Insyde's Security Pledge

IhisiServicesSmm: Memory Corruption in FTBS SMI Handler.

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

CVE-2023-22612

A malicious host OS can invoke an Insyde SMI handler with malformed arguments, resulting in memory corruption in SMM.

kernel 5.1: Version 05.0A.11
kernel 5.1: Version 05.18.03
kernel 5.2: Version 05.28.03
kernel 5.3: Version 05.37.03
kernel 5.4: Version 05.45.01
kernel 5.5: Version 05.53.01

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