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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-02-15T00:00:00

Updated: 2024-08-03T07:39:51.245Z

Reserved: 2022-06-06T00:00:00

Link: CVE-2022-32471

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-02-15T02:15:09.623

Modified: 2024-11-21T07:06:23.867

Link: CVE-2022-32471

cve-icon Redhat

No data.