Arch Linux Security Advisory ASA-202010-8
========================================
Severity: High
Date    : 2020-10-18
CVE-ID  : CVE-2020-27187
Package : kpmcore
Type    : privilege escalation
Remote  : No
Link    : https://security.archlinux.org/AVG-1253

Summary
======
The package kpmcore before version 4.2.0-1 is vulnerable to privilege
escalation.

Resolution
=========
Upgrade to 4.2.0-1.

# pacman -Syu "kpmcore>=4.2.0-1"

The problem has been fixed upstream in version 4.2.0.

Workaround
=========
None.

Description
==========
kpmcore_externalcommand helper contains a logic flaw in which the
service invoking dbus is not properly checked. An attacker on your
local machine can replace /etc/fstab, execute mount and other
partitioning related commands while KDE Partition Manager is running.
mount command can then be used to gain full root privileges.

Impact
=====
A local attacker is able to escalate privileges, modify the filesystem
and launch partition commands on the host while the program is running.

References
=========
https://kde.org/info/security/advisory-20201017-1.txt
https://invent.kde.org/system/kpmcore/-/commit/c466c5db11b5cee546d1ec0594c2f1105a354fed
https://invent.kde.org/system/kpmcore/-/commit/7ec4b611dcf822439b081613cca4184689266454
https://security.archlinux.org/CVE-2020-27187

ArchLinux: 202010-8: kpmcore: privilege escalation

October 21, 2020

Summary

kpmcore_externalcommand helper contains a logic flaw in which the service invoking dbus is not properly checked. An attacker on your local machine can replace /etc/fstab, execute mount and other partitioning related commands while KDE Partition Manager is running. mount command can then be used to gain full root privileges.

Resolution

Upgrade to 4.2.0-1. # pacman -Syu "kpmcore>=4.2.0-1"
The problem has been fixed upstream in version 4.2.0.

References

https://kde.org/info/security/advisory-20201017-1.txt https://invent.kde.org/system/kpmcore/-/commit/c466c5db11b5cee546d1ec0594c2f1105a354fed https://invent.kde.org/system/kpmcore/-/commit/7ec4b611dcf822439b081613cca4184689266454 https://security.archlinux.org/CVE-2020-27187

Severity
Package : kpmcore
Type : privilege escalation
Remote : No
Link : https://security.archlinux.org/AVG-1253

Workaround

None.

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