vulnerability

Ubuntu: USN-6492-1 (CVE-2023-28366): Mosquitto vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Sep 1, 2023
Added
Nov 22, 2023
Modified
Apr 16, 2026

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.

Solutions

ubuntu-pro-upgrade-mosquittoubuntu-upgrade-mosquitto
Title
Rapid7 Labs

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