Insyde Security Advisory 2022006

Insyde ID Advisory Category Impact of Vulnerability Severity Rating Original Date Last Revised
INSYDE-SA-2022006 Software AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H 8.2 02/01/2022 02/01/2022


Stack overflow vulnerability that allows a local root user to access UEFI DXE driver and execute arbitrary code.

Vulnerability Details


This corresponds to CVE-2021-42059. It affects the DisplayTypeDxe driver. It was reported by the Binarly efiXplorer team. 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.


Insyde Software would like to thank Binarly for reporting this issue.

Revision History:

Revision Date Description
1.0 02/01/2022 Initial Release
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