Home/CVE/Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief windo
CVE

CVE-2018-14636

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

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.

MEDIUM · CVSS 5.3 EPSS 0.00203
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-300Channel Accessible by Non-Endpoint
▤

Affected Products & Versions

3
openstack neutron>= 7.0.0 and <= 11.0.4
openstack neutron>= 12.0.0 and <= 12.0.2
openstack neutronall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI neutron MODERATE fixed in 13.0.0.0b2
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Sep 2018 · 07:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugs.launchpad.net/neutron/+bug/1734320Issue TrackingThird Party Advisory
https://bugs.launchpad.net/neutron/+bug/1767422Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636Issue TrackingThird Party Advisory
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