Red Hat: 2014:1942-01: openstack-neutron: Moderate Advisory

    Date02 Dec 2014
    Posted ByJoe Shakespeare
    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. [More...]
                       Red Hat Security Advisory
    Synopsis:          Moderate: openstack-neutron security and bug fix update
    Advisory ID:       RHSA-2014:1942-01
    Product:           Red Hat Enterprise Linux OpenStack Platform
    Advisory URL:
    Issue date:        2014-12-02
    CVE Names:         CVE-2014-7821 
    1. Summary:
    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.
    Red Hat Product Security has rated this update as having Moderate security
    impact. A Common Vulnerability Scoring System (CVSS) base score, which
    gives a detailed severity rating, is available from the CVE link in the
    References section.
    2. Relevant releases/architectures:
    Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - noarch
    3. Description:
    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.
    4. 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
    5. 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_nameservers
    1163470 - dhcp assignments aren't updated on neutron-dhcp-agent restart
    6. Package List:
    Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:
    These packages are GPG signed by Red Hat for security.  Our key and
    details on how to verify the signature are available from
    7. References:
    8. Contact:
    The Red Hat security contact is . More contact
    details at
    Copyright 2014 Red Hat, Inc.

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