Vulnerability Description
An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and then changing the vnic_type of the bound port to macvtap, an authenticated user may cause the compute service to fail to restart, resulting in a possible denial of service. Only Nova deployments configured with SR-IOV are affected.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openstack | Nova | < 23.2.2 |
References
- https://bugs.launchpad.net/ossa/+bug/1981813ExploitIssue TrackingThird Party Advisory
- https://review.opendev.org/c/openstack/nova/+/849985PatchThird Party Advisory
- https://review.opendev.org/c/openstack/nova/+/850003Third Party Advisory
- https://bugs.launchpad.net/ossa/+bug/1981813ExploitIssue TrackingThird Party Advisory
- https://review.opendev.org/c/openstack/nova/+/849985PatchThird Party Advisory
- https://review.opendev.org/c/openstack/nova/+/850003Third Party Advisory
FAQ
What is CVE-2022-37394?
CVE-2022-37394 is a vulnerability with a CVSS score of 3.3 (LOW). An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and ...
How severe is CVE-2022-37394?
CVE-2022-37394 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-37394?
Check the references section above for vendor advisories and patch information. Affected products include: Openstack Nova.