CVE-2023-22615

high

Description

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI subfunction execution may corrupt SMRAM. An attacker can pass an address in the RCX save state register that overlaps SMRAM, thereby coercing an IHISI subfunction handler to overwrite private SMRAM.

References

https://www.insyde.com/security-pledge/SA-2023021

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

Details

Source: Mitre, NVD

Published: 2023-04-11

Updated: 2023-08-14

Risk Information

CVSS v2

Base Score: 6.2

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

Severity: Medium

CVSS v3

Base Score: 8.4

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

Severity: High