Insyde's Security Pledge

Recent Security Advisories

INSYDE-SA-2023002

Product

CVSS Score

Original Date

Last Revised

InsydeH2O

8.2

2023-02-14

Summary

DMA attacks on the FwBlockServiceSmm shared buffer used by SMM and non-SMM code could cause TOCTOU issues which could lead to corruption of SMRAM and escalation of privileges

Vulnerability Details

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVE-2022-32470

DMA attacks on the FwBlockServiceSmm shared buffer used by SMM and non-SMM code could cause TOCTOU issues which could lead to corruption of SMRAM and escalation of privileges. This issue was discovered by Insyde engineering.

Solution Information

Kernel 5.2: 05.27.27
Kernel 5.3: 05.36.27
Kernel 5.4: 05.44.27
Kernel 5.5: 05.52.27

CWE-367

Acknowledgements

Revision History

Revision #

Date

Description

1

2023-02-14

Initial Release