CVE-2019-13629

{"id": "CVE-2019-13629", "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": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "published": "2019-10-03T14:15:11.150", "references": [{"url": "http://www.openwall.com/lists/oss-security/2019/10/02/2", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://eprint.iacr.org/2011/232.pdf", "tags": ["Not Applicable"], "source": "cve@mitre.org"}, {"url": "https://minerva.crocs.fi.muni.cz/", "tags": ["Product"], "source": "cve@mitre.org"}, {"url": "https://tches.iacr.org/index.php/TCHES/article/view/7337", "tags": ["Not Applicable"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-203"}, {"lang": "en", "value": "CWE-327"}]}], "descriptions": [{"lang": "en", "value": "MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar."}, {"lang": "es", "value": "MatrixSSL versi\u00f3n 4.2.1 y anteriores, contienen un canal lateral de temporizaci\u00f3n en la generaci\u00f3n de firmas ECDSA. Esto permite a un atacante local o remoto, capaz de medir la duraci\u00f3n de cientos de miles de operaciones de firma, calcular la clave privada usada. El problema se presenta porque la multiplicaci\u00f3n escalar del archivo crypto/pubkey/ecc_math.c pierde la longitud de bits del scalar."}], "lastModified": "2021-07-21T11:39:23.747", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "83C90122-07C8-4F04-A5E1-7B96417BFB7E", "versionEndIncluding": "4.2.1"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}