CVE-2016-6439

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The vulnerability is due to improper handling of an HTTP packet stream. An attacker could exploit this vulnerability by sending a crafted HTTP packet stream to the detection engine on the targeted device. An exploit could allow the attacker to cause a DoS condition if the Snort process restarts and traffic inspection is bypassed or traffic is dropped."}, {"lang": "es", "value": "Una vulnerabilidad en el reensamblaje del motor de detecci\u00f3n de paquetes HTTP para Cisco Firepower System Software en versiones anteriores a 6.0.1 podr\u00eda permitir a un atacante remoto no autenticado provocar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) debido al reinicio inesperado del proceso Snort. La vulnerabilidad se debe al manejo incorrecto de un flujo de paquetes HTTP. Un atacante puede explotar esta vulnerabilidad mandado un flujo de paquetes HTTP manipulados al motor de detecci\u00f3n en el dispositivo objetivo. Una explotaci\u00f3n puede permitir al atacante provocar una condici\u00f3n DoS si el proceso Snort se reinicia y la inspecci\u00f3n del tr\u00e1fico se elude o el tr\u00e1fico se cae."}], "id": "CVE-2016-6439", "lastModified": "2026-06-17T00:51:02.047", "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": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-10-27T21:59:11.093", "references": [{"source": "psirt@cisco.com", "url": "http://www.securityfocus.com/bid/93787"}, {"source": "psirt@cisco.com", "url": "http://www.securitytracker.com/id/1037061"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161019-fpsnort"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/93787"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1037061"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161019-fpsnort"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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