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The flash read-out protection (RDP) can be degraded from RDP level 2 (no access via debug interface) to level 1 (limited access via debug interface) by injecting a fault during the boot phase."}, {"lang": "es", "value": "Los dispositivos STMicroelectronics STM32L4 versi\u00f3n hasta el 2020-10-19, presentan un control de acceso incorrecto. La protecci\u00f3n de lectura flash (RDP) se puede degradar desde el nivel 2 de RDP (sin acceso por medio de la interfaz de depuraci\u00f3n) al nivel 1 (acceso limitado por medio de la interfaz de depuraci\u00f3n) inyectando un fallo durante la fase de arranque"}], "id": "CVE-2020-27212", "lastModified": "2021-06-08T19:17:26.110", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-21T12:15:07.730", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://eprint.iacr.org/2021/640"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.aisec.fraunhofer.de/en/FirmwareProtection.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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