When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service could occur if an IP address, conflicting with existing guests or routers, is then assigned from outside of the allowed allocation pool. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3 and 11.0.5 are vulnerable.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "neutron-common", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-dhcp-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-l3-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-linuxbridge-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-macvtap-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-metadata-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-metering-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-openvswitch-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-plugin-linuxbridge-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-plugin-ml2", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-plugin-openvswitch-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-plugin-sriov-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-server", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "neutron-sriov-agent", "binary_version": "2:12.0.3-0ubuntu1" }, { "binary_name": "python-neutron", "binary_version": "2:12.0.3-0ubuntu1" } ] }