CVE-2012-4643

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{"criteria": "cpe:2.3:h:cisco:catalyst_6513:-:*:*:*:*:*:*:*", "matchCriteriaId": "E6463491-F63E-44CB-A1D4-C029BE7D3D3D", "vulnerable": true}, {"criteria": "cpe:2.3:h:cisco:catalyst_6513-e:-:*:*:*:*:*:*:*", "matchCriteriaId": "D8668D34-096B-4FC3-B9B1-0ECFD6265778", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 7.0 before 7.2(5.8), 7.1 before 7.2(5.8), 7.2 before 7.2(5.8), 8.0 before 8.0(5.28), 8.1 before 8.1(2.56), 8.2 before 8.2(5.27), 8.3 before 8.3(2.31), 8.4 before 8.4(3.10), 8.5 before 8.5(1.9), and 8.6 before 8.6(1.5) does not properly allocate memory for DHCP packets, which allows remote attackers to cause a denial of service (device reload) via a series of crafted IPv4 packets, aka Bug ID CSCtw84068."}, {"lang": "es", "value": "El servidor DHCP en dispositivos Cisco de las series Adaptive Security Appliances (ASA) 5500, y ASA Services Module (ASASM) en dispositivos Cisco de la serie Catalyst 6500, con software v7.0 anterior a v7.2(5.8), v7.1 anterior a v7.2(5.8), v7.2 anterior a v7.2(5.8), v8.0 anterior a v8.0(5.28), v8.1 anterior a v8.1(2.56), v8.2 anterior a v8.2(5.27), v8.3 anterior a v8.3(2.31), v8.4 anterior a v8.4(3.10), v8.5 anterior a v8.5(1.9), y v8.6 anterior a v8.6(1.5) no posiciona en memoria de forma adecuada los paquetes DHCP, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (recarga de dispositivo) a trav\u00e9s de una serie de paquetes IPv4 manipulados, tambi\u00e9n conocido como Bus ID CSCtw84068."}], "id": "CVE-2012-4643", "lastModified": "2026-06-16T23:45:31.370", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-10-29T20:55:01.103", "references": [{"source": "psirt@cisco.com", "url": "http://osvdb.org/86145"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa"}, {"source": "psirt@cisco.com", "url": "http://www.securityfocus.com/bid/55861"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://osvdb.org/86145"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/55861"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}