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Red Hat Security Advisory 2016-0523-01

Red Hat Security Advisory 2016-0523-01
Posted Mar 30, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0523-01 - Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic. Security Fix: A buffer overflow flaw was discovered in the OVS processing of MPLS labels. A remote attacker able to deliver a frame containing a malicious MPLS label that would be processed by OVS could trigger the flaw and use the resulting memory corruption to cause a denial of service or, possibly, execute arbitrary code.

tags | advisory, remote, denial of service, overflow, arbitrary, protocol
systems | linux, redhat
advisories | CVE-2016-2074
MD5 | 60b996b8848aa868447398ce77e070f9

Red Hat Security Advisory 2016-0523-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: openvswitch security update
Advisory ID: RHSA-2016:0523-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0523.html
Issue date: 2016-03-30
CVE Names: CVE-2016-2074
=====================================================================

1. Summary:

An update for openvswitch is now available for Red Hat Enterprise Linux
OpenStack Platform 5.0 (Icehouse) for RHEL 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - noarch, x86_64

3. Description:

Open vSwitch provides standard network bridging functions and support for
the OpenFlow protocol for remote per-flow control of traffic.

Security Fix(es):

* A buffer overflow flaw was discovered in the OVS processing of MPLS
labels. A remote attacker able to deliver a frame containing a malicious
MPLS label that would be processed by OVS could trigger the flaw and use
the resulting memory corruption to cause a denial of service (DoS) or,
possibly, execute arbitrary code. (CVE-2016-2074)

Red Hat would like to thank the Open vSwitch project for reporting this
issue. Upstream acknowledges Kashyap Thimmaraju and Bhargava Shastry as the
original reporters.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1318553 - CVE-2016-2074 openvswitch: MPLS buffer overflow vulnerability

6. Package List:

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:

Source:
openvswitch-2.4.0-2.el7_2.src.rpm

noarch:
python-openvswitch-2.4.0-2.el7_2.noarch.rpm

x86_64:
openvswitch-2.4.0-2.el7_2.x86_64.rpm
openvswitch-debuginfo-2.4.0-2.el7_2.x86_64.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/

7. References:

https://access.redhat.com/security/cve/CVE-2016-2074
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2016 Red Hat, Inc.
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