The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows…
Priority MEDIUM 41CWE-254Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Partial Red Hat: 2 fixed, 3 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended MAC-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via (1) a crafted DHCP discovery message or (2) crafted non-IP traffic.
Why it matters now
EPSS 0.03266 88th percentileScored 2026-11-07
Fix Partial neutron (PyPI): 7.1.0, 8.1.0Red Hat: 2 advisoriesRed Hat: 2 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | neutron (PyPI) | before 7.1.0 | 7.1.0 | Patch available | GHSA-9pp3-cvmq-9p22 |
| — | neutron (PyPI) | 8.0.0 to before 8.1.0 | 8.1.0 | Patch available | GHSA-9pp3-cvmq-9p22 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- neutron (PyPI) Vendor— Affected before 7.1.0 Fixed in 7.1.0 Patch available GHSA-9pp3-cvmq-9p22
- neutron (PyPI) Vendor— Affected 8.0.0 to before 8.1.0 Fixed in 8.1.0 Patch available GHSA-9pp3-cvmq-9p22
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openstack:neutron:7.0.0:*:*:*:*:*:*:* | 7.0.0 | Vulnerable | OpenStack |
| cpe:2.3:a:openstack:neutron:7.0.1:*:*:*:*:*:*:* | 7.0.1 | Vulnerable | OpenStack |
| cpe:2.3:a:openstack:neutron:7.0.2:*:*:*:*:*:*:* | 7.0.2 | Vulnerable | OpenStack |
| cpe:2.3:a:openstack:neutron:7.0.3:*:*:*:*:*:*:* | 7.0.3 | Vulnerable | OpenStack |
| cpe:2.3:a:openstack:neutron:7.0.4:*:*:*:*:*:*:* | 7.0.4 | Vulnerable | OpenStack |
| cpe:2.3:a:openstack:neutron:8.0.0:*:*:*:*:*:*:* | 8.0.0 | Vulnerable | OpenStack |
| cpe:2.3:a:openstack:neutron:8.1.0:*:*:*:*:*:*:* | 8.1.0 | Vulnerable | OpenStack |
- cpe:2.3:a:openstack:neutron:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·OpenStack
- cpe:2.3:a:openstack:neutron:7.0.1:*:*:*:*:*:*:* Versions 7.0.1 Vulnerable ·OpenStack
- cpe:2.3:a:openstack:neutron:7.0.2:*:*:*:*:*:*:* Versions 7.0.2 Vulnerable ·OpenStack
- cpe:2.3:a:openstack:neutron:7.0.3:*:*:*:*:*:*:* Versions 7.0.3 Vulnerable ·OpenStack
- cpe:2.3:a:openstack:neutron:7.0.4:*:*:*:*:*:*:* Versions 7.0.4 Vulnerable ·OpenStack
- cpe:2.3:a:openstack:neutron:8.0.0:*:*:*:*:*:*:* Versions 8.0.0 Vulnerable ·OpenStack
- cpe:2.3:a:openstack:neutron:8.1.0:*:*:*:*:*:*:* Versions 8.1.0 Vulnerable ·OpenStack
Remediation
- Fix · GHSA-9pp3-cvmq-9p22 neutron (PyPI) Fixed in 7.1.0 Advisory →
- Fix · GHSA-9pp3-cvmq-9p22 neutron (PyPI) Fixed in 8.1.0 Advisory →
Red Hat 2 advisories
- RHSA-2016:1473 Released 2016-07-20 · Red Hat rating Lowopenstack-neutron security and bug fix update
- Red Hat OpenStack Platform 8.0 (Liberty) openstack-neutron-1:7.0.4-11.el7ost, openstack-neutron-bigswitch-1:7.0.4-11.el7ost, openstack-neutron-brocade-1:7.0.4-11.el7ost +19
- RHSA-2016:1474 Released 2016-07-20 · Red Hat rating Lowopenstack-neutron security, bug fix, and enhancement update
- Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 openstack-neutron-2015.1.4-2.el7ost, openstack-neutron-bigswitch-2015.1.4-2.el7ost, openstack-neutron-brocade-2015.1.4-2.el7ost +22
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 9 (Mitaka) | Affected | No fix yet |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | Fixed | RHSA-2016:1474 |
| Red Hat OpenStack Platform 8.0 (Liberty) | Fixed | RHSA-2016:1473 |
Not affected: 1 product
- Red Hat OpenStack Platform 10 (Newton)
Timeline
- 2026-10-02 Threatist record created from CVE-2016-5363
- 2026-10-03 Alias added: GHSA-9pp3-cvmq-9p22
References
Advisory 4
Other 14
- https://review.openstack.org/#/c/299025/
- [oss-security] 20160610 CVE request for vulnerability in OpenStack Neutron
- [oss-security] 20160610 Re: CVE request for vulnerability in OpenStack Neutron
- https://bugs.launchpad.net/neutron/+bug/1558658
- https://review.openstack.org/#/c/299021/
- https://review.openstack.org/#/c/299023/
- https://github.com/openstack/neutron/commit/5853af9cba6733725d6c9ac0db644f426713f0cf
- https://github.com/openstack/neutron/commit/6a93ee8ac1a901c255e3475a24f1afc11d8bf80f
- https://github.com/openstack/neutron/commit/997d7b03fb7f5528f0a3ce70867b9dcd9321509e
- https://github.com/openstack/neutron/commit/fd5fd259a02156babdfcb12f66cde6ec9e7274ae
- https://github.com/openstack/neutron
- https://review.openstack.org/#/c/299021
- https://review.openstack.org/#/c/299023
- https://review.openstack.org/#/c/299025
More OpenStack Neutron vulnerabilities
- TI-2022-03027 Uncontrolled resource consumption in openstack-neutron CVSS 3.1MEDIUM 6.5
- TI-2015-07327 The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows… CVSS 3.0CRITICAL 9.1
- TI-2014-00181 The openvswitch-agent process in OpenStack Neutron 2013.1 before 2013.2.4 and 2014.1… CVSS 2.0HIGH 9.0
- TI-2021-16185 OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address… CVSS 3.1CRITICAL 9.1
- TI-2016-04653 The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows… CVSS 3.0HIGH 8.2
- TI-2013-05386 The default configuration in the Red Hat openstack-neutron package before 2013.2.3-7 does… CVSS 2.0HIGH 7.6
Sources
- CVE-2016-5363 · CVE Program
- CVE-2016-5363 · NVD
- FIRST EPSS
- GHSA-9pp3-cvmq-9p22 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-5363 · Red Hat security data · CC BY 4.0
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