MediumFix available
gdm3 — security advisory
gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.
- Products
- gdm3
- Affected versions
- Not specified
- Fixed versions
- 3.38.2-1
- CVEs
- CVE-2020-16125
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:27 UTC · Revision 1
Source evidence
gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.
osv:DEBIAN-CVE-2020-16125
gdm3
Fixed versions: 3.38.2-1
gdm3
Fixed versions: 3.38.2-1
gdm3
Fixed versions: 3.38.2-1
Complete source record
{
"id": "1c0b373e5390824be21f312ff7f047cc50a6097c84e8b38e60b47c79cbecaad1",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-16125",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-16125",
"summary": "gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.",
"evidence": "osv:DEBIAN-CVE-2020-16125",
"products": [
{
"name": {
"value": "gdm3",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.38.2-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gdm3",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.38.2-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gdm3",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.38.2-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2020-16125",
"aliases": [
"DEBIAN-CVE-2020-16125"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.38.2-1"
}
]
}
],
"package": {
"name": "gdm3",
"purl": "pkg:deb/debian/gdm3?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-16125.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.38.2-1"
}
]
}
],
"package": {
"name": "gdm3",
"purl": "pkg:deb/debian/gdm3?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-16125.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.38.2-1"
}
]
}
],
"package": {
"name": "gdm3",
"purl": "pkg:deb/debian/gdm3?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-16125.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:00:10.212512288Z",
"provider": "osv",
"upstream": [
"CVE-2020-16125"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-16125"
]
},
"related_cves": [
{
"value": "CVE-2020-16125",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451009,
"published_at": "2020-11-10T05:15:11.893+00:00"
}