Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2018-09-10T19:00:00

Updated: 2024-08-05T09:38:13.238Z

Reserved: 2018-07-27T00:00:00

Link: CVE-2018-14636

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-09-10T19:29:00.407

Modified: 2019-10-09T23:35:04.640

Link: CVE-2018-14636

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-04-27T00:00:00Z

Links: CVE-2018-14636 - Bugzilla