Is CVE-2022-37394 in the CISA KEV catalog?

No. CVE-2022-37394 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-37394?

CVE-2022-37394 has a CVSS v3 base score of 3.3 (LOW).

What is the EPSS score for CVE-2022-37394?

CVE-2022-37394 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-37394?

Upgrade nova on debian 12 to 2:26.0.0~rc1-3 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2022-37394

LOW

3.3

CVSS v3

NVD

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

Remediation Available

novaDebian

Fixed in:2:26.0.0~rc1-3CVE-2022-37394

novaUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

nova-commonUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

python-novaUbuntu

Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1

Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1

python3-novaUbuntu

Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Patch1

review.opendev.org

Exploit1

bugs.launchpad.net

Third-Party Advisory1

review.opendev.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.