CVE-2022-37394

unknown

Published 2022-08-04 · Modified 2024-11-28

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CVSS v3

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CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v4 NEW

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not yet in upstream

VIR risk

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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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2:26.0.0~rc1-3`
sid	Fixed	`2:26.0.0~rc1-3`
forky	Fixed	`2:26.0.0~rc1-3`
bullseye	Affected	—
bookworm	Fixed	`2:26.0.0~rc1-3`

Package impact

Ecosystem	Package	Vulnerable	Fixed
PyPI	nova	`<23.2.2`	`23.2.2`
PyPI	nova	`>=24.0.0,<24.1.2`	`24.1.2`
PyPI	nova	`>=25.0.0,<25.0.2`	`25.0.2`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.