What is CVE-2018-14636?

CVE-2018-14636 is a medium-severity vulnerability in OpenStack Neutron, classified under Channel Accessible by Non-Endpoint. CVSS score: 5.3/10. Published 2018-09-10.

How severe is CVE-2018-14636?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in OpenStack Neutron

CVE-2018-14636

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.

EPSS: 0.012 (65.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Openstack Neutron — versions 13.0.0
The Openstack Project Openstack-neutron — versions 11.0.5, 13.0.0.0b2, 12.0.3

Weakness classification (CWE)

CWE-300 — Channel Accessible by Non-Endpoint

References

secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-14636?: CVE-2018-14636 is a medium-severity vulnerability in OpenStack Neutron, classified under Channel Accessible by Non-Endpoint. CVSS score: 5.3/10. Published 2018-09-10.
How severe is CVE-2018-14636?: Medium severity. CVSS v3 base score is 5.3 out of 10.