CVE-2020-27187

Published: 26 October 2020

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.

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
kpmcore Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	groovy	Ignored (end of life)
	hirsute	Not vulnerable (4.2.0-2)
	impish	Not vulnerable (4.2.0-2)
	jammy	Not vulnerable (4.2.0-2)
	kinetic	Not vulnerable (4.2.0-2)
	lunar	Not vulnerable (4.2.0-2)
	mantic	Not vulnerable (4.2.0-2)
	trusty	Does not exist
	upstream	Released (4.2.0-1)
	xenial	Does not exist

Severity score breakdown

Parameter	Value
Base score	7.8
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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