# CVE-2018-14635: OpensStack Neutron Denial of Service Vulnerability

Source: https://junglewise.ai/threats/cve-2018-14635-opensstack-neutron-denial-of-service-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2018-09-10  
License: CC BY 4.0 with a link back

CVE-2018-14635 · Severity: low · CVSS 3 · Published 2018-09-10

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.

Technologies: [neutron (PyPI)](https://junglewise.ai/threats/technologies/pypi-neutron). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2018-14635 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2018-14635 being exploited in the wild.

**How severe is CVE-2018-14635?** Low severity, with a CVSS score of 3, published 10 September 2018.

**Which products and versions are affected?** neutron (PyPI) ECOSYSTEM:introduced=0,fixed=11.0.6,introduced=12.0.0,fixed=12.0.4, ECOSYSTEM:introduced=13.0.0.0b1,fixed=13.0.0.0b2.

**Is there a fix for CVE-2018-14635?** Yes. neutron (PyPI): upgrade to 12.0.4, 13.0.0.0b2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2018-14635?** Check whether you run neutron (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- neutron (PyPI): upgrade to 12.0.4, 13.0.0.0b2 or later

  ```sh
  pip install "neutron>=13.0.0.0b2"
  ```


## Affected products

- neutron (PyPI) ECOSYSTEM:introduced=0,fixed=11.0.6,introduced=12.0.0,fixed=12.0.4, ECOSYSTEM:introduced=13.0.0.0b1,fixed=13.0.0.0b2

## Identifiers

- CVE-2018-14635
- GHSA-x634-34m9-96mp
- PYSEC-2018-93

## Related threats

- [PYSEC-2026-1693 - OpenStack Neutron can use an incorrect ID during policy enforcement](https://junglewise.ai/threats/cve-2024-53916-openstack-neutron-can-use-an-incorrect-id-during-policy)
- [PYSEC-2026-1694 - Denial of service in neutron](https://junglewise.ai/threats/cve-2023-3637-denial-of-service-in-neutron)
- [PYSEC-2026-855 - openstack-neutron uncontrolled resource consumption flaw](https://junglewise.ai/threats/cve-2022-3277-openstack-neutron-uncontrolled-resource-consumption-flaw)
- [PYSEC-2026-851 - OpenStack Neutron Improper Authentication vulnerability](https://junglewise.ai/threats/cve-2014-0056-openstack-neutron-improper-authentication-vulnerability)
- [PYSEC-2026-853 - OpenStack Neutron Race condition vulnerability](https://junglewise.ai/threats/cve-2015-5240-openstack-neutron-race-condition-vulnerability)