Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24342
Reference (s):
- FEDORA:FEDORA-2020-38e35de8aa
- URL: https://lists.fedoraproject.org/archives/list/[email protected]/message/QA5Q5MDQMTGXRQO3PAQ4EZFTYWJXZM5N/
- http://lua-users.org/lists/lua-l/2020-07/msg00052.html
- https://github.com/lua/lua/commit/34affe7a63fc5d842580a9f23616d057e17dfe27