A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.
{
"nvd_published_at": "2018-07-26T14:29:00Z",
"severity": "MODERATE",
"cwe_ids": [
"CWE-362"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T18:10:02Z"
}