{"id":"CVE-2018-5744","aliases":["ALPINE-CVE-2018-5744","BELL-CVE-2018-5744","DEBIAN-CVE-2018-5744","EUVD-2018-17513","GHSA-xcc7-r4h9-f7ph","UBUNTU-CVE-2018-5744","USN-3893-1"],"status":"published","title":"A specially crafted packet can cause named to leak memory","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.03446,"percentile":0.89079,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-772"],"published":"2019-02-21T00:00:00Z","modified":"2026-10-24T10:30:59Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.6","package":"bind","fixed_in":["9.11.5_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.7","package":"bind","fixed_in":["9.11.5_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"bind","fixed_in":["9.12.3_p4-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"bind9","fixed_in":["1:9.11.5.P4+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"bind9","fixed_in":["1:9.11.5.P4+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"bind9","fixed_in":["1:9.11.5.P4+dfsg-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"bind9","fixed_in":["1:9.11.3+dfsg-1ubuntu1.5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.10","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.11","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.6","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.11.5_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.7","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.11.5_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.8","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.9","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.10.7"},{"fixed":"9.12.3_p4-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"bind9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.11.5.P4+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"bind9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.11.5.P4+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"bind9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.11.5.P4+dfsg-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"bind9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.11.3+dfsg-1ubuntu1.5"}]}],"versions":["1:9.10.3.dfsg.P4-12.6ubuntu1","1:9.11.2.P1-1ubuntu2","1:9.11.2.P1-1ubuntu3","1:9.11.2.P1-1ubuntu4","1:9.11.2.P1-1ubuntu5","1:9.11.3+dfsg-1ubuntu1","1:9.11.3+dfsg-1ubuntu1.1","1:9.11.3+dfsg-1ubuntu1.2","1:9.11.3+dfsg-1ubuntu1.3"]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"bind9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.9.5.dfsg-3ubuntu0.19"}]}],"versions":["1:9.9.3.dfsg.P2-4ubuntu1","1:9.9.3.dfsg.P2-4ubuntu2","1:9.9.3.dfsg.P2-4ubuntu3","1:9.9.5.dfsg-2","1:9.9.5.dfsg-3","1:9.9.5.dfsg-3ubuntu0.1","1:9.9.5.dfsg-3ubuntu0.2","1:9.9.5.dfsg-3ubuntu0.3","1:9.9.5.dfsg-3ubuntu0.4","1:9.9.5.dfsg-3ubuntu0.5","1:9.9.5.dfsg-3ubuntu0.6","1:9.9.5.dfsg-3ubuntu0.7","1:9.9.5.dfsg-3ubuntu0.8","1:9.9.5.dfsg-3ubuntu0.9","1:9.9.5.dfsg-3ubuntu0.10","1:9.9.5.dfsg-3ubuntu0.11","1:9.9.5.dfsg-3ubuntu0.12","1:9.9.5.dfsg-3ubuntu0.13","1:9.9.5.dfsg-3ubuntu0.14","1:9.9.5.dfsg-3ubuntu0.15","1:9.9.5.dfsg-3ubuntu0.16","1:9.9.5.dfsg-3ubuntu0.17","1:9.9.5.dfsg-3ubuntu0.18"],"bundled":3},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"bind9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.10.3.dfsg.P4-8ubuntu1.12"}]}],"versions":["1:9.9.5.dfsg-11ubuntu1","1:9.9.5.dfsg-12","1:9.9.5.dfsg-12.1","1:9.9.5.dfsg-12.1ubuntu1","1:9.10.3.dfsg.P2-4","1:9.10.3.dfsg.P2-5","1:9.10.3.dfsg.P4-3","1:9.10.3.dfsg.P4-4","1:9.10.3.dfsg.P4-5","1:9.10.3.dfsg.P4-8","1:9.10.3.dfsg.P4-8ubuntu1","1:9.10.3.dfsg.P4-8ubuntu1.1","1:9.10.3.dfsg.P4-8ubuntu1.2","1:9.10.3.dfsg.P4-8ubuntu1.3","1:9.10.3.dfsg.P4-8ubuntu1.4","1:9.10.3.dfsg.P4-8ubuntu1.5","1:9.10.3.dfsg.P4-8ubuntu1.6","1:9.10.3.dfsg.P4-8ubuntu1.7","1:9.10.3.dfsg.P4-8ubuntu1.8","1:9.10.3.dfsg.P4-8ubuntu1.9","1:9.10.3.dfsg.P4-8ubuntu1.10","1:9.10.3.dfsg.P4-8ubuntu1.11"],"bundled":3},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"bind9","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.11.3+dfsg-1ubuntu1.5"}]}],"versions":["1:9.10.3.dfsg.P4-12.6ubuntu1","1:9.11.2.P1-1ubuntu2","1:9.11.2.P1-1ubuntu3","1:9.11.2.P1-1ubuntu4","1:9.11.2.P1-1ubuntu5","1:9.11.3+dfsg-1ubuntu1","1:9.11.3+dfsg-1ubuntu1.1","1:9.11.3+dfsg-1ubuntu1.2","1:9.11.3+dfsg-1ubuntu1.3"],"bundled":3}],"products":[{"vendor":"isc","product":"bind"},{"vendor":"isc","product":"bind 9"}],"references":[{"url":"https://kb.isc.org/docs/cve-2018-5744","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-5744"},{"url":"https://github.com/advisories/GHSA-xcc7-r4h9-f7ph"},{"url":"https://security.alpinelinux.org/vuln/CVE-2018-5744","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2018-5744","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-5744","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-5744","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3893-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-5744","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-5745","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-6465","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-5744","title":"A specially crafted packet can cause named to leak memory","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2019-10-09T14:17:14.332Z","modified":"2024-09-16T22:21:17.098Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:01.28843Z"}],"euvd":[{"id":"EUVD-2018-17513","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2019-10-09T14:17:14Z","modified":"2024-09-16T22:21:17Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:55:03.452021Z"}],"ghsa":[{"id":"GHSA-xcc7-r4h9-f7ph","title":"A failure to free memory can occur when processing messages having a specific combination of EDNS...","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2022-05-24T16:58:11Z","modified":"2024-04-04T02:11:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:56:07.143453Z"}],"nvd":[{"id":"CVE-2018-5744","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2019-10-09T16:15:13.907Z","modified":"2026-06-17T02:00:42.413Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-772"],"updated_at":"2026-11-02T14:04:59.278647Z"}],"osv":[{"id":"ALPINE-CVE-2018-5744","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2019-10-09T16:15:13.907Z","modified":"2026-10-23T17:17:55.27955768Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:47.663013Z"},{"id":"BELL-CVE-2018-5744","title":"CVE-2018-5744 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:14:22.39665Z","modified":"2026-01-26T09:49:09.303869Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:14.701973Z"},{"id":"CVE-2018-5744","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2019-10-09T16:15:13.907Z","modified":"2026-10-24T10:30:59.935743441Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:09.442568Z"},{"id":"DEBIAN-CVE-2018-5744","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2019-10-09T16:15:13.907Z","modified":"2026-10-23T18:03:58.428362664Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"UBUNTU-CVE-2018-5744","description":"A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -\u003e 9.10.8-P1, 9.11.3 -\u003e 9.11.5-P1, 9.12.0 -\u003e 9.12.3-P1, and versions 9.10.7-S1 -\u003e 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -\u003e 9.13.6 of the 9.13 development branch are also affected.","status":"published","published":"2019-02-21T00:00:00Z","modified":"2026-04-22T11:58:42.948313Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:18.33562Z"},{"id":"USN-3893-1","title":"bind9 vulnerabilities","description":"Toshifumi Sakaguchi discovered that Bind incorrectly handled memory. A\nremote attacker could possibly use this issue to cause Bind to consume\nresources, leading to a denial of service. This issue only affected Ubuntu\n18.04 LTS and Ubuntu 18.10. (CVE-2018-5744)\n\nIt was discovered that Bind incorrectly handled certain trust anchors when\nused with the \"managed-keys\" feature. A remote attacker could possibly use\nthis issue to cause Bind to crash, resulting in a denial of service.\n(CVE-2018-5745)\n\nIt was discovered that Bind incorrectly handled certain controls for zone\ntransfers, contrary to expectations. (CVE-2019-6465)\n","status":"published","published":"2019-02-22T08:08:13Z","modified":"2026-04-22T09:55:22.635726Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}