CVE-2018-14636

Name: CVE-2018-14636
Creator: NVD / NIST
Published: 2018-09-10T19:29:00.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.17%

Last modified Jun 17, 2026

CVE-2018-14636 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.17%

63.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-300

Affected Software

Vendor	Product	Versions	Update
Openstack	Neutron	>= 7.0.0, <= 11.0.4	—
Openstack	Neutron	>= 12.0.0, <= 12.0.2	—
Openstack	Neutron	13.0.0	B1

References

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

Timeline

Published: Sep 10, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-14636?

How severe is CVE-2018-14636?

Severity scoring for CVE-2018-14636 is pending analysis. The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2018-14636?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-14636?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST