CVE-2018-14636

Published: 10 September 2018

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.

Priority

Low

CVSS 3 base score: 5.3

Status

Package Release Status
neutron
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(2:14.0.0~b1~git2018120609.2e720b158b-0ubuntu2)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(2:14.0.0~b1~git2018120609.2e720b158b-0ubuntu2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2:12.0.3-0ubuntu1)
Ubuntu 16.04 LTS (Xenial Xerus) Needed

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was needed)
Ubuntu 12.04 ESM (Precise Pangolin) Does not exist