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Blue Cloud: 2020:2034-05 Critical: Kubernetes API Privilege Escalation

red hat
Calendar Grey October 15, 2015
Dist Redhat Esm H88
Recent updates to openstack-neutron packages for RHEL address a significant security vulnerability concerning ACL evasion. It is crucial to maintain the integrity of your system.
Updated openstack-neutron packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 5.0, 6.0, and 7.0

Solution

Before applying this update, ensure all previously released errata relevant to your system have been applied.

This update is available through 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 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.
A race-condition flaw leading to ACL bypass was discovered in OpenStack Networking. An authenticated user could change the owner of a port after it was created but before firewall rules were applied, thus preventing firewall control checks from occurring. All OpenStack Networking deployments that used either the ML2 plug-in or a plug-in that relied on the security groups AMQP API were affected. (CVE-2015-5240)
Red Hat would like to thank the OpenStack project for reporting this issue. Upstream acknowledges Kevin Benton from Mirantis as the original reporter.
All openstack-neutron users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Topics%20covered

Topics Covered

security advisory security issue Red Hat moderate severity ACL bypass networking solution openstack-neutron

References

https://access.redhat.com/security/cve/CVE-2015-5240 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 6:
Source: openstack-neutron-2014.1.5-4.el6ost.src.rpm
noarch: openstack-neutron-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-bigswitch-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-brocade-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-cisco-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-embrane-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-hyperv-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-ibm-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-linuxbridge-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-mellanox-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-metaplugin-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-metering-agent-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-midonet-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-ml2-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-nec-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-nuage-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-ofagent-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-oneconvergence-nvsd-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-openvswitch-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-plumgrid-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-ryu-2014.1.5-4.el6ost.noarch.rpm openstack-neutron-vmware-2014.1.5-4.el6ost.noarch.rpm

Read the Full Advisory


Advisory ID: RHSA-2015:1909-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1909.html
Issue date: 2015-10-15

Topic

Updated openstack-neutron packages that fix one security issue are nowavailable for Red Hat Enterprise Linux OpenStack Platform 5.0, 6.0, and7.0.Red Hat Product Security has rated this update as having Moderate 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 security issue Red Hat moderate severity ACL bypass networking solution openstack-neutron

Relevant Releases Architectures

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

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

1258458 - CVE-2015-5240 openstack-neutron: Firewall rules bypass through port update

1266977 - ipset - Hash is full, cannot add more elements

1269201 - Backport request: Improve DVR scale performance

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