SARA / Free Tools / CVE / CVE-2018-14636

CVE-2018-14636 — Live-migrated instances are briefly able to inspect traffic for other instances

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.

CVSS
5.3 MEDIUM
EPSS
0.21% (top 56.30%)
CWE
CWE-300
Published
2018-09-10T19:00:00.000Z
Last modified
2024-08-05T09:38:13.238Z
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
The Openstack Projectopenstackneutron — 13.0.0.0b2, 12.0.3, 11.0.5

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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