CVE-2022-32471

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

15/02/2023

Last modified:

05/05/2025

Description

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.00

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:insyde:insydeh2o::::::::	5.0 (including)	5.2.05.27.37 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.3 (including)	5.3.05.36.37 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.4 (including)	5.4.05.44.45 (excluding)
cpe:2.3:a:insyde:insydeh2o::::::::	5.5 (including)	5.5.05.52.45 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-32471

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools