Insyde's Security Pledge
Recent Security Advisories
INSYDE-SA-2022046
Product
CVSS Score
Original Date
Last Revised
InsydeH2O
4.4
2022-11-08
Summary
DMA transactions which are targeted at input buffers used for the SmmResourceCheckDxe software SMI handler cause SMRAM corruption (a TOCTOU attack).
Vulnerability Details
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
DMA transactions which are targeted at input buffers used for the software SMI handler used by the SmmResourceCheckDxe driver could cause SMRAM corruption through a TOCTOU attack… This issue was discovered by Insyde engineering.
Solution Information
Kernel 5.2: 05.27.23
Kernel 5.3: 05.36.23
Kernel 5.4: 05.44.23
Kernel 5.5: 05.52.23
Acknowledgements
Revision History
Revision #
Date
Description
1
2022-11-08
Initial Release