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.
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
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
Redhat Information
No data.