{"id":"ALPINE-CVE-2022-28805","details":"singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.","modified":"2026-03-09T01:25:19.968334Z","published":"2022-04-08T06:15:07.243Z","upstream":["CVE-2022-28805"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2022-28805"}],"affected":[{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.3-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.3-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}},{"package":{"name":"lua5.4","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/lua5.4?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-r4"}]}],"versions":["5.4.3-r1","5.4.4-r1","5.4.4-r2","5.4.4-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2022-28805.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"}]}