Arch Linux: ASA-202106-18 Low Severity: PackageKit Information Leak

Arch Linux Security Advisory ASA-202106-18
=========================================
Severity: Low
Date    : 2021-06-01
CVE-ID  : CVE-2020-16121
Package : packagekit
Type    : information disclosure
Remote  : No
Link    : https://security.archlinux.org/AVG-1260

Summary
======
The package packagekit before version 1.2.3-1 is vulnerable to
information disclosure.

Resolution
=========
Upgrade to 1.2.3-1.

# pacman -Syu "packagekit>=1.2.3-1"

The problem has been fixed upstream in version 1.2.3.

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

Description
==========
The InstallFiles, GetFilesLocal and GetDetailsLocal methods of the DBus
interface to PackageKit <= 1.1.13 access files before checking for
authorization. This allows non-privileged users to learn the MIME type
of any file on the system.

Impact
=====
A non-privileged local attacker could learn the MIME type of any file
on the system.

References
=========
https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/1888887
https://github.com/PackageKit/PackageKit/commit/d5e8c59745bf7c521c6f311e6b22b4b67a8b828f
https://security.archlinux.org/CVE-2020-16121