CVE-2020-24342

HIGH

Lua <5.4.0 - Memory Corruption

Title source: llm

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.

Core 3

Core References

Exploit, Mailing List, Vendor Advisory x_refsource_misc

Patch, Third Party Advisory x_refsource_misc

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

CVSS v3 7.8

EPSS 0.0031

EPSS Percentile 53.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-119

Status published

Products (2)

fedoraproject/fedora 33

lua/lua 5.4.0

Published Aug 13, 2020

Tracked Since Feb 18, 2026