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FreeBSD : mosquitto -- NULL pointer dereference (cc553d79-e1f0-4b94-89f2-bacad42ee826)

high Nessus Plugin ID 152071

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

Roger Light reports :

If an authenticated client connected with MQTT v5 sent a malformed CONNACK message to the broker a NULL pointer dereference occurred, most likely resulting in a segfault.

(Note: a CVE is referenced in the github commit but it appears to be for a python-bleach vulnerability so it is not included here.)

Solution

Update the affected package.

See Also

http://www.nessus.org/u?307c3dd5

http://www.nessus.org/u?bab23eca

Plugin Details

Severity: High

ID: 152071

File Name: freebsd_pkg_cc553d79e1f04b9489f2bacad42ee826.nasl

Version: 1.1

Type: local

Published: 7/26/2021

Updated: 7/26/2021

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:mosquitto, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 7/24/2021

Vulnerability Publication Date: 4/10/2021