kpmcore — security advisory
An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand helper contains a logic flaw in which the service invoking D-Bus is not properly checked. An attacker on the local machine can replace /etc/fstab, and execute mount and other partitioning related commands, while KDE Partition Manager is running. the mount command can then be used to gain full root privileges.
- Products
- kpmcore
- Affected versions
- Not specified
- Fixed versions
- 4.2.0-1
- CVEs
- CVE-2020-27187
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:30 UTC · Revision 1
Source evidence
An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand helper contains a logic flaw in which the service invoking D-Bus is not properly checked. An attacker on the local machine can replace /etc/fstab, and execute mount and other partitioning related commands, while KDE Partition Manager is running. the mount command can then be used to gain full root privileges.
osv:DEBIAN-CVE-2020-27187
kpmcore
Fixed versions: 4.2.0-1
kpmcore
Fixed versions: 4.2.0-1
kpmcore
Fixed versions: 4.2.0-1
Complete source record
{
"id": "746f0086314d17cbc356f8424624cb150f8093b54524ad43c8593db1743f505a",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-27187",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-27187",
"summary": "An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand helper contains a logic flaw in which the service invoking D-Bus is not properly checked. An attacker on the local machine can replace /etc/fstab, and execute mount and other partitioning related commands, while KDE Partition Manager is running. the mount command can then be used to gain full root privileges.",
"evidence": "osv:DEBIAN-CVE-2020-27187",
"products": [
{
"name": {
"value": "kpmcore",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.0-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kpmcore",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.0-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kpmcore",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2020-27187",
"aliases": [
"DEBIAN-CVE-2020-27187"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.0-1"
}
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}
],
"package": {
"name": "kpmcore",
"purl": "pkg:deb/debian/kpmcore?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27187.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.0-1"
}
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}
],
"package": {
"name": "kpmcore",
"purl": "pkg:deb/debian/kpmcore?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27187.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.0-1"
}
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],
"package": {
"name": "kpmcore",
"purl": "pkg:deb/debian/kpmcore?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27187.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:31.369234025Z",
"provider": "osv",
"upstream": [
"CVE-2020-27187"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-27187"
]
},
"related_cves": [
{
"value": "CVE-2020-27187",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 452435,
"published_at": "2020-10-26T17:15:12.813+00:00"
}