CVE-2018-14636CWE-300

Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor

Medium · published September 10, 2018

CVSS v3.0
5.3
EPSS
1%
Percentile
67.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
5.3 · MEDIUM
Vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01173 · 67.0th percentile
Weakness
CWE-300 · Channel Accessible by Non-Endpoint
Published
2018-09-10T19:00Z
EPSS history
Timeline
  • 10 SEP 19:00Z
    Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor
    cvelistv5