UnratedFix available
openssh — security advisory
OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.
- Products
- openssh
- Affected versions
- Not specified
- Fixed versions
- 1:3.8.1p1-8.sarge.4
- CVEs
- CVE-2003-0190
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:10 UTC · Revision 1
Source evidence
OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.
osv:DEBIAN-CVE-2003-0190
openssh
Fixed versions: 1:3.8.1p1-8.sarge.4
openssh
Fixed versions: 1:3.8.1p1-8.sarge.4
openssh
Fixed versions: 1:3.8.1p1-8.sarge.4
Complete source record
{
"id": "49747c2927ea88d70c39bd7660d06a43709bff176dba113ac3d4686f100e4c1f",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2003-0190",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2003-0190",
"summary": "OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.",
"evidence": "osv:DEBIAN-CVE-2003-0190",
"products": [
{
"name": {
"value": "openssh",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:3.8.1p1-8.sarge.4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:3.8.1p1-8.sarge.4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:3.8.1p1-8.sarge.4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2003-0190",
"aliases": [
"DEBIAN-CVE-2003-0190"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:3.8.1p1-8.sarge.4"
}
]
}
],
"package": {
"name": "openssh",
"purl": "pkg:deb/debian/openssh?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2003-0190.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:3.8.1p1-8.sarge.4"
}
]
}
],
"package": {
"name": "openssh",
"purl": "pkg:deb/debian/openssh?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2003-0190.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:3.8.1p1-8.sarge.4"
}
]
}
],
"package": {
"name": "openssh",
"purl": "pkg:deb/debian/openssh?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2003-0190.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-22T23:47:20.731046409Z",
"provider": "osv",
"upstream": [
"CVE-2003-0190"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2003-0190"
]
},
"related_cves": [
{
"value": "CVE-2003-0190",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 410280,
"published_at": "2003-05-12T04:00:00+00:00"
}