CVE-2016-2427

{"id": "CVE-2016-2427", "cveTags": [{"tags": ["disputed"], "sourceIdentifier": "security@android.com"}], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2016-04-18T00:59:33.383", "references": [{"url": "http://source.android.com/security/bulletin/2016-04-02.html", "tags": ["Vendor Advisory"], "source": "security@android.com"}, {"url": "http://source.android.com/security/bulletin/2016-04-02.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "The AES-GCM specification in RFC 5084, as used in Android 5.x and 6.x, recommends 12 octets for the aes-ICVlen parameter field, which might make it easier for attackers to defeat a cryptographic protection mechanism and discover an authentication key via a crafted application, aka internal bug 26234568. NOTE: The vendor disputes the existence of this potential issue in Android, stating \"This CVE was raised in error: it referred to the authentication tag size in GCM, whose default according to ASN.1 encoding (12 bytes) can lead to vulnerabilities. After careful consideration, it was decided that the insecure default value of 12 bytes was a default only for the encoding and not default anywhere else in Android, and hence no vulnerability existed."}, {"lang": "es", "value": "**DISPUTADA** La especificaci\u00f3n AES-GCM en RFC 5084,como es utilizado en Android 5.x y 6.x, recomienda 12 octetos para el campo de par\u00e1metro aes-ICVlen, lo que podr\u00eda facilitar a atacantes derrotar el mecanismo de protecci\u00f3n criptogr\u00e1fico y descubrir una clave de autenticaci\u00f3n a trav\u00e9s de una aplicaci\u00f3n manipulada, tambi\u00e9n conocido como error interno 26234568. NOTA: El vendedor disputa la existencia de este potencial problema en Android, indicando que \"Esta CVE fue levantada por error: se refer\u00eda al tama\u00f1o de la etiqueta de autenticaci\u00f3n en GCM, cuyo defecto de acuerdo con la codificaci\u00f3n ASN.1 (12 bytes) puede llevar a vulnerabilidades. Despu\u00e9s de una cuidadosa consideraci\u00f3n, se decidi\u00f3 que el valor del defecto de seguridad de 12 bytes era s\u00f3lo un fallo para la codificaci\u00f3n y no por defecto en cualquier otro lugar en Android, y por lo tanto no exist\u00eda vulnerabilidad.\""}], "lastModified": "2024-11-21T02:48:26.413", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:1.54:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "747F2DF4-1ABD-4E7A-8BB2-DDC9570601B8"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:google:android:5.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7C4E6353-B77A-464F-B7DE-932704003B33"}, {"criteria": "cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "77125688-2CCA-4990-ABB2-551D47CB0CDD"}, {"criteria": "cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7A8EC00-266C-409B-AD43-18E8DFCD6FE3"}, {"criteria": "cpe:2.3:o:google:android:5.1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B846C63A-7261-481E-B4A4-0D8C79E0D8A7"}, {"criteria": "cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E70C6D8D-C9C3-4D92-8DFC-71F59E068295"}, {"criteria": "cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "691FA41B-C2CE-413F-ABB1-0B22CB322807"}], "operator": "OR"}]}], "sourceIdentifier": "security@android.com"}