{"id":"CVE-2023-24809","aliases":["ALPINE-CVE-2023-24809","DEBIAN-CVE-2023-24809","EUVD-2023-28807","GHSA-2cqv-5w4v-mgch","UBUNTU-CVE-2023-24809"],"status":"published","title":"NetHack Call command buffer overflow","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00235,"percentile":0.14562,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-120"],"published":"2023-02-17T19:41:24Z","modified":"2026-11-03T06:32:58Z","fixes":[{"ecosystem":"Alpine:v3.18","package":"nethack","fixed_in":["3.6.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"nethack","fixed_in":["3.6.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"nethack","fixed_in":["3.6.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"nethack","fixed_in":["3.6.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"nethack","fixed_in":["3.6.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"nethack","fixed_in":["3.6.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"nethack","fixed_in":["3.6.7-r0"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"nethack","fixed_in":["3.6.7-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"nethack","fixed_in":["3.6.7-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.18","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.2"},{"fixed":"3.6.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.2"},{"fixed":"3.6.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.2"},{"fixed":"3.6.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.2"},{"fixed":"3.6.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.2"},{"fixed":"3.6.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.2"},{"fixed":"3.6.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.2"},{"fixed":"3.6.7-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.6-3","3.6.7-1","3.6.7-2","3.6.7-3","3.6.7-4"]},{"source":"osv","ecosystem":"Debian:13","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.7-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.7-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.3-15","3.4.3-15build1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.0-4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.1-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.6-2build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-1","3.6.7-1build2","3.6.7-1build3"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-1build3","3.6.7-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-2build1","3.6.7-3","3.6.7-4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"nethack","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.7-2","3.6.7-2build1"]}],"products":[{"vendor":"nethack","product":"nethack"}],"references":[{"url":"https://github.com/NetHack/NetHack/security/advisories/GHSA-2cqv-5w4v-mgch","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nethack.org/security/CVE-2023-24809.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","web","report"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-24809","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/24xxx/CVE-2023-24809.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-24809","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-24809","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-24809","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-24809","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-24809","title":"NetHack Call command buffer overflow","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","status":"published","published":"2023-02-17T19:41:24.248Z","modified":"2025-03-10T21:09:40.92Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:27.006218Z"}],"euvd":[{"id":"EUVD-2023-28807","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","status":"published","published":"2023-02-17T19:41:24Z","modified":"2025-03-10T21:09:40Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T20:53:09.197707Z"}],"nvd":[{"id":"CVE-2023-24809","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","status":"published","published":"2023-02-17T20:15:12Z","modified":"2026-06-17T05:39:54.243Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:47.623983Z"}],"osv":[{"id":"ALPINE-CVE-2023-24809","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","status":"published","published":"2023-02-17T20:15:12Z","modified":"2026-11-03T06:32:58.891160743Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T07:16:09.603409Z"},{"id":"CVE-2023-24809","title":"NetHack Call command buffer overflow","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","status":"published","published":"2023-02-17T19:41:24.248Z","modified":"2026-10-28T02:31:07.916525725Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:44:30.709518Z"},{"id":"DEBIAN-CVE-2023-24809","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","status":"published","published":"2023-02-17T20:15:12Z","modified":"2026-10-26T18:01:02.345329436Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:39.369204Z"},{"id":"UBUNTU-CVE-2023-24809","description":"NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the \"C\" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.","status":"published","published":"2023-02-17T20:15:00Z","modified":"2026-10-17T12:56:04.736544669Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:54:20.198616Z"}]}}