CVE-2022-37394
OpenStack Nova Changing vnic_type breaks compute service restart
3.3
LOW
CVSS 3.1
EPSS 0.27%
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.
How to fix CVE-2022-37394
To remediate CVE-2022-37394, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 23.2.2 or later
Is CVE-2022-37394 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 23.2.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |