{"id":"CVE-2018-6536","aliases":["DEBIAN-CVE-2018-6536","EUVD-2018-18288","GHSA-653v-x44f-wmwh","UBUNTU-CVE-2018-6536"],"status":"published","title":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after...","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00257,"percentile":0.17449,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-732"],"published":"2018-02-02T09:00:00Z","modified":"2026-10-24T10:48:42Z","fixes":[{"ecosystem":"Debian:12","package":"icinga2","fixed_in":["2.8.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"icinga2","fixed_in":["2.8.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"icinga2","fixed_in":["2.8.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.4-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.8-1build1","2.3.11-1","2.4.0-1","2.4.1-1","2.4.1-2","2.4.1-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.0-1","2.8.1-0ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.5-1build1","2.11.2-1","2.11.2-1ubuntu1","2.11.2-1ubuntu2","2.11.2-1ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12.3-1","2.13.1-1","2.13.2-1","2.13.2-1build1","2.13.2-1build2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.13.8-1","2.14.1-1","2.14.2-1","2.14.2-1build1","2.14.2-1build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.5-1","2.14.6-1","2.15.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.15.1-1","2.16.1-1","2.16.3-1","2.16.4-1build1","2.16.5-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"icinga2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.15.0-1","2.15.1-1"]}],"products":[{"vendor":"icinga","product":"icinga"}],"references":[{"url":"https://github.com/Icinga/icinga2/issues/5991","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-6536"},{"url":"https://github.com/advisories/GHSA-653v-x44f-wmwh"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-6536","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-6536","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-6536","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-6536","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","status":"published","published":"2018-02-02T09:00:00Z","modified":"2024-08-05T06:10:10.303Z","updated_at":"2026-11-02T14:35:05.619113Z"}],"euvd":[{"id":"EUVD-2018-18288","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","status":"published","published":"2018-02-02T09:00:00Z","modified":"2024-08-05T06:10:10Z","updated_at":"2026-11-03T02:40:07.640255Z"}],"ghsa":[{"id":"GHSA-653v-x44f-wmwh","title":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after...","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","status":"published","published":"2022-05-13T01:53:07Z","modified":"2023-02-02T05:02:23Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:51:25.546182Z"}],"nvd":[{"id":"CVE-2018-6536","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","status":"published","published":"2018-02-02T09:29:00.367Z","modified":"2026-06-17T02:01:59.21Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:04:22.897995Z"}],"osv":[{"id":"CVE-2018-6536","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","status":"published","published":"2018-02-02T09:29:00.367Z","modified":"2026-10-24T10:48:42.823346181Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.74357Z"},{"id":"DEBIAN-CVE-2018-6536","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","status":"published","published":"2018-02-02T09:29:00.367Z","modified":"2026-10-23T18:03:08.23637713Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"UBUNTU-CVE-2018-6536","description":"An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.","status":"published","published":"2018-02-02T09:29:00Z","modified":"2026-10-17T12:55:28.074623791Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:18.772093Z"}]}}