CVE-2023-22613

high

Description

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.

References

https://www.insyde.com/security-pledge/SA-2023023

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

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

Details

Source: Mitre, NVD

Published: 2023-04-11

Updated: 2023-08-14

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: 8.8

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

Severity: High