OpenStack Security Advisory: 2014-014 CVE: CVE-2014-0187 Date: April 22, 2014 Title: Neutron security groups bypass through invalid CIDR Reporters: Stephen Ma (HP) and Christoph Thiel (Deutsche Telekom) Products: Neutron Versions: 2013.1 to 2013.2.3, and 2014.1 Description: Stephen Ma from Hewlett Packard and Christoph Thiel from Deutsche Telekom reported a vulnerability in Neutron security groups. By creating a security group rule with an invalid CIDR, an authenticated user may break openvswitch-agent process, preventing further rules from being applied on the host. Note: removal of the faulty rule is not enough, the openvswitch-agent must be restarted. All Neutron setups using Open vSwitch are affected. Juno (development branch) fix: https://review.openstack.org/59212 Icehouse fix: https://review.openstack.org/88674 Havana fix: https://review.openstack.org/88057 Notes: This fix will be included in the juno-1 development milestone and in future 2013.2.4 and 2014.1.1 releases. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0187 https://launchpad.net/bugs/1300785 -- Tristan Cacqueray OpenStack Vulnerability Management Team