CVE-2020-12457

{"id": "CVE-2020-12457", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/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": 3.9}]}, "published": "2020-08-21T14:15:10.997", "references": [{"url": "https://github.com/wolfSSL/wolfssl/pull/2927", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/wolfSSL/wolfssl/pull/2927", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in wolfSSL before 4.5.0. It mishandles the change_cipher_spec (CCS) message processing logic for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a crafted way involving more than one in a row, the server becomes stuck in the ProcessReply() loop, i.e., a denial of service."}, {"lang": "es", "value": "Se detect\u00f3 un problema en wolfSSL versiones anteriores a 4.5.0. Maneja inapropiadamente la l\u00f3gica de procesamiento de mensajes de change_cipher_spec (CCS) para TLS versi\u00f3n 1.3. Si un atacante env\u00eda mensajes ChangeCipherSpec de una manera dise\u00f1ada involucrando a m\u00e1s de uno en una fila, el servidor se atasca en el bucle de la funci\u00f3n ProcessReply(), es decir, una denegaci\u00f3n de servicio."}], "lastModified": "2024-11-21T04:59:44.380", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CA022760-AD25-4191-AAE9-28F3641BB2EB", "versionEndExcluding": "4.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}