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Moderate Advisory RHSA-2014:1938-01 for DoS Vulnerability in Neutron

red hat
Calendar Grey December 2, 2014
Dist Redhat Esm H88
Caution notice for openstack-neutron tackling DoS vulnerabilities and correcting glitches in RHEL OpenStack version 5.0.
Updated openstack-neutron packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux OpenStack Platform 5.0 for Red Hat Enterprise Linux 6

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 bug:
* The "/var/log/neutron/" directory was world-readable. With this update, world-read permissions have been removed. (BZ#1149688)
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 bug fix DoS Red Hat Enterprise Linux Moderate networking service openstack-neutron

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 6:
Source: openstack-neutron-2014.1.3-12.el6ost.src.rpm
noarch: openstack-neutron-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-bigswitch-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-brocade-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-cisco-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-embrane-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-hyperv-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-ibm-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-linuxbridge-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-mellanox-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-metaplugin-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-metering-agent-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-midonet-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-ml2-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-nec-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-nuage-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-ofagent-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-oneconvergence-nvsd-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-openvswitch-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-plumgrid-2014.1.3-12.el6ost.noarch.rpm openstack-neutron-ryu-2014.1.3-12.el6ost.noarch.rpm

Read the Full Advisory


Advisory ID: RHSA-2014:1938-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1938.html
Issue date: 2014-12-02

Topic

Updated openstack-neutron packages that fix one security issue and one bugare now available for Red Hat Enterprise Linux OpenStack Platform 5.0 forRed Hat Enterprise Linux 6.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 bug fix DoS Red Hat Enterprise Linux Moderate networking service openstack-neutron

Relevant Releases Architectures

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

Bugs Fixed

1149688 - /var/log/neutron/ and all logs within it are world readable.

1163457 - CVE-2014-7821 openstack-neutron: DoS via maliciously crafted dns_nameservers

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