CVE-2021-44964

MEDIUM 6.3CVE-2021-44964 · Published 14/03/2022 · updated 17/06/2026

Package	Affected versions	Patched versions
lua lua	`≥ 5.4.0, ≤ 5.4.3`	No fix yet

Description

Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers to perform Sandbox Escape via a crafted script file.

References

lua-users.org/lists/lua-l/2021-11/msg00186.html · Exploit
lua-users.org/lists/lua-l/2021-12/msg00007.html · Exploit
lua-users.org/lists/lua-l/2021-12/msg00015.html · Mailing List
lua-users.org/lists/lua-l/2021-12/msg00030.html · Mailing List
Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerability · Exploit

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