CVE-2023-22616

high

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM.

References

https://www.insyde.com/security-pledge/SA-2023022

https://www.insyde.com/security-pledge

https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/

Details

Source: Mitre, NVD

Published: 2023-04-12

Updated: 2023-04-20

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High