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.
References
Link Resource
https://bugs.launchpad.net/neutron/+bug/1734320 Issue Tracking Third Party Advisory
https://bugs.launchpad.net/neutron/+bug/1767422 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636 Issue Tracking Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

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

Updated: 2018-09-10T18:57:01

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


Link: CVE-2018-14636

JSON object: View

cve-icon NVD Information

Status : Modified

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

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


Link: CVE-2018-14636

JSON object: View

cve-icon Redhat Information

No data.