CVE-2021-34148

{"id": "CVE-2021-34148", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.1, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-09-07T07:15:07.420", "references": [{"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf", "tags": ["Technical Description", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf", "tags": ["Technical Description", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 devices does not properly handle the reception of LMP_max_slot with a greater ACL Length after completion of the LMP setup procedure, allowing attackers in radio range to trigger a denial of service (firmware crash) via a crafted LMP packet."}, {"lang": "es", "value": "Una implementaci\u00f3n de Bluetooth Classic en la pila WICED BT de Cypress versiones hasta 2.9.0 para los dispositivos CYW20735B1, no maneja apropiadamente la recepci\u00f3n de LMP_max_slot con una longitud ACL mayor despu\u00e9s de completar el procedimiento de configuraci\u00f3n de LMP, permitiendo a atacantes en el rango de radio desencadenar una denegaci\u00f3n de servicio (bloqueo del firmware) por medio de un paquete LMP dise\u00f1ado"}], "lastModified": "2024-11-21T06:09:57.433", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cypress:wireless_internet_connectivity_for_embedded_devices:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9A29026A-CED7-4BAD-8B64-B5E45A7A6A29", "versionEndIncluding": "2.9.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cypress:cyw20735b1:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F6EBADCA-0C07-4AA0-827D-881CD6FEBE49"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}