Bug 2117333 (CVE-2022-37394) - CVE-2022-37394 openstack-nova: Compute service fails to restart if the vnic_type of a bound port changed from direct to macvtap
Summary: CVE-2022-37394 openstack-nova: Compute service fails to restart if the vnic_t...
Keywords:
Status: NEW
Alias: CVE-2022-37394
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
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Whiteboard:
Depends On: 2117334 2120178 2120179 2154113
Blocks: 2114855
TreeView+ depends on / blocked
 
Reported: 2022-08-10 16:21 UTC by Avinash Hanwate
Modified: 2022-12-15 21:39 UTC (History)
13 users (show)

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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]


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