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Red Hat Enterprise Linux OpenStack Platform Important: DoS in Open vSwitch

red hat
Calendar Grey March 30, 2016
Scroller Redhat
Crucial security patch for openvswitch in RHEL OpenStack Platform 6.0 mitigating a critical buffer overflow vulnerability.
An update for openvswitch is now available for Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7

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

Summary

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.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat buffer overflow important RHEL Open vSwitch

References

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

Package List

Red Hat Enterprise Linux OpenStack Platform 6.0 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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:0524-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2016:0524.html
Issue date: 2016-03-30

Topic

An update for openvswitch is now available for Red Hat Enterprise LinuxOpenStack Platform 6.0 (Juno) for RHEL 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat buffer overflow important RHEL Open vSwitch

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7 - noarch, x86_64

Bugs Fixed

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

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