Description
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.
References (4)
Core 4
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/KDE/partitionmanager/compare/v4.1.0...v4.2.0
Patch, Vendor Advisory x_refsource_confirm
https://kde.org/info/security/advisory-20201017-1.txt
Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1890199
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202011-03
Scores
CVSS v3
7.8
EPSS
0.0012
EPSS Percentile
31.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
Status
published
Products (1)
kde/partition_manager
4.1.0 - 4.2.0
Published
Oct 26, 2020
Tracked Since
Feb 18, 2026