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CVE-2022-32473 Details

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the HddPassword shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA: CISA-ADPCVSS-B:7 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.insyde.com/security-pledge CVEVendor Advisory
https://www.insyde.com/security-pledge/SA-2023005 CVEVendor Advisory
https://www.insyde.com/security-pledge [email protected]Vendor Advisory
https://www.insyde.com/security-pledge/SA-2023005 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition[email protected]
CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionCISA-ADP

Affected Products

ProductVersions
insyde insydeh2o
>= 5.0, < 5.2.05.27.27
>= 5.3, < 5.3.05.36.27
>= 5.4, < 5.4.05.44.27
>= 5.5, < 5.5.05.52.27

CPE

  • cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-32473
NVD Published Date:
Feb 15, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2022-32473 Details - Not Deferred