CVE-2018-14636
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2:13.0.0-1 |
| sid | Fixed | 2:13.0.0-1 |
| forky | Fixed | 2:13.0.0-1 |
| bullseye | Fixed | 2:13.0.0-1 |
| bookworm | Fixed | 2:13.0.0-1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-14636
- https://bugs.launchpad.net/neutron/+bug/1734320
- https://bugs.launchpad.net/neutron/+bug/1767422
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636
- https://github.com/openstack/neutron
- https://github.com/pypa/advisory-database/tree/main/vulns/neutron/PYSEC-2018-94.yaml
- https://www.suse.com/security/cve/CVE-2018-14636.html
- https://security-tracker.debian.org/tracker/CVE-2018-14636
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.