CVE-2023-4020

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Source

https://cve.org/CVERecord?id=CVE-2023-4020

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4020.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-4020

Published

2023-12-15T20:37:20.123Z

Modified

2026-07-15T01:49:22.187103393Z

Severity

9.0 (Critical) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N CVSS Calculator

Summary

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

Details

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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4020.json",
    "cwe_ids": [
        "CWE-125",
        "CWE-787"
    ],
    "cna_assigner": "Silabs"
}

References

Affected packages

Git / github.com/siliconlabs/gecko_sdk

Affected ranges

Type

GIT

Repo

https://github.com/siliconlabs/gecko_sdk

Events

Introduced

Fixed

124fa19de8c8b3961d21c20857f7df32239786da

Database specific

{
    "cpe": "cpe:2.3:a:silabs:gecko_software_development_kit:*:*:*:*:*:*:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "extracted_events": [
        {
            "introduced": "1.0"
        },
        {
            "fixed": "4.4.0"
        },
        {
            "introduced": "1.0.0"
        }
    ]
}

Affected versions

v4.*

v4.2.0

v4.2.1

v4.2.2

v4.2.3

v4.3.0

v4.3.1

v4.3.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4020.json"