Show plain JSON{"id": "CVE-2011-4868", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.1, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2012-01-15T03:55:12.953", "references": [{"url": "http://security.gentoo.org/glsa/glsa-201301-06.xml", "source": "cve@mitre.org"}, {"url": "https://deepthought.isc.org/article/AA-00595", "source": "cve@mitre.org"}, {"url": "https://kb.isc.org/article/AA-00705", "source": "cve@mitre.org"}, {"url": "https://www.isc.org/software/dhcp/advisories/cve-2011-4868", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://security.gentoo.org/glsa/glsa-201301-06.xml", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://deepthought.isc.org/article/AA-00595", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://kb.isc.org/article/AA-00705", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.isc.org/software/dhcp/advisories/cve-2011-4868", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-399"}]}], "descriptions": [{"lang": "en", "value": "The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update."}, {"lang": "es", "value": "La funcionalidad de registro en el dhcpd de ISC DHCP anterior a v4.2.3-P2, cuando se utiliza DNS din\u00e1mico (DDNS) y direcciones IPv6, no maneja correctamente la estructura de arrendamiento (lease structure) DHCPv6, permitiendo a atacantes remotos provocar una denegaci\u00f3n de servicio (puntero a NULL y el ca\u00edda del servicio) mediante paquetes especialmente elaborados en relaci\u00f3n con una actualizaci\u00f3n lease-status."}], "lastModified": "2025-04-11T00:51:21.963", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:isc:dhcp:*:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8387F752-D920-4891-9DCB-4CCDE8461DE5", "versionEndIncluding": "4.2.3"}, {"criteria": "cpe:2.3:a:isc:dhcp:3.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "648BBC1F-1792-443F-B625-67A05004EB7E"}, {"criteria": 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