What is CVE-2023-4020?

CVE-2023-4020 is a critical-severity vulnerability in Silabs.com Gsdk, classified under Out-of-bounds Read. CVSS score: 9.0/10. Published 2023-12-15.

How severe is CVE-2023-4020?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Out-of-bounds Read in Silabs.com Gsdk

CVE-2023-4020

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 regi…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (44.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

Affected products

Silabs.com Gsdk — versions 1.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read
CWE-787 — Out-of-bounds Write

References

github.com/SiliconLabs/gecko_sdk/releases
community.silabs.com/069Vm0000004b95IAA

Frequently asked questions

What is CVE-2023-4020?: CVE-2023-4020 is a critical-severity vulnerability in Silabs.com Gsdk, classified under Out-of-bounds Read. CVSS score: 9.0/10. Published 2023-12-15.
How severe is CVE-2023-4020?: Critical severity. CVSS v3 base score is 9.0 out of 10.