MediumFix available
lua5.3, lua5.4 — security advisory
ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).
- Products
- lua5.3, lua5.4
- Affected versions
- Not specified
- Fixed versions
- 5.3.6-1, 5.4.1-1
- CVEs
- CVE-2020-24370
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:50 UTC · Revision 1
Source evidence
ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).
osv:DEBIAN-CVE-2020-24370
lua5.3
Fixed versions: 5.3.6-1
lua5.3
Fixed versions: 5.3.6-1
lua5.3
Fixed versions: 5.3.6-1
lua5.4
Fixed versions: 5.4.1-1
lua5.4
Fixed versions: 5.4.1-1
lua5.4
Fixed versions: 5.4.1-1
Complete source record
{
"id": "b4986a7f1dfa19b58ff25e46b763978325b3c5d2587eceac598dd79d63a56f23",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-24370",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-24370",
"summary": "ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).",
"evidence": "osv:DEBIAN-CVE-2020-24370",
"products": [
{
"name": {
"value": "lua5.3",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.6-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "lua5.3",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.6-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "lua5.3",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.3.6-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "lua5.4",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.4.1-1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "lua5.4",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.4.1-1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "lua5.4",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.4.1-1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2020-24370",
"aliases": [
"DEBIAN-CVE-2020-24370"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.6-1"
}
]
}
],
"package": {
"name": "lua5.3",
"purl": "pkg:deb/debian/lua5.3?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-24370.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.6-1"
}
]
}
],
"package": {
"name": "lua5.3",
"purl": "pkg:deb/debian/lua5.3?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-24370.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.3.6-1"
}
]
}
],
"package": {
"name": "lua5.3",
"purl": "pkg:deb/debian/lua5.3?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-24370.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.1-1"
}
]
}
],
"package": {
"name": "lua5.4",
"purl": "pkg:deb/debian/lua5.4?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-24370.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.1-1"
}
]
}
],
"package": {
"name": "lua5.4",
"purl": "pkg:deb/debian/lua5.4?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-24370.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.1-1"
}
]
}
],
"package": {
"name": "lua5.4",
"purl": "pkg:deb/debian/lua5.4?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-24370.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:01:02.515172986Z",
"provider": "osv",
"upstream": [
"CVE-2020-24370"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-24370"
]
},
"related_cves": [
{
"value": "CVE-2020-24370",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451437,
"published_at": "2020-08-17T17:15:13.877+00:00"
}