CVE-2022-0216

Severity: medium (CVSS 4.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-08-26 · updated 2026-06-17
Weakness: CWE-416

Description

A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.

Affected products

Fedoraproject Fedora: 37
QEMU: before 6.0.0 — fixed in 6.0.0

How to fix

Upgrade to a fixed version: QEMU 6.0.0. Check the vendor advisory for mitigations.

References

https://access.redhat.com/security/cve/CVE-2022-0216
https://bugzilla.redhat.com/show_bug.cgi?id=2036953
https://gitlab.com/qemu-project/qemu/-/commit/4367a20cc4
https://gitlab.com/qemu-project/qemu/-/issues/972
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTY7TVHX62OJWF6IOBCIGLR2N5K4QN3E/
https://starlabs.sg/advisories/22/22-0216/
https://access.redhat.com/security/cve/CVE-2022-0216
https://bugzilla.redhat.com/show_bug.cgi?id=2036953
https://gitlab.com/qemu-project/qemu/-/commit/4367a20cc4
https://gitlab.com/qemu-project/qemu/-/issues/972
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTY7TVHX62OJWF6IOBCIGLR2N5K4QN3E/
https://starlabs.sg/advisories/22/22-0216/

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