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CVE-2022-33982 Details

Description

DMA attacks on the parameter buffer used by the Int15ServiceSmm software SMI handler could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. DMA attacks on the parameter buffer used by the software SMI handler used by the driver Int15ServiceSmm could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. This issue was discovered by Insyde engineering during a security review. This issue is fixed in Kernel 5.2: 05.27.23, Kernel 5.3: 05.36.23, Kernel 5.4: 05.44.23 and Kernel 5.5: 05.52.23 CWE-367

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.4 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CNA: CISA-ADPCVSS-B:6.4 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf	CVE
https://www.insyde.com/security-pledge	CVE	Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022052	CVE	Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf	[email protected]
https://www.insyde.com/security-pledge	[email protected]	Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022052	[email protected]	Vendor Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-367	Time-of-check Time-of-use (TOCTOU) Race Condition	[email protected]
CWE-367	Time-of-check Time-of-use (TOCTOU) Race Condition	CISA-ADP

Affected Products

Product	Versions
insyde kernel	>= 5.2, < 5.2.05.27.23 >= 5.3, < 5.3.05.36.23 >= 5.4, < 5.4.05.44.23 >= 5.5, < 5.5.05.52.23
CPE cpe:2.3:a:insyde:kernel:::::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 17, 2026	CVE Modified	[email protected]
Apr 30, 2025	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 14, 2023	CVE Modified	[email protected]
Nov 18, 2022	Initial Analysis	[email protected]