Description
In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.
References (3)
Core 3
Core References
Exploit, Mailing List, Vendor Advisory
http://lua-users.org/lists/lua-l/2021-12/msg00019.html
Vendor Advisory
https://www.lua.org/bugs.html#5.4.3-11
Scores
CVSS v3
7.5
EPSS
0.0031
EPSS Percentile
54.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-787
Status
published
Products (1)
lua/lua
5.4.0 - 5.4.4
Published
Apr 10, 2023
Tracked Since
Feb 18, 2026