Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 488
Alerts This Week
Warning Icon 1 488

RHEL 7: RHSA-2014:1942-01 Moderate: OpenStack-Neutron DoS Flaw

red hat
Calendar Grey December 2, 2014
Dist Redhat Esm H88
Red Hat releases a moderate advisory concerning openstack-neutron, focusing on a security vulnerability and defects within the RHEL OpenStack Platform.
Updated openstack-neutron packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 7

Solution

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

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 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. As of Red Hat Enterprise Linux OpenStack Platform 4.0, 'neutron' replaces 'quantum' as the core component of OpenStack Networking.
A denial of service flaw was found in the way neutron handled the 'dns_nameservers' parameter. By providing specially crafted 'dns_nameservers' values, an authenticated user could use this flaw to crash the neutron service. (CVE-2014-7821)
Red Hat would like to thank the OpenStack project for reporting this issue. Upstream acknowledges Henry Yamauchi, Charles Neill, and Michael Xin (Rackspace) as the original reporters.
This update also fixes the following bugs:
* Prior to this update, the network name and UUID were not sent to N1KV during the subnet creation process. Consequently, N1KV was unable to properly associate the network and subnet in its local configuration. This update addresses this issue by sending the required network name and UUID during subnet creation, with the result that they are now properly associated on the N1KV. (BZ#1118508)
* Previously, a rollback did not result in all entries being cleared from the N1KV-specific database tables, resulting in the presence of stale entries. This update addresses the issue by performing a proper cleanup of all N1KV tables. Consequently, stale entries are no longer left in the N1KV tables. (BZ#1124991)
* Previously, the N1KV OpenStack Networking (neutron) plug-in did not sent the subtype for overlay networks during the network segment pool creation process. This update addresses this issue by sending the required details during the creation process. (BZ#1130336)
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 moderate Red Hat DoS issue openstack-neutron networking services

References

https://access.redhat.com/security/cve/CVE-2014-7821 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:
Source: openstack-neutron-2014.1.3-11.el7ost.src.rpm
noarch: openstack-neutron-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-bigswitch-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-brocade-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-cisco-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-embrane-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-hyperv-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-ibm-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-linuxbridge-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-mellanox-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-metaplugin-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-metering-agent-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-midonet-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-ml2-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-nec-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-nuage-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-ofagent-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-oneconvergence-nvsd-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-openvswitch-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-plumgrid-2014.1.3-11.el7ost.noarch.rpm openstack-neutron-ryu-2014.1.3-11.el7ost.noarch.rpm

Read the Full Advisory


Advisory ID: RHSA-2014:1942-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1942.html
Issue date: 2014-12-02

Topic

Updated openstack-neutron packages that fix one security issue and severalbugs are now available for Red Hat Enterprise Linux OpenStack Platform 5.0for Red Hat Enterprise Linux 7.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 moderate Red Hat DoS issue openstack-neutron networking services

Relevant Releases Architectures

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

Bugs Fixed

1124991 - Clear entries in Cisco N1KV specific tables on rollback

1160350 - Neutron refuses to delete instance associated with multiple floating addresses

1162108 - Unable to delete 'active' namespaces via cleanup utility with "force" attribute

1163457 - CVE-2014-7821 openstack-neutron: DoS via maliciously crafted dns_nameservers1163470 - dhcp assignments aren't updated on neutron-dhcp-agent restart

Get the latest News and Insights

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