{"id":"CVE-2009-0692","aliases":["DEBIAN-CVE-2009-0692","DSA-1833-1","DSA-1833-2","EUVD-2009-0692","GHSA-cjw8-pp44-m8v2","RHSA-2009:1136","RHSA-2009:1154"],"status":"published","title":"Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP...","description":"Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.2578,"percentile":0.97983,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-119"],"published":"2009-07-14T00:00:00Z","modified":"2026-06-28T10:02:27Z","exploits":[{"source":"exploitdb","id":"EDB-9265","title":"ISC DHCP dhclient \u003c 3.1.2p1 - Remote Buffer Overflow (PoC)","type":"dos","platform":"linux","date":"2009-07-27","verified":true,"url":"https://www.exploit-db.com/exploits/9265"}],"fixes":[{"ecosystem":"Debian:4.0","package":"dhcp3","fixed_in":["3.0.4-13+etch2"],"sources":["osv"]},{"ecosystem":"Debian:5.0","package":"dhcp3","fixed_in":["3.1.1-6+lenny2"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhclient","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhcp","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhcp-debuginfo","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhcp-devel","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhclient","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhcp","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhcp-debuginfo","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhcp-devel","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhclient","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhcp","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhcp-debuginfo","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhcp-devel","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhclient","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhcp","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhcp-debuginfo","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhcp-devel","fixed_in":["7:3.0.1-62.el4_7.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhclient","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhcp","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhcp-debuginfo","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhcp-devel","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhclient","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhcp","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhcp-debuginfo","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhcp-devel","fixed_in":["7:3.0.1-65.el4_8.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:4.0","package":"dhcp3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.4-13+etch2"}]}],"versions":["3.0.4-13"]},{"source":"osv","ecosystem":"Debian:5.0","package":"dhcp3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.1-6+lenny2"}]}],"versions":["3.1.1-6"]},{"source":"osv","ecosystem":"Debian:5.0","package":"dhcp3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.1-6+lenny3"}]}],"versions":["3.1.1-6","3.1.1-6+lenny2"],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::as","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::as","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_eus:4.7::es","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-62.el4_7.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::es","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::ws","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-65.el4_8.1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::as","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::as","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::as","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::as","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::desktop","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::desktop","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::desktop","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::desktop","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::es","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::es","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::es","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::es","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::ws","package":"dhclient","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::ws","package":"dhcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::ws","package":"dhcp-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:3::ws","package":"dhcp-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.0.1-10.2_EL3"}]}],"bundled":2}],"products":[{"vendor":"isc","product":"dhcp"}],"references":[{"url":"http://www.vupen.com/english/advisories/2009/1891","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://www.isc.org/node/468","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://secunia.com/advisories/35830","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=507717","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://secunia.com/advisories/35832","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02286083","tags":["vendor-advisory","x_refsource_HP","x_transferred"]},{"url":"http://secunia.com/advisories/35850","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://secunia.com/advisories/35785","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.kb.cert.org/vuls/id/410676","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"http://secunia.com/advisories/35880","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00003.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00340.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://secunia.com/advisories/40551","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.osvdb.org/55819","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.securityfocus.com/bid/35668","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.debian.org/security/2009/dsa-1833","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"http://security.gentoo.org/glsa/glsa-200907-12.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:151","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"]},{"url":"http://www.redhat.com/support/errata/RHSA-2009-1136.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://secunia.com/advisories/35831","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://secunia.com/advisories/35829","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2010/1796","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://secunia.com/advisories/35841","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5941","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10758","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.ubuntu.com/usn/usn-803-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-010.txt.asc","tags":["vendor-advisory","x_refsource_NETBSD","x_transferred"]},{"url":"https://www.isc.org/downloadables/12","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.redhat.com/support/errata/RHSA-2009-1154.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://secunia.com/advisories/37342","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://secunia.com/advisories/35851","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://secunia.com/advisories/35849","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://slackware.com/security/viewer.php?l=slackware-security\u0026y=2009\u0026m=slackware-security.561471","tags":["vendor-advisory","x_refsource_SLACKWARE","x_transferred"]},{"url":"http://www.securitytracker.com/id?1022548","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://secunia.com/advisories/36457","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01177.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0692","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cjw8-pp44-m8v2"},{"url":"https://access.redhat.com/errata/RHSA-2009:1136","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#critical","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2009/rhsa-2009_1136.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2009-0692","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2009-0692","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2009:1154","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=510024","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2009/rhsa-2009_1154.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2009-1893","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2009-1893","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-1893","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2009-0692","description":"Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.","status":"published","published":"2009-07-14T20:16:00Z","modified":"2024-08-07T04:48:51.347Z","updated_at":"2026-11-02T14:33:26.302774Z"}],"euvd":[{"id":"EUVD-2009-0692","description":"Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.","status":"published","published":"2009-07-14T20:16:00Z","modified":"2024-08-07T04:48:51Z","updated_at":"2026-11-03T01:39:24.749817Z"}],"ghsa":[{"id":"GHSA-cjw8-pp44-m8v2","title":"Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP...","description":"Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.","status":"published","published":"2022-05-02T03:17:30Z","modified":"2023-01-31T05:07:59Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:49:18.929475Z"}],"nvd":[{"id":"CVE-2009-0692","description":"Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.","status":"published","published":"2009-07-14T20:30:00.217Z","modified":"2026-06-16T23:05:34.917Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:36.200173Z"}],"osv":[{"id":"DSA-1833-1","title":"dhcp3 - arbitrary code execution","status":"published","published":"2009-07-14T00:00:00Z","modified":"2026-03-09T01:21:43.244267Z","updated_at":"2026-11-02T15:46:14.734124Z"},{"id":"DSA-1833-2","title":"dhcp3 - arbitrary code execution","status":"published","published":"2009-08-25T00:00:00Z","modified":"2026-03-09T01:21:08.345327Z","updated_at":"2026-11-02T15:46:14.734124Z"},{"id":"RHSA-2009:1136","title":"Red Hat Security Advisory: dhcp security update","status":"published","published":"2024-09-15T18:01:45Z","modified":"2026-06-28T10:02:27Z","updated_at":"2026-11-02T15:53:00.468834Z"},{"id":"RHSA-2009:1154","title":"Red Hat Security Advisory: dhcp security update","status":"published","published":"2024-09-15T18:02:45Z","modified":"2026-06-28T10:02:27Z","updated_at":"2026-11-02T15:53:00.468834Z"}]}}
