CVE-2020-19861

{"id": "CVE-2020-19861", "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:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "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:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2022-01-21T15:15:07.607", "references": [{"url": "https://cwe.mitre.org/data/definitions/126.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/NLnetLabs/ldns/issues/51", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://cwe.mitre.org/data/definitions/126.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/NLnetLabs/ldns/issues/51", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage."}, {"lang": "es", "value": "Cuando es analizado un archivo de zona en ldns versi\u00f3n 1.7.1, la funci\u00f3n ldns_nsec3_salt_data es demasiado confiable para el valor de longitud obtenido del archivo de zona. Cuando es copiado el memcpy, los datos de bytes 0xfe - ldns_rdf_size(salt_rdf) pueden ser copiados, causando un filtrado de informaci\u00f3n por desbordamiento de pila"}], "lastModified": "2024-11-21T05:09:26.213", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nlnetlabs:ldns:1.7.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "861B4CD2-F963-496B-A68B-2021E8A01A3C"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}