CVE-2021-29446

{"containers": {"cna": {"affected": [{"product": "jose-node-cjs-runtime", "vendor": "panva", "versions": [{"status": "affected", "version": "< 3.11.4"}]}], "descriptions": [{"lang": "en", "value": "jose-node-cjs-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `>=3.11.4`. Users should upgrade to `^3.11.4`."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-203", "description": "{\"CWE-203\":\"Observable Discrepancy\"}", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-04-16T22:00:15.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/panva/jose/security/advisories/GHSA-rvcw-f68w-8h8h"}, {"tags": ["x_refsource_MISC"], "url": "https://www.npmjs.com/package/jose-node-cjs-runtime"}], "source": {"advisory": "GHSA-rvcw-f68w-8h8h", "discovery": "UNKNOWN"}, "title": "Padding Oracle Attack due to Observable Timing Discrepancy in jose-node-cjs-runtime", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-29446", "STATE": "PUBLIC", "TITLE": "Padding Oracle Attack due to Observable Timing Discrepancy in jose-node-cjs-runtime"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "jose-node-cjs-runtime", "version": {"version_data": [{"version_value": "< 3.11.4"}]}}]}, "vendor_name": "panva"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "jose-node-cjs-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `>=3.11.4`. Users should upgrade to `^3.11.4`."}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "{\"CWE-203\":\"Observable Discrepancy\"}"}]}]}, "references": {"reference_data": [{"name": "https://github.com/panva/jose/security/advisories/GHSA-rvcw-f68w-8h8h", "refsource": "CONFIRM", "url": "https://github.com/panva/jose/security/advisories/GHSA-rvcw-f68w-8h8h"}, {"name": "https://www.npmjs.com/package/jose-node-cjs-runtime", "refsource": "MISC", "url": "https://www.npmjs.com/package/jose-node-cjs-runtime"}]}, "source": {"advisory": "GHSA-rvcw-f68w-8h8h", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T22:02:51.986Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/panva/jose/security/advisories/GHSA-rvcw-f68w-8h8h"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.npmjs.com/package/jose-node-cjs-runtime"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-29446", "datePublished": "2021-04-16T22:00:15.000Z", "dateReserved": "2021-03-30T00:00:00.000Z", "dateUpdated": "2024-08-03T22:02:51.986Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "jose-node-cjs-runtime", "vendor": "panva", "versions": [{"status": "affected", "version": "< 3.11.4"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:jose-node-cjs-runtime_project:jose-node-cjs-runtime:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "03D23205-6974-4025-A286-1F56B7EE9620", "versionEndExcluding": "3.11.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "jose-node-cjs-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `>=3.11.4`. Users should upgrade to `^3.11.4`."}, {"lang": "es", "value": "jose-node-cjs-runtime es un paquete npm que proporciona una serie de funciones criptogr\u00e1ficas.&#xa0;En versiones anteriores a 3.11.4, el descifrado del algoritmo AES_CBC_HMAC_SHA2 (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) siempre ejecutaba tanto la comprobaci\u00f3n de etiquetas HMAC como el descifrado CBC, si se presentaba un fallo \"JWEDecryptionFailed\" ser\u00eda lanzado.&#xa0;Pero una posible diferencia observable en el tiempo cuando se producir\u00eda un error de padding al descifrar el texto cifrado crea un padding oracle y un adversario podr\u00eda hacer uso de ese oracle para descifrar datos sin conocer la clave de descifrado emitiendo un promedio de 128*b llamadas al padding oracle (donde b es el n\u00famero de bytes en el bloque de texto cifrado).&#xa0;Se lanz\u00f3 un parche que garantiza que la etiqueta HMAC es comprobada antes de llevar a cabo el descifrado CBC.&#xa0;Las versiones corregidas son \"superiores o iguales a 3.11.4\".&#xa0;Los usuarios deben actualizar a \"^3.11.4\""}], "id": "CVE-2021-29446", "lastModified": "2026-06-17T03:47:39.480", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-16T22:15:14.140", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/panva/jose/security/advisories/GHSA-rvcw-f68w-8h8h"}, {"source": "security-advisories@github.com", "tags": ["Product", "Third Party Advisory"], "url": "https://www.npmjs.com/package/jose-node-cjs-runtime"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/panva/jose/security/advisories/GHSA-rvcw-f68w-8h8h"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Third Party Advisory"], "url": "https://www.npmjs.com/package/jose-node-cjs-runtime"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-203"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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