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Ubuntu Security Notice USN-2255-1
June 25, 2014
neutron vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 LTS
– Ubuntu 13.10
Summary:
Several security issues were fixed in OpenStack Neutron.
Software Description:
– neutron: OpenStack Virtual Network Service
Details:
Darragh O’Reilly discovered that the Ubuntu packaging for OpenStack Neutron
did not properly set up its sudo configuration. If a different flaw was
found in OpenStack Neutron, this vulnerability could be used to escalate
privileges. (CVE-2013-6433)
Stephen Ma and Christoph Thiel discovered that the openvswitch-agent in
OpenStack Neutron did not properly perform input validation when creating
security group rules when specifying –remote-ip-prefix. A remote
authenticated attacker could exploit this to prevent application of
additional rules. (CVE-2014-0187)
Thiago Martins discovered that OpenStack Neutron would inappropriately
apply SNAT rules to IPv6 subnets when using the L3-agent. A remote
authenticated attacker could exploit this to prevent floating IPv4
addresses from being attached throughout the cloud. (CVE-2014-4167)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
python-neutron 1:2014.1-0ubuntu1.3
Ubuntu 13.10:
python-neutron 1:2013.2.3-0ubuntu1.5
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2255-1
CVE-2013-6433, CVE-2014-0187, CVE-2014-4167
Package Information:
https://launchpad.net/ubuntu/+source/neutron/1:2014.1-0ubuntu1.3
https://launchpad.net/ubuntu/+source/neutron/1:2013.2.3-0ubuntu1.5
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