CVE-2019-5020

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{"affected": [{"affectedData": [{"product": "Yara Object", "vendor": "n/a", "versions": [{"status": "affected", "version": "Yara 3.8.1"}]}], "source": "talos-cna@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:virustotal:yara:3.8.1:*:*:*:*:*:*:*", "matchCriteriaId": "18A60F7C-F4E6-428C-BE26-09D75F29DEBF", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An exploitable denial of service vulnerability exists in the object lookup functionality of Yara 3.8.1. A specially crafted binary file can cause a negative value to be read to satisfy an assert, resulting in Denial of Service. An attacker can create a malicious binary to trigger this vulnerability."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de denegaci\u00f3n de servicio explotable en la funcionalidad de b\u00fasqueda de objetos de Yara versi\u00f3n 3.8.1. Un archivo binario especialmente dise\u00f1ado puede causar que un valor negativo se lea para satisfacer una afirmaci\u00f3n, resultando en una Denegaci\u00f3n de Servicio. Un atacante puede crear un binario malicioso para activar esta vulnerabilidad."}], "id": "CVE-2019-5020", "lastModified": "2026-06-17T02:36:59.897", "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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "talos-cna@cisco.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-07-31T17:15:11.387", "references": [{"source": "talos-cna@cisco.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0781"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0781"}], "sourceIdentifier": "talos-cna@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-617"}], "source": "talos-cna@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-617"}, {"lang": "en", "value": "CWE-754"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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