neutron is vulnerable to denial of service. Networks configuration cannot be performed on any compute nodes when two security groups with separate/overlapping port ranges are set, denying service to users.
www.openwall.com/lists/oss-security/2019/04/09/2
access.redhat.com/errata/RHSA-2019:0879
access.redhat.com/errata/RHSA-2019:0935
bugs.launchpad.net/ossa/+bug/1813007
github.com/openstack/neutron/commit/18c578aa10c19a6befdf1f1510645200f173eb44
review.openstack.org/#/q/topic:bug/1813007
security.openstack.org/ossa/OSSA-2019-002.html