Description
Lua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.
References (3)
Core 3
Core References
Exploit, Mailing List, Third Party Advisory x_refsource_misc
http://lua-users.org/lists/lua-l/2020-07/msg00078.html
Patch, Third Party Advisory x_refsource_misc
https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312
Mailing List, Third Party Advisory x_refsource_misc
http://lua-users.org/lists/lua-l/2020-12/msg00157.html
Scores
CVSS v3
9.8
EPSS
0.0051
EPSS Percentile
66.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-125
Status
published
Products (1)
lua/lua
5.4.0
Published
Jul 21, 2020
Tracked Since
Feb 18, 2026