Improper input validation in openstack-neutron
Priority LOW 34CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 fixed, 3 without a fix
Attack profile from CVSS 3.0 · CNA. Fix status from CNA, GitHub and Red Hat.
Summary
When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service could occur if an IP address, conflicting with existing guests or routers, is then assigned from outside of the allowed allocation pool. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3 and 11.0.5 are vulnerable.
Why it matters now
EPSS 0.02527 84th percentileScored 2026-11-07
Fix Partial neutron (PyPI): 13.0.0.0b2, 11.0.6, 12.0.4Red Hat: 3 advisoriesRed Hat: 3 fixed, 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| The Openstack Project | openstack-neutron | 13.0.0.0b2, 12.0.3, 11.0.5 | — | No fix listed | CNA |
| — | neutron (PyPI) | 13.0.0.0b1 to before 13.0.0.0b2 | 13.0.0.0b2 | Patch available | GHSA-x634-34m9-96mp |
| — | neutron (PyPI) | before 11.0.6 | 11.0.6 | Patch available | GHSA-x634-34m9-96mp |
| — | neutron (PyPI) | 12.0.0 to before 12.0.4 | 12.0.4 | Patch available | GHSA-x634-34m9-96mp |
- openstack-neutron VendorThe Openstack Project Affected 13.0.0.0b2, 12.0.3, 11.0.5 Fixed in — No fix listed CNA
- neutron (PyPI) Vendor— Affected 13.0.0.0b1 to before 13.0.0.0b2 Fixed in 13.0.0.0b2 Patch available GHSA-x634-34m9-96mp
- neutron (PyPI) Vendor— Affected before 11.0.6 Fixed in 11.0.6 Patch available GHSA-x634-34m9-96mp
- neutron (PyPI) Vendor— Affected 12.0.0 to before 12.0.4 Fixed in 12.0.4 Patch available GHSA-x634-34m9-96mp
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* | 10 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:12:*:*:*:*:*:*:* | 12 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* | 13 | Vulnerable | Red Hat |
| cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:* | 11.0.0 – 11.0.5; 12.0.0 – 12.0.3 | Vulnerable | OpenStack |
| cpe:2.3:a:openstack:neutron:13.0.0.0:b1:*:*:*:*:*:* | 13.0.0.0 b1 | Vulnerable | OpenStack |
- cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:12:*:*:*:*:*:*:* Versions 12 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* Versions 13 Vulnerable ·Red Hat
- cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:* Versions 11.0.0 – 11.0.5; 12.0.0 – 12.0.3 Vulnerable ·OpenStack
- cpe:2.3:a:openstack:neutron:13.0.0.0:b1:*:*:*:*:*:* Versions 13.0.0.0 b1 Vulnerable ·OpenStack
Remediation
- Fix · GHSA-x634-34m9-96mp neutron (PyPI) Fixed in 13.0.0.0b2 Advisory →
- Fix · GHSA-x634-34m9-96mp neutron (PyPI) Fixed in 11.0.6 Advisory →
- Fix · GHSA-x634-34m9-96mp neutron (PyPI) Fixed in 12.0.4 Advisory →
Red Hat 3 advisories
- RHSA-2018:3792 Released 2018-12-05 · Red Hat rating Moderateopenstack-neutron security update
- Red Hat OpenStack Platform 12.0 openstack-neutron-1:11.0.4-6.el7ost, openstack-neutron-common-1:11.0.4-6.el7ost, openstack-neutron-linuxbridge-1:11.0.4-6.el7ost +8
- RHSA-2018:2715 Released 2018-09-17 · Red Hat rating Moderateopenstack-neutron security and bug fix update
- Red Hat OpenStack Platform 10.0 openstack-neutron-1:9.4.1-28.el7ost, openstack-neutron-common-1:9.4.1-28.el7ost, openstack-neutron-linuxbridge-1:9.4.1-28.el7ost +8
- RHSA-2018:2710 Released 2018-09-17 · Red Hat rating Moderateopenstack-neutron security update
- Red Hat OpenStack Platform 13.0 openstack-neutron-1:12.0.3-5.el7ost, openstack-neutron-common-1:12.0.3-5.el7ost, openstack-neutron-linuxbridge-1:12.0.3-5.el7ost +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 8 (Liberty) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 9 (Mitaka) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 10.0 | Fixed | RHSA-2018:2715 |
| Red Hat OpenStack Platform 12.0 | Fixed | RHSA-2018:3792 |
| Red Hat OpenStack Platform 13.0 | Fixed | RHSA-2018:2710 |
Not affected: 2 products
- Red Hat Fuse 7
- Red Hat OpenStack Platform 14 (Rocky)
Timeline
- 2026-10-02 Threatist record created from CVE-2018-14635
- 2026-10-03 Alias added: GHSA-x634-34m9-96mp
References
Patch 2
Advisory 6
Sources
- CVE-2018-14635 · CVE Program
- CVE-2018-14635 · NVD
- FIRST EPSS
- GHSA-x634-34m9-96mp · GitHub Advisory Database · CC BY 4.0
- CVE-2018-14635 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences