CVE catalog

CVE-2020-24342

lua5.4 affected and fixed versions

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.

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Jul 6, 2020, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.08% · Oct 27, 2026

Projects and upstream resources

[lua5.4][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debiantrixie	lua5.4	`5.4.7-1`	Fixed	[CVE-2020-24342]
Debiansid	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debiansid	lua5.4	`5.4.9-2`	Fixed	[CVE-2020-24342]
Debianforky	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debianforky	lua5.4	`5.4.9-1`	Fixed	[CVE-2020-24342]
Debianbookworm	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debianbookworm	lua5.4	`5.4.4-3+deb12u1`	Fixed	[CVE-2020-24342]

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Debianbookworm	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debianbookworm	lua5.4	`5.4.4-3+deb12u1`	Fixed	[CVE-2020-24342]
Debianforky	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debianforky	lua5.4	`5.4.9-1`	Fixed	[CVE-2020-24342]
Debiansid	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debiansid	lua5.4	`5.4.9-2`	Fixed	[CVE-2020-24342]
Debiantrixie	lua5.4	`5.4.1-1`	FixedDistribution-reported fixed boundary	[CVE-2020-24342]
Debiantrixie	lua5.4	`5.4.7-1`	Fixed	[CVE-2020-24342]

Original provider fields

{
  "package_releases": [
    {
      "name": "lua5.4",
      "status": "fixed",
      "release": "sid",
      "version": "5.4.9-2"
    },
    {
      "name": "lua5.4",
      "status": "fixed",
      "release": "forky",
      "version": "5.4.9-1"
    },
    {
      "name": "lua5.4",
      "status": "fixed",
      "release": "trixie",
      "version": "5.4.7-1"
    },
    {
      "name": "lua5.4",
      "status": "fixed",
      "release": "bookworm",
      "version": "5.4.4-3+deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 971012,
      "name": "lua5.4",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "5.4.1-1"
    },
    {
      "bug": 971012,
      "name": "lua5.4",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "5.4.1-1"
    },
    {
      "bug": 971012,
      "name": "lua5.4",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "5.4.1-1"
    },
    {
      "bug": 971012,
      "name": "lua5.4",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "5.4.1-1"
    }
  ],
  "distribution_packages": []
}

[Debian bug #971012]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[liblua5.4-0]Unknown
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]Unknown
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]Unknown
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
[lua5.4]Unknown
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]Unknown
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]Unknown
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]Unknown
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, 5:49:09 PM UTC

References

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