Arch Linux ASA-201707-16 Medium: Mosquitto Information Disclosure

Arch Linux Security Advisory ASA-201707-16
=========================================
Severity: Medium
Date    : 2017-07-16
CVE-ID  : CVE-2017-9868
Package : mosquitto
Type    : information disclosure
Remote  : No
Link    : https://security.archlinux.org/AVG-353

Summary
======
The package mosquitto before version 1.4.14-1 is vulnerable to
information disclosure.

Resolution
=========
Upgrade to 1.4.14-1.

# pacman -Syu "mosquitto>=1.4.14-1"

The problem has been fixed upstream in version 1.4.14.

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

Description
==========
In Mosquitto through 1.4.12, mosquitto.db (aka the persistence file) is
world readable, which allows local users to obtain sensitive MQTT topic
information.

Impact
=====
A local attacker could access sensitive information by reading the
mosquitto.db.

References
=========
https://mosquitto.org/2017/06/security-advisory-cve-2017-9868/
https://security.archlinux.org/CVE-2017-9868