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CVE-2020-27187

An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand...

7.8 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.43%Down 0.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.8

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.

Record
CVE-2020-27187
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2020-27187
Updated
2026-11-02
EUVDEUVD-2020-19710 No score

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.

Record
EUVD-2020-19710
Updated
2026-11-03
GitHub AdvisoriesGHSA-gpcw-46fq-3vqf 7.8

An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand...

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.

Record
GHSA-gpcw-46fq-3vqf
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-77
Updated
2026-11-02
OSVALPINE-CVE-2020-27187 7.8

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.

Record
ALPINE-CVE-2020-27187
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSV 7.8

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.

Record
CVE-2020-27187
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-27187 7.8

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.

Record
DEBIAN-CVE-2020-27187
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-27187 7.8

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.

Record
UBUNTU-CVE-2020-27187
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kpmcore
Alpine:v3.12
 before 4.1.0-r0
4.1.0-r0
kpmcore
Alpine:v3.13
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.14
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.15
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.16
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.17
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.18
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.19
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.20
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.21
 before 4.2.0-r0
4.2.0-r0
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Affected packages
PackageAffectedFixed
kpmcore
Alpine:v3.22
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.23
 before 4.2.0-r0
4.2.0-r0
kpmcore
Alpine:v3.24
 before 4.2.0-r0
4.2.0-r0
kpmcore
Debian:12
 before 4.2.0-1
4.2.0-1
kpmcore
Debian:13
 before 4.2.0-1
4.2.0-1
kpmcore
Debian:14
 before 4.2.0-1
4.2.0-1
kpmcore
Ubuntu:18.04:LTS
 All versions, plus listed versions
3.1.2-13.2.0-23.2.1-2ubuntu13.2.1-33.3.0-23.3.0-2ubuntu1
 None known
kpmcore
Ubuntu:20.04:LTS
 All versions, plus listed versions
3.3.0-54.0.1-24.1.0-0ubuntu14.1.0-2
 None known

History

History
RecordedChangedSources
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-27187 is a high vulnerability (CVSS 7.8) in Kde Partition Manager, published October 26, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. Fixed in kpmcore 4.1.0-r0.

References

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