Debian Security Advisory

DLA-1146-1 mosquitto -- LTS security update

Date Reported:
26 Oct 2017
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 865959.
In Mitre's CVE dictionary: CVE-2017-9868.
More information:

mosquitto's persistence file (mosquitto.db) was created in a world-readable way thus allowing local users to obtain sensitive MQTT topic information. While the application has been fixed to set proper permissions by default, you still have to manually fix the permissions on any existing file.

For Debian 7 Wheezy, these problems have been fixed in version 0.15-2+deb7u2.

We recommend that you upgrade your mosquitto packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: