CVE-2017-2637: Red Hat Openstack

Critical severity, CVSS 10.0. EPSS: 4.6% chance of exploitation in the next 30 days.

A design flaw issue was found in the Red Hat OpenStack Platform director use of TripleO to enable libvirtd based live-migration. Libvirtd is deployed by default (by director) listening on 0.0.0.0 (all interfaces) with no-authentication or encryption. Anyone able to make a TCP connection to any compute host IP address, including 127.0.0.1, other loopback interface addresses, or in some cases possibly addresses that have been exposed beyond the management interface, could use this to open a virsh session to the libvirtd instance and gain control of virtual machine instances or possibly take over the host.

Affected products

• Red Hat Openstack: version 7.0 only; version 8 only; version 9 only; version 10 only

Published 2018-07-26. Last modified 2026-06-17.