|Description||The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)|
Vulnerable and fixed packages
The table below lists information on source packages.
|mosquitto (PTS)||buster, buster (security)||1.5.7-1+deb10u1||vulnerable|
The information below is based on the following data on fixed versions.
[buster] - mosquitto <ignored> (Minor memory leak which requires rewrite of core functions)
Regression fix: https://github.com/eclipse/mosquitto/commit/bfb373d774d8530e8d6620776304a3e0b0201793
Regression fix: https://github.com/eclipse/mosquitto/commit/28d96d8ebca9f6bdb7f272f1095760953e62d828