Vulnerability Monitor

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CVE-2021-45985

In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.

Published

2023-04-10T09:15:07.250

Last Modified

2025-04-25T18:54:09.817

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Primary
CWE-787
Type: Secondary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lua	lua	< 5.4.4	Yes

References

http://lua-users.org/lists/lua-l/2021-12/msg00019.html Exploit, Mailing List, Vendor Advisory ([email protected])
https://github.com/lua/lua/commit/cf613cdc6fa367257fc61c256f63d917350858b5 Patch ([email protected])
https://www.lua.org/bugs.html#5.4.3-11 Vendor Advisory ([email protected])
http://lua-users.org/lists/lua-l/2021-12/msg00019.html Exploit, Mailing List, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/lua/lua/commit/cf613cdc6fa367257fc61c256f63d917350858b5 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://www.lua.org/bugs.html#5.4.3-11 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)