{"id":"CVE-2020-24370","details":"ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).","aliases":["BIT-lua-2020-24370"],"modified":"2026-07-08T19:02:33.173912Z","published":"2020-08-17T17:15:13.877Z","related":["ALSA-2021:4510","SUSE-SU-2021:2196-1","openSUSE-SU-2021:0962-1","openSUSE-SU-2021:2196-1","openSUSE-SU-2024:11028-1","openSUSE-SU-2024:11029-1","openSUSE-SU-2025:15401-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.0"},{"last_affected":"9.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"},{"cpes":["cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"31"},{"last_affected":"31"},{"introduced":"32"},{"last_affected":"32"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"},{"vendor_product":"lua:lua","cpes":["cpe:2.3:a:lua:lua:5.2.0:alpha:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.2.0:beta:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.0:alpha:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.0:beta:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.4.0:alpha:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.4.0:beta:*:*:*:*:*:*"],"extracted_events":[{"introduced":"5.2.0-alpha"},{"last_affected":"5.2.0-alpha"},{"introduced":"5.2.0-beta"},{"last_affected":"5.2.0-beta"},{"introduced":"5.3.0-alpha"},{"last_affected":"5.3.0-alpha"},{"introduced":"5.3.0-beta"},{"last_affected":"5.3.0-beta"},{"introduced":"5.4.0-alpha"},{"last_affected":"5.4.0-alpha"},{"introduced":"5.4.0-beta"},{"last_affected":"5.4.0-beta"}],"source":"CPE_STRING"}]},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/09/msg00019.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6KONNG6UEI3FMEOY67NDZC32NBGBI44/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXYMCIUNGK26VHAYHGP5LPW56G2KWOHQ/"},{"type":"FIX","url":"https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b"},{"type":"EVIDENCE","url":"http://lua-users.org/lists/lua-l/2020-07/msg00324.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/lua/lua","events":[{"introduced":"e2fc2ce8dfe107d1e2742b459c2aaf137227bbc1"},{"last_affected":"c33b1728aeb7dfeec4013562660e07d32697aa6b"},{"fixed":"a585eae6e7ada1ca9271607a4f48dfb17868ab7b"}],"database_specific":{"cpe":["cpe:2.3:a:lua:lua:5.2.0:-:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.2.1:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.2.2:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.2.3:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.0:-:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.1:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.2:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.3:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.4:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.3.5:*:*:*:*:*:*:*","cpe:2.3:a:lua:lua:5.4.0:-:*:*:*:*:*:*"],"extracted_events":[{"introduced":"5.2.0-NA"},{"last_affected":"5.2.0-NA"},{"introduced":"5.2.1"},{"last_affected":"5.2.1"},{"introduced":"5.2.2"},{"last_affected":"5.2.2"},{"introduced":"5.2.3"},{"last_affected":"5.2.3"},{"introduced":"5.3.0-NA"},{"last_affected":"5.3.0-NA"},{"introduced":"5.3.1"},{"last_affected":"5.3.1"},{"introduced":"5.3.2"},{"last_affected":"5.3.2"},{"introduced":"5.3.3"},{"last_affected":"5.3.3"},{"introduced":"5.3.4"},{"last_affected":"5.3.4"},{"introduced":"5.3.5"},{"last_affected":"5.3.5"},{"introduced":"5.4.0-NA"},{"last_affected":"5.4.0-NA"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["5.2.0-NA","5.2.1","5.2.2","5.2.3","5.3.0-NA","5.3.1","5.3.2","5.3.3","5.3.4","5.3.5","5.4.0-NA","v5.4.0","v5.4-beta","v5.4-alpha","v5.3.4","v5.4-w2","v5.3.3","v5.3.2","v5.3.1","v5.3.0","v5.3-beta","v5.3-alpha","v5.2.2","v5.2.1","v5.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24370.json","vanir_signatures_modified":"2026-07-08T19:02:33Z","vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b","target":{"function":"luaG_findlocal","file":"ldebug.c"},"deprecated":false,"digest":{"function_hash":"160457310741932794514906761248697216809","length":606},"id":"CVE-2020-24370-3408fa99"},{"signature_version":"v1","source":"https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b","target":{"file":"ldebug.c","function":"findvararg"},"deprecated":false,"digest":{"function_hash":"176948320927037737175998274991413929359","length":298},"id":"CVE-2020-24370-a6e6ec70","signature_type":"Function"},{"deprecated":false,"digest":{"line_hashes":["308106254715576835832771124558186333737","28150857163617153757180128882987340278","67856167705625202229537381893379792047","118168772934001778875555195425693302437","316101619877408557194703765822106706457","103962487352111355186447672861982043630","180146486087139942444320654781720975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