Insyde's Security Pledge

Recent Security Advisories

INSYDE-SA-2023035

Product

CVSS Score

Original Date

Last Revised

InsydeH2O

6.4

2023-05-05

Summary

Insufficient TSEG Overlap Checks.

Vulnerability Details

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

CVE-2023-27373

Due to insufficient input validation, an attacker can tamper with a runtime-accessible EFI variable to cause a dynamic BAR setting to overlap SMRAM.

Solution Information

Intel Mobile Platforms:
RapterLake: Version 05.45.02.0028
AlderLake-N: Version 05.44.45.0015
AlderLake: Version 05.44.34.0053
RocketLake: Version 05.42.52.0027
TigerLake: Version 05.43.12.0057
JasperLake: Version 05.43.01.0026

Acknowledgements

Insyde Software would like to thank Jeremy Boone (@uffeux) of the NCC Group for reporting the vulnerability and engaging in this coordinated disclosure.

Revision History

Revision #

Date

Description

1

2023-05-05

Initial Release