BIT-lua-2020-15945

BIT-lua-2020-15945 PUBLISHED CVSS 5.5 MEDIUM

Lua 5.4.0 (fixed in 5.4.1) has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.

Risk Scores

CVSS 3.1

5.5

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

Affected Products

Vendor	Product	Versions
Bitnami	lua	5.3.1, 5.3.1, 5.3.1

Timeline

Mar 6, 2024 CVE Published
Apr 3, 2025 CVE Updated

References

http://lua-users.org/lists/lua-l/2020-07/msg00123.html url
https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3 url
https://www.lua.org/bugs.html#5.4.0-8 url
https://nvd.nist.gov/vuln/detail/CVE-2020-15945 url

Open in Interactive Console →