CVE-2021-42059 Information

Description

An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41 Kernel 5.1 before 05.16.41 Kernel 5.2 before 05.26.41 Kernel 5.3 before 05.35.41 and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.

CVSS Vector

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

Reference

https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2022006 https://security.netapp.com/advisory/ntap-20220216-0008/ https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7