CVE-2021-42060 Information

Description

An issue was discovered in Insyde InsydeH2O Kernel 5.0 through 05.08.41 Kernel 5.1 through 05.16.41 Kernel 5.2 before 05.23.22 and Kernel 5.3 before 05.32.22. An Int15ServiceSmm SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.

CVSS Vector

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

Reference

https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2022007 https://security.netapp.com/advisory/ntap-20220217-0015/ https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.2