CVE-2020-18778

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:libav:libav:12.3:*:*:*:*:*:*:*", "matchCriteriaId": "84452BF0-1880-44B1-8BFD-87AD5DFD625C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_p_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file."}, {"lang": "es", "value": "En Libav versi\u00f3n 12.3, se presenta una lectura excesiva del b\u00fafer en la regi\u00f3n heap de la memoria en la funci\u00f3n vc1_decode_p_mb_intfi en el archivo vc1_block.c, que permite a un atacante causar una denegaci\u00f3n de servicio por medio de un archivo dise\u00f1ado."}], "id": "CVE-2020-18778", "lastModified": "2026-06-17T02:59:28.967", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-23T22:15:28.487", "references": [{"source": "cve@mitre.org", "tags": ["Broken Link", "Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.libav.org/show_bug.cgi?id=1155"}, {"source": "cve@mitre.org", "tags": ["Technical Description"], "url": "https://cwe.mitre.org/data/definitions/126.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.libav.org/show_bug.cgi?id=1155"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Technical Description"], "url": "https://cwe.mitre.org/data/definitions/126.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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