CVE catalog

CVE-2020-24371

lua5.4: CVE-2020-24371

Severity: High · CVSS 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published: Jul 15, 2020, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.75% · Oct 25, 2026

lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	lua5.3	sid	`5.3.6-4`	not affected
Debian	lua5.3	forky	`5.3.6-4`	not affected
Debian	lua5.3	trixie	`5.3.6-2`	not affected
Debian	lua5.3	bookworm	`5.3.6-2`	not affected
Debian	lua5.4	sid	`5.4.9-1`	fixed
Debian	lua5.4	forky	`5.4.9-1`	fixed
Debian	lua5.4	trixie	`5.4.7-1`	fixed
Debian	lua5.4	bookworm	`5.4.4-3+deb12u1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	lua5.3	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	lua5.3	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	lua5.3	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	lua5.3	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Debian	lua5.4	source	sid	`5.4.1-1`	not yet assigned	Not reported	[971010]
Debian	lua5.4	source	forky	`5.4.1-1`	not yet assigned	Not reported	[971010]
Debian	lua5.4	source	trixie	`5.4.1-1`	not yet assigned	Not reported	[971010]
Debian	lua5.4	source	bookworm	`5.4.1-1`	not yet assigned	Not reported	[971010]

[Debian bug #971010]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[liblua5.3-0]Not affected
Source package: [lua5.3]
Details (2)
- 5.3.6-2 · amd64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
- 5.3.6-2 · arm64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
[liblua5.3-0-dbg]Not affected
Source package: [lua5.3]
Details (2)
- 5.3.6-2 · amd64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
- 5.3.6-2 · arm64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
[liblua5.3-dev]Not affected
Source package: [lua5.3]
Details (2)
- 5.3.6-2 · amd64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
- 5.3.6-2 · arm64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
[liblua5.4-0]Fixed
Source package: [lua5.4]
Details (2)
- 5.4.4-3+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
- 5.4.4-3+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
[liblua5.4-0-dbg]Fixed
Source package: [lua5.4]
Details (2)
- 5.4.4-3+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
- 5.4.4-3+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
[liblua5.4-dev]Fixed
Source package: [lua5.4]
Details (2)
- 5.4.4-3+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
- 5.4.4-3+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
[lua5.3]Not affected
Details (2)
- 5.3.6-2 · amd64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
- 5.3.6-2 · arm64 · bookworm
  Not affected
  dsa · lua5.3 · debian · bookworm
[lua5.4]Fixed
Details (2)
- 5.4.4-3+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12
- 5.4.4-3+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · bookworm; dsa · lua5.4 · debian · 12

[Debian 13 (Trixie)]

[liblua5.4-0]Fixed
Source package: [lua5.4]
Details (2)
- 5.4.7-1+b2 · amd64 · trixie
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · 13
- 5.4.7-1+b2 · arm64 · trixie
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · 13
[liblua5.4-dev]Fixed
Source package: [lua5.4]
Details (2)
- 5.4.7-1+b2 · amd64 · trixie
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · 13
- 5.4.7-1+b2 · arm64 · trixie
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · 13
[lua5.4]Fixed
Source package: [lua5.4]
Details (2)
- 5.4.7-1+b2 · amd64 · trixie
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · 13
- 5.4.7-1+b2 · arm64 · trixie
  Fixed · Fixed: 5.4.1-1
  dsa · lua5.4 · debian · 13

Observed: Oct 23, 2026, 5:49:10 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]