{"api_version":"1","generated_at":"2026-07-23T04:49:36+00:00","cve":"CVE-2011-4868","urls":{"html":"https://cve.report/CVE-2011-4868","api":"https://cve.report/api/cve/CVE-2011-4868.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2011-4868","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-4868"},"summary":{"title":"CVE-2011-4868","description":"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.","state":"PUBLISHED","assigner":"mitre","published_at":"2012-01-15 03:55:12","updated_at":"2026-04-29 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Consortium","mime":"text/html","httpstatus":"404","archivestatus":"200"},{"url":"http://security.gentoo.org/glsa/glsa-201301-06.xml","name":"http://security.gentoo.org/glsa/glsa-201301-06.xml","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Gentoo Linux Documentation\n--\n  ISC DHCP: Denial of Service","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://kb.isc.org/article/AA-00705","name":"https://kb.isc.org/article/AA-00705","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"CVE-2011-4868: An Error in DDNS Processing of DHCPv6 Leases Can Cause a Crash in ISC dhcpd - Security Advisories","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-4868","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4868","name":"NVD vulnerability 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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.","Type":"Description","Title":"CVE-2011-4868"},{"CveYear":"2011","CveId":"4868","Ordinal":"2","NoteData":"2012-01-14","Type":"Other","Title":"Published"},{"CveYear":"2011","CveId":"4868","Ordinal":"3","NoteData":"2016-11-30","Type":"Other","Title":"Modified"}]}}}