sudo — security advisory
Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.
- Products
- sudo
- Affected versions
- Not specified
- Fixed versions
- 1.9.12p1-1
- CVEs
- CVE-2022-43995
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 15:32 UTC · Revision 1
Source evidence
Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.
osv:DEBIAN-CVE-2022-43995
sudo
Fixed versions: 1.9.12p1-1
sudo
Fixed versions: 1.9.12p1-1
sudo
Fixed versions: 1.9.12p1-1
Complete source record
{
"id": "8544266590041224d88315eb37c2a036fef9b27e5ae41d102f2e4e71c61cfddb",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-43995",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-43995",
"summary": "Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.",
"evidence": "osv:DEBIAN-CVE-2022-43995",
"products": [
{
"name": {
"value": "sudo",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.9.12p1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "sudo",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.9.12p1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2022-43995",
"aliases": [
"DEBIAN-CVE-2022-43995"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.12p1-1"
}
]
}
],
"package": {
"name": "sudo",
"purl": "pkg:deb/debian/sudo?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-43995.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.12p1-1"
}
]
}
],
"package": {
"name": "sudo",
"purl": "pkg:deb/debian/sudo?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-43995.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.12p1-1"
}
]
}
],
"package": {
"name": "sudo",
"purl": "pkg:deb/debian/sudo?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-43995.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-15T08:03:06.388157971Z",
"provider": "osv",
"upstream": [
"CVE-2022-43995"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-43995"
]
},
"related_cves": [
{
"value": "CVE-2022-43995",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 325178,
"published_at": "2022-11-02T14:15:16.187+00:00"
}