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.
Published: 2022-08-03
Score: 3.3 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-6627 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.
Github GHSA Github GHSA GHSA-v725-c588-h936 OpenStack Nova Changing vnic_type breaks compute service restart
Ubuntu USN Ubuntu USN USN-5866-1 Nova vulnerabilities
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-03T10:29:20.965Z

Reserved: 2022-08-03T00:00:00.000Z

Link: CVE-2022-37394

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-03T07:15:07.757

Modified: 2024-11-21T07:14:54.783

Link: CVE-2022-37394

cve-icon Redhat

Severity : Low

Publid Date: 2022-08-03T00:00:00Z

Links: CVE-2022-37394 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses