MediumFix available
e2fsprogs — security advisory
A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.
- Products
- e2fsprogs
- Affected versions
- Not specified
- Fixed versions
- 1.45.5-1
- CVEs
- CVE-2019-5188
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:28 UTC · Revision 1
Source evidence
A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.
osv:DEBIAN-CVE-2019-5188
e2fsprogs
Fixed versions: 1.45.5-1
e2fsprogs
Fixed versions: 1.45.5-1
e2fsprogs
Fixed versions: 1.45.5-1
Complete source record
{
"id": "6838b907f1eae7088e19112c7d5d946d8323640a59326cbc6dffdc812565f706",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2019-5188",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2019-5188",
"summary": "A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.",
"evidence": "osv:DEBIAN-CVE-2019-5188",
"products": [
{
"name": {
"value": "e2fsprogs",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.45.5-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "e2fsprogs",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.45.5-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "e2fsprogs",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.45.5-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2019-5188",
"aliases": [
"DEBIAN-CVE-2019-5188"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.45.5-1"
}
]
}
],
"package": {
"name": "e2fsprogs",
"purl": "pkg:deb/debian/e2fsprogs?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-5188.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.45.5-1"
}
]
}
],
"package": {
"name": "e2fsprogs",
"purl": "pkg:deb/debian/e2fsprogs?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-5188.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.45.5-1"
}
]
}
],
"package": {
"name": "e2fsprogs",
"purl": "pkg:deb/debian/e2fsprogs?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-5188.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T07:47:34.340279118Z",
"provider": "osv",
"upstream": [
"CVE-2019-5188"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2019-5188"
]
},
"related_cves": [
{
"value": "CVE-2019-5188",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 322257,
"published_at": "2020-01-08T16:15:11.5+00:00"
}