This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-34431 →

DEBIAN-CVE-2021-34431

In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a...

Original description

The description as published by the source.

In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 mosquitto

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.11-1"}]}]

Debian:13 mosquitto

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.11-1"}]}]

Debian:14 mosquitto

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.11-1"}]}]

References

advisory security-tracker.debian.org