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
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