CVE-2023-4020 CRITICAL

CVE-2023-4020: Unvalidated input in Silicon Labs PSA Attestation service leads to secure memory access from non-secure memory

Vendor Silabs.com
Product GSDK
Weakness CWE-125
Published December 15, 2023
Last update September 26, 2024
View on NVD All CVEs

CVSS base score

9.0/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.

Key dates

02Disclosure timeline

December 15, 2023 CVE published
September 26, 2024 Record updated