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Vulnerability · Published Aug 3, 2022 · Assigned by mitre

CVE-2022-37394

Low 3.3

In plain English

A low-severity security flaw in the nova package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)3.3Low
Exploit odds (30 days)0.3%top 76.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12nova2:26.0.0~rc1-3DEBIAN-CVE-2022-37394
Debian:13nova2:26.0.0~rc1-3DEBIAN-CVE-2022-37394
Debian:14nova2:26.0.0~rc1-3DEBIAN-CVE-2022-37394
PyPInova23.2.2, 24.1.2, 25.0.2PYSEC-2026-882
PyPInova23.2.2GHSA-v725-c588-h936
PyPInova24.1.2GHSA-v725-c588-h936
PyPInova25.0.2GHSA-v725-c588-h936
Ubuntu:22.04:LTSnova3:25.1.0-0ubuntu1UBUNTU-CVE-2022-37394

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References