# CVE-2018-14635: neutron-common: When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying...

CVE-2018-14635 is fixed in 15 products on 1 platform, first by neutron-common 2:12.0.3-0ubuntu1, released September 10, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-14635
- Priority: Routine
- CVSS: n/a (Negligible)
- EPSS: 0.0253
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 10, 2018

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | neutron-common Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-common 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-common-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-dhcp-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-dhcp-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-dhcp-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-l3-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-l3-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-l3-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-linuxbridge-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-linuxbridge-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-linuxbridge-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-macvtap-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-macvtap-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-macvtap-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-metadata-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-metadata-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-metadata-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-metering-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-metering-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-metering-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-openvswitch-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-openvswitch-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-openvswitch-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-plugin-linuxbridge-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-plugin-linuxbridge-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-plugin-linuxbridge-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-plugin-ml2 Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-plugin-ml2 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-plugin-ml2-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-plugin-openvswitch-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-plugin-openvswitch-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-plugin-openvswitch-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-plugin-sriov-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-plugin-sriov-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-plugin-sriov-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-server Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-server 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-server-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | neutron-sriov-agent Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [neutron-sriov-agent 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-neutron-sriov-agent-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |
| Linux | python-neutron Ubuntu 18.04.6 LTS (bionic) | 2:12.0.3-0ubuntu1 | [python-neutron 2:12.0.3-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-neutron-2-12.0.3-0ubuntu1.md) | Sep 10, 2018 |

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