{"id":"CVE-2011-4868","aliases":["DEBIAN-CVE-2011-4868","EUVD-2011-4785","GHSA-q3c7-f665-h5rw","openSUSE-SU-2024:10358-1"],"status":"published","title":"The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and...","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.","severity":{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.03414,"percentile":0.88961,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-399"],"published":"2012-01-15T02:00:00Z","modified":"2026-10-23T17:47:50Z","fixes":[{"ecosystem":"Debian:12","package":"isc-dhcp","fixed_in":["4.2.2.dfsg.1-5"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"isc-dhcp","fixed_in":["4.2.2.dfsg.1-5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"isc-dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.2.dfsg.1-5"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"isc-dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.2.dfsg.1-5"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3.P1-3.1"}]}],"bundled":16}],"products":[{"vendor":"isc","product":"dhcp"}],"references":[{"url":"https://kb.isc.org/article/AA-00705","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://www.isc.org/software/dhcp/advisories/cve-2011-4868","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://deepthought.isc.org/article/AA-00595","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://security.gentoo.org/glsa/glsa-201301-06.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4868"},{"url":"https://github.com/advisories/GHSA-q3c7-f665-h5rw"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4868","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2009-1892","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-2156","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-3611","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-3616","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0413","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0997","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2748","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2749","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4539","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4868","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3570","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3571","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3954","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3955","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-2266","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8605","tags":["web"]}],"sources":{"cve":[{"id":"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.","status":"published","published":"2012-01-15T02:00:00Z","modified":"2024-08-07T00:16:35.122Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2011-4785","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.","status":"published","published":"2012-01-15T02:00:00Z","modified":"2024-08-07T00:16:35Z","updated_at":"2026-11-03T01:39:48.106738Z"}],"ghsa":[{"id":"GHSA-q3c7-f665-h5rw","title":"The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and...","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.","status":"published","published":"2022-05-17T03:35:04Z","modified":"2023-01-27T05:07:51Z","updated_at":"2026-11-02T14:43:12.437336Z"}],"nvd":[{"id":"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.","status":"published","published":"2012-01-15T03:55:12.953Z","modified":"2026-06-16T23:35:32.657Z","cvss":[{"version":"2.0","score":6.1,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:02:11.800512Z"}],"osv":[{"id":"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.","status":"published","published":"2012-01-15T03:55:12Z","modified":"2026-04-10T03:42:06.805758Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-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.","status":"published","published":"2012-01-15T03:55:12.953Z","modified":"2026-10-23T17:47:50.758073649Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"openSUSE-SU-2024:10358-1","title":"dhcp-4.3.3.P1-3.1 on GA media","description":"These are all security issues fixed in the dhcp-4.3.3.P1-3.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:08:31.811732Z","updated_at":"2026-11-02T16:58:34.487567Z"}]}}