4.0.The Red Hat Security Response Team has rated this update as having Moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE links inthe References section.

Topics%20covered

Topics Covered

security advisory moderate security issue Red Hat bug fix networking OpenStack

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 4.0 - noarch

Bugs Fixed

1090132 - CVE-2014-0187 openstack-neutron: security groups bypass through invalid CIDR

1108549 - RHOSP 4 is incompatible with python-qpid >= 0.18-11

1110139 - CVE-2014-4167 openstack-neutron: L3-agent denial of service through IPv6 subnet

1115406 - Neutron packaging attempts to update sudoers config file avoiding usual procedure

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.