Bug 2117333 (CVE-2022-37394)

Summary:	CVE-2022-37394 openstack-nova: Compute service fails to restart if the vnic_type of a bound port changed from direct to macvtap
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dasmith, eglynn, jhakimra, jjoyce, kchamart, lhh, mburns, mgarciac, nova-maint, sbauza, sgordon, spower, vromanso
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-04-26 17:39:43 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2117334, 2120178, 2120179, 2154113
Bug Blocks:	2114855

Description Avinash Hanwate 2022-08-10 16:21:58 UTC

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.

https://bugs.launchpad.net/ossa/+bug/1981813
https://review.opendev.org/c/openstack/nova/+/850003
https://review.opendev.org/c/openstack/nova/+/849985

Comment 1 Avinash Hanwate 2022-08-10 16:24:03 UTC

Created openstack-nova tracking bugs for this issue:

Affects: openstack-rdo [bug 2117334]

Comment 4 errata-xmlrpc 2023-04-26 12:11:11 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 16.2

Via RHSA-2023:1948 https://access.redhat.com/errata/RHSA-2023:1948

Comment 5 Product Security DevOps Team 2023-04-26 17:39:40 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-37394