Debian Security Advisory
DSA-4570-1 mosquitto -- security update
- Date Reported:
- 17 Nov 2019
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 940654.
In Mitre's CVE dictionary: CVE-2019-11779.
- More information:
A vulnerability was discovered in mosquitto, a MQTT version 3.1/3.1.1 compatible message broker, allowing a malicious MQTT client to cause a denial of service (stack overflow and daemon crash), by sending a specially crafted SUBSCRIBE packet containing a topic with a extremely deep hierarchy.
For the stable distribution (buster), this problem has been fixed in version 1.5.7-1+deb10u1.
We recommend that you upgrade your mosquitto packages.
For the detailed security status of mosquitto please refer to its security tracker page at: https://security-tracker.debian.org/tracker/mosquitto