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NULL Pointer Dereference Affecting mosquitto package, versions <2.0.10

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 0.05% (20th percentile)
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NVD
6.5 medium

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  • Snyk ID SNYK-COCOAPODS-MOSQUITTO-1244070
  • published 8 Apr 2021
  • disclosed 8 Apr 2021
  • credit Bryan Pearson
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Introduced: 8 Apr 2021

CVE-2021-28166 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Mosquitto to version 2.0.10 or higher.

Overview

Mosquitto is an open source implementation of a server for version 3.1 and 3.1.1 of the MQTT protocol.

Affected versions of this package are vulnerable to NULL Pointer Dereference. If an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.