Insyde's Security Pledge

Recent Security Advisories

INSYDE-SA-2022043

Product

CVSS Score

Original Date

Last Revised

InsydeH2O

7.5

2022-11-08

Summary

DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents of parameter values (a TOCTOU attack).

Vulnerability Details

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

CVE-2022-30774

DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) . This issue was discovered by Insyde engineering during a security review. This was fixed in:

Solution Information

Kernel 5.2: 05.27.29
Kernel 5.3: 05.36.25
Kernel 5.4: 05.44.25
Kernel 5.5: 05.52.25

Acknowledgements

Revision History

Revision #

Date

Description

1

2022-11-08

Initial Release