An issue was discovered in OpenStack Neutron 11.x before 11.0.7, 12.x before 12.0.6, and…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
An issue was discovered in OpenStack Neutron 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By creating two security groups with separate/overlapping port ranges, an authenticated user may prevent Neutron from being able to configure networks on any compute nodes where those security groups are present, because of an Open vSwitch (OVS) firewall KeyError. All Neutron deployments utilizing neutron-openvswitch-agent are affected.
Why it matters now
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) | 11.0.0 to before 11.0.7 | 11.0.7 | Patch available | GHSA-jr9m-v5qh-mh2j |
| — | neutron (PyPI) | 12.0.0 to before 12.0.6 | 12.0.6 | Patch available | GHSA-jr9m-v5qh-mh2j |
| — | neutron (PyPI) | 13.0.0 to before 13.0.3 | 13.0.3 | Patch available | GHSA-jr9m-v5qh-mh2j |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- neutron (PyPI) Vendor— Affected 11.0.0 to before 11.0.7 Fixed in 11.0.7 Patch available GHSA-jr9m-v5qh-mh2j
- neutron (PyPI) Vendor— Affected 12.0.0 to before 12.0.6 Fixed in 12.0.6 Patch available GHSA-jr9m-v5qh-mh2j
- neutron (PyPI) Vendor— Affected 13.0.0 to before 13.0.3 Fixed in 13.0.3 Patch available GHSA-jr9m-v5qh-mh2j
CPE configurations NVD · 3
Remediation
- Fix · GHSA-jr9m-v5qh-mh2j neutron (PyPI) Fixed in 11.0.7 Advisory →
- Fix · GHSA-jr9m-v5qh-mh2j neutron (PyPI) Fixed in 12.0.6 Advisory →
- Fix · GHSA-jr9m-v5qh-mh2j neutron (PyPI) Fixed in 13.0.3 Advisory →
Red Hat 2 advisories
- RHSA-2019:0879 Released 2019-04-30 · Red Hat rating Importantopenstack-neutron security update
- Red Hat OpenStack Platform 14.0 openstack-neutron-1:13.0.3-0.20190313155649.00b63be.el7ost, openstack-neutron-common-1:13.0.3-0.20190313155649.00b63be.el7ost, openstack-neutron-linuxbridge-1:13.0.3-0.20190313155649.00b63be.el7ost +7
- RHSA-2019:0935 Released 2019-04-30 · Red Hat rating Importantopenstack-neutron security and bug fix update
- Red Hat OpenStack Platform 13.0 openstack-neutron-1:12.0.5-11.el7ost, openstack-neutron-common-1:12.0.5-11.el7ost, openstack-neutron-linuxbridge-1:12.0.5-11.el7ost +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenStack Platform 13.0 | Fixed | RHSA-2019:0935 |
| Red Hat OpenStack Platform 14.0 | Fixed | RHSA-2019:0879 |
Not affected: 4 products
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 15 (Stein)
- Red Hat OpenStack Platform 8 (Liberty)
- Red Hat OpenStack Platform 9 (Mitaka)
Timeline
- 2026-10-02 Threatist record created from CVE-2019-10876
- 2026-10-03 Alias added: GHSA-jr9m-v5qh-mh2j
References
Advisory 7
- https://bugs.launchpad.net/ossa/+bug/1813007
- https://review.openstack.org/#/q/topic:bug/1813007
- https://security.openstack.org/ossa/OSSA-2019-002.html
- [oss-security] 20190409 [OSSA-2019-002] neutron-openvswitch-agent: Unable to install new flows on compute nodes when having broken security group rules (CVE-2019-10876)
- RHSA-2019:0935
- RHSA-2019:0879
- https://nvd.nist.gov/vuln/detail/CVE-2019-10876
Sources
- CVE-2019-10876 · CVE Program
- CVE-2019-10876 · NVD
- FIRST EPSS
- GHSA-jr9m-v5qh-mh2j · GitHub Advisory Database · CC BY 4.0
- CVE-2019-10876 · 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