| Name | CVE-2020-24371 |
| Description | lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 971010 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| lua5.3 (PTS) | buster | 5.3.3-1.1 | fixed |
| buster (security) | 5.3.3-1.1+deb10u1 | fixed |
| bullseye | 5.3.3-1.1+deb11u1 | fixed |
| sid, trixie, bookworm | 5.3.6-2 | fixed |
| lua5.4 (PTS) | bullseye | 5.4.2-2 | fixed |
| bookworm | 5.4.4-3 | fixed |
| sid, trixie | 5.4.6-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| lua5.3 | source | (unstable) | (not affected) | | | |
| lua5.4 | source | (unstable) | 5.4.1-1 | | | 971010 |
Notes
- lua5.3 <not-affected> (Vulnerable code introduced in 5.4.0)
https://github.com/lua/lua/commit/a6da1472c0c5e05ff249325f979531ad51533110
https://www.lua.org/bugs.html#5.4.0-10