Paper/Archive/CVE-2023-4020

CVE-2023-4020

silabs.com GSDK — Unvalidated input in Silicon Labs PSA Attestation service leads to secure memory access from non-secure memory

EPSS 0.6%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (NVD)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 47.1.471 × 209.4 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

GSDK1.0 – < 4.4.04.4.0CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Silabs (CNA)9.0CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

References

refgithub.com/SiliconLabs/gecko_sdk/releases refcommunity.silabs.com/069Vm0000004b95IAA