CVE-2022-37394 Affecting nova package, versions <2:21.2.4-0ubuntu2.2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-UBUNTU2004-NOVA-2975641
  • published5 Aug 2022
  • disclosed3 Aug 2022

Introduced: 3 Aug 2022

CVE-2022-37394  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 nova to version 2:21.2.4-0ubuntu2.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nova package and not the nova package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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 Base Scores

version 3.1