Subject: [ASA-201707-16] 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://github.com/eclipse/mosquitto/issues/468
https://github.com/eclipse/mosquitto/commit/09cb1b61c8f48284d9c42bd911faa7525cc689c7
https://security.archlinux.org/CVE-2017-9868