Insyde's Security Pledge
Recent Security Advisories
INSYDE-SA-2022006
Product
CVSS Score
Original Date
Last Revised
InsydeH2O
8.2
2022-02-01
Summary
Stack overflow vulnerability that allows a local root user to access UEFI DXE driver and execute arbitrary code.
Vulnerability Details
CVSS Vector: AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
This corresponds to CVE-2021-42059. It affects the DisplayTypeDxe driver. It was reported by the Binarly efiXplorer team.
Solution Information
It was fixed in the InsydeH2O kernel: Kernel 5.0 05.08.41, Kernel 5.1: 05.16.41, Kernel 5.2: 05.26.41, Kernel 5.3: 05.35.41, Kernel 5.4: 05.42.20, Kernel 5.5: unaffected.
Acknowledgements
Insyde Software would like to thank Binarly for reporting this issue.
Revision History
Revision #
Date
Description
1
2022-02-01
Initial Release