In Open vSwitch (OvS) v2.7.0, there is a buffer over-read while parsing the group mod OpenFlow message sent from the controller in `lib/ofp-util.c` in the function `ofputil_pull_ofp15_group_mod`.
https://mail.openvswitch.org/pipermail/ovs-dev/2017-May/332965.html
https://access.redhat.com/errata/RHSA-2017:2727
https://access.redhat.com/errata/RHSA-2017:2698
https://access.redhat.com/errata/RHSA-2017:2692
https://access.redhat.com/errata/RHSA-2017:2665
https://access.redhat.com/errata/RHSA-2017:2648