{"id":"CVE-2021-45985","aliases":["AZL-26047","AZL-26155","AZL-26158","AZL-35066","BIT-lua-2021-45985","DEBIAN-CVE-2021-45985","EUVD-2021-32691","GHSA-pxvf-cp3x-784h","JLSEC-2026-559","OESA-2023-1241","OESA-2023-1242","UBUNTU-CVE-2021-45985"],"status":"published","title":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over...","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01418,"percentile":0.72983,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2023-04-10T00:00:00Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Azure Linux:2","package":"lua","fixed_in":["5.4.3-5"],"sources":["osv"]},{"ecosystem":"Azure Linux:2","package":"memcached","fixed_in":["1.6.13-3"],"sources":["osv"]},{"ecosystem":"Azure Linux:2","package":"ntopng","fixed_in":["5.2.1-2"],"sources":["osv"]},{"ecosystem":"Azure Linux:3","package":"ntopng","fixed_in":["5.2.1-2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"lua","fixed_in":["5.4.4"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"lua5.4","fixed_in":["5.4.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"lua5.4","fixed_in":["5.4.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"lua5.4","fixed_in":["5.4.4-1"],"sources":["osv"]},{"ecosystem":"Julia","package":"Lua_jll","fixed_in":["5.4.4+0"],"sources":["osv"]},{"ecosystem":"openEuler:22.03-LTS","package":"lua","fixed_in":["5.4.3-11.oe2203"],"sources":["osv"]},{"ecosystem":"openEuler:22.03-LTS-SP1","package":"lua","fixed_in":["5.4.3-11.oe2203sp1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:2","package":"lua","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.3-5"}]}]},{"source":"osv","ecosystem":"Azure Linux:2","package":"memcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.13-3"}]}]},{"source":"osv","ecosystem":"Azure Linux:2","package":"ntopng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.1-2"}]}]},{"source":"osv","ecosystem":"Azure Linux:3","package":"ntopng","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.1-2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"lua","ranges":[{"type":"SEMVER","events":[{"introduced":"5.4.0"},{"fixed":"5.4.4"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"lua5.4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"lua5.4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"lua5.4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-1"}]}]},{"source":"osv","ecosystem":"Julia","package":"Lua_jll","ranges":[{"type":"SEMVER","events":[{"introduced":"5.4.3+0"},{"fixed":"5.4.4+0"}]}]},{"source":"osv","ecosystem":"openEuler:22.03-LTS","package":"lua","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.3-11.oe2203"}]}]},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP1","package":"lua","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.3-11.oe2203sp1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.8-1","1.6.9-1","2.0.0-1","2.0.1-1","2.0.3-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.8-3","0.7.8-3build1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.5-2","2.4.0-1","2.4.1-1","2.4.2-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9-1","0.9.1-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.0-1","2.6.2-3","2.6.3-1","2.6.3-1build1","2.6.3-1build2","3.0.1-0ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"tup","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.8-3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.1-2","0.10.1-3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.0-0ubuntu1","3.8.0-2","3.8.0-3","3.8.0-3build1","3.8.0-3build2","3.8.1-1","3.8.1-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"tup","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.8-3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.1-4","0.12-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.2-1ubuntu1","4.4.2-1ubuntu2","4.4.2-1.1","4.4.2-1.1build1","4.6.1-2","4.6.1-2build3","4.6.1-2build4","4.6.1-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"tup","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.11-3","0.7.11-4"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.12-1","0.12-1build1","0.12-1build2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.1-0ubuntu1","5.0.1-0ubuntu2","5.0.1-1","5.0.1-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"tup","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8-1","0.8-1build1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.12-1build2","0.14-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.1-1","5.4.1-1build1","5.4.1-1build2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"tup","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8-5"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.14.3-1","0.14.3-3","0.14.4-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"darktable","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.1-2","5.2.1-1","5.2.1-1build1","5.2.1-1build2","5.4.0-1","5.4.1-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"tup","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8-1build1","0.8-3","0.8-4","0.8-5"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"vifm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.14-3","0.14.3-1"]}],"products":[{"vendor":"lua","product":"lua"}],"references":[{"url":"https://www.lua.org/bugs.html#5.4.3-11","tags":["x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/lua/lua/commit/cf613cdc6fa367257fc61c256f63d917350858b5","tags":["x_transferred","Patch","fix","web","report"]},{"url":"http://lua-users.org/lists/lua-l/2021-12/msg00019.html","tags":["x_transferred","Exploit","Mailing List","Vendor Advisory","advisory","evidence","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45985","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-pxvf-cp3x-784h"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-45985","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1241","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1242","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-45985","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-45985","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-45985","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T00:00:00Z","modified":"2025-02-12T16:02:20.735Z","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":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:02.930115Z"}],"euvd":[{"id":"EUVD-2021-32691","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T00:00:00Z","modified":"2025-02-12T16:02:20Z","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":"2026-11-03T00:03:58.326443Z"}],"ghsa":[{"id":"GHSA-pxvf-cp3x-784h","title":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over...","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:30:15Z","modified":"2023-04-22T05:08:15Z","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-787"],"updated_at":"2026-11-02T14:54:33.425205Z"}],"nvd":[{"id":"CVE-2021-45985","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:07.25Z","modified":"2026-06-17T04:14:21.94Z","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":"3.1","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":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:07.764332Z"}],"osv":[{"id":"AZL-26047","title":"CVE-2021-45985 affecting package lua for versions less than 5.4.3-5","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:07Z","modified":"2026-04-21T04:23:28.124257Z","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":"2026-11-02T15:28:03.093433Z"},{"id":"AZL-26155","title":"CVE-2021-45985 affecting package memcached for versions less than 1.6.13-3","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:07Z","modified":"2026-04-21T04:23:29.021307Z","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":"2026-11-02T15:28:03.093433Z"},{"id":"AZL-26158","title":"CVE-2021-45985 affecting package ntopng for versions less than 5.2.1-2","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:07Z","modified":"2026-04-21T04:23:30.871691Z","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":"2026-11-02T15:28:03.093433Z"},{"id":"AZL-35066","title":"CVE-2021-45985 affecting package ntopng for versions less than 5.2.1-2","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:07Z","modified":"2026-11-05T05:40:51Z","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":"2026-11-05T16:41:19.554273Z"},{"id":"CVE-2021-45985","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:07.25Z","modified":"2026-10-20T14:06:56.93704864Z","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":"2026-11-02T15:44:22.18434Z"},{"id":"DEBIAN-CVE-2021-45985","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:07.25Z","modified":"2026-10-23T18:04:17.840829731Z","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":"2026-11-02T15:45:35.799676Z"},{"id":"JLSEC-2026-559","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2026-05-26T19:45:06.761Z","modified":"2026-07-18T00:02:10.827814775Z","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":"2026-11-02T15:47:18.573531Z"},{"id":"OESA-2023-1241","title":"lua security update","description":"Lua is a powerful, efficient, lightweight, embeddable scripting language. It supports procedural programming, object-oriented programming, functional programming, data-driven programming, and data description.\r\n\r\nSecurity Fix(es):\r\n\r\nIn Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.(CVE-2021-45985)","status":"published","published":"2023-04-21T11:05:43Z","modified":"2026-08-18T01:17:40.247348805Z","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":"2026-11-02T15:52:39.934788Z"},{"id":"OESA-2023-1242","title":"lua security update","description":"Lua is a powerful, efficient, lightweight, embeddable scripting language. It supports procedural programming, object-oriented programming, functional programming, data-driven programming, and data description.\r\n\r\nSecurity Fix(es):\r\n\r\nIn Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.(CVE-2021-45985)","status":"published","published":"2023-04-21T11:05:43Z","modified":"2026-08-18T01:17:41.240554533Z","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":"2026-11-02T15:52:39.934788Z"},{"id":"UBUNTU-CVE-2021-45985","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2023-04-10T09:15:00Z","modified":"2026-10-17T12:57:15.002299385Z","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":"3.1","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":"2026-11-02T15:54:30.277322Z"},{"id":"BIT-lua-2021-45985","description":"In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.","status":"published","published":"2024-03-06T10:55:49.583Z","modified":"2026-09-08T08:48:09.071112933Z","updated_at":"2026-11-02T15:28:32.645004Z"}]}}
