TrustZone Implementation Vulnerability: Unvalidated Input Allows Unauthorized Access to Secure Memory

TrustZone Implementation Vulnerability: Unvalidated Input Allows Unauthorized Access to Secure Memory

CVE-2023-4020 · CRITICAL Severity

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

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.

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