CVE-2022-37394

Name	CVE-2022-37394
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	1016980

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
nova (PTS)	buster	2:18.1.0-6	vulnerable
	buster (security)	2:18.1.0-6+deb10u2	vulnerable
	bullseye (security), bullseye	2:22.0.1-2+deb11u1	vulnerable
	bookworm, sid	2:26.1.0-4	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nova	source	(unstable)	2:26.0.0~rc1-3			1016980

Notes

[bullseye] - nova <no-dsa> (Minor issue)
[buster] - nova <no-dsa> (Minor issue)
https://bugs.launchpad.net/ossa/+bug/1981813
https://review.opendev.org/c/openstack/nova/+/849985
https://review.opendev.org/c/openstack/nova/+/850003