Vulnerability Details : CVE-2022-0216
Potential exploit
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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2022-0216
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-0216
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 44 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-0216
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
CWE ids for CVE-2022-0216
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2022-0216
-
https://bugzilla.redhat.com/show_bug.cgi?id=2036953
2036953 – (CVE-2022-0216) CVE-2022-0216 QEMU: use-after-free in lsi_do_msgout function in hw/scsi/lsi53c895a.cIssue Tracking;Third Party Advisory
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https://gitlab.com/qemu-project/qemu/-/issues/972
LSI SCSI Use After Free (CVE-2022-0216) (#972) · Issues · QEMU / QEMU · GitLabExploit;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTY7TVHX62OJWF6IOBCIGLR2N5K4QN3E/
[SECURITY] Fedora 37 Update: qemu-7.0.0-10.fc37 - package-announce - Fedora Mailing-Lists
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https://access.redhat.com/security/cve/CVE-2022-0216
CVE-2022-0216- Red Hat Customer PortalThird Party Advisory
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https://starlabs.sg/advisories/22/22-0216/
(CVE-2022-0216) QEMU LSI SCSI Use After Free | STAR LabsExploit;Third Party Advisory
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https://gitlab.com/qemu-project/qemu/-/commit/4367a20cc4
scsi/lsi53c895a: really fix use-after-free in lsi_do_msgout (CVE-2022-0216) (4367a20c) · Commits · QEMU / QEMU · GitLabPatch;Third Party Advisory
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