CVE-2020-36843

{"id": "CVE-2020-36843", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.5}]}, "published": "2025-03-13T06:15:34.043", "references": [{"url": "https://eprint.iacr.org/2020/1244", "source": "[email protected]"}, {"url": "https://github.com/str4d/ed25519-java/issues/82#issue-727629226", "source": "[email protected]"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-347"}]}], "descriptions": [{"lang": "en", "value": "The implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to create new valid signatures different from previous signatures for a known message."}, {"lang": "es", "value": "La implementaci\u00f3n de EdDSA en EdDSA-Java (tambi\u00e9n conocido como ed25519-java) hasta la versi\u00f3n 0.3.0 presenta maleabilidad de firmas y no cumple con la propiedad SUF-CMA (Fuerte Infalsificaci\u00f3n Existencial ante Ataques de Mensajes Elegidos). Esto permite a los atacantes crear nuevas firmas v\u00e1lidas, diferentes de las firmas previas, para un mensaje conocido."}], "lastModified": "2025-03-13T06:15:34.043", "sourceIdentifier": "[email protected]"}