Debian DLA-1525-1 : mosquitto security update

medium Nessus Plugin ID 117835

Synopsis

The remote Debian host is missing a security update.

Description

CVE-2017-7653

As invalid UTF-8 strings are not correctly checked, an attacker could cause a denial of service to other clients by disconnecting them from the broker with special crafted topics.

CVE-2017-7654

Due to a memory leak unauthenticated clients can send special crafted CONNECT packets which could cause a denial of service in the broker.

CVE-2017-9868

Due to wrong file permissions local users could obtain topic information from the mosquitto database.

For Debian 8 'Jessie', these problems have been fixed in version 1.3.4-2+deb8u3.

We recommend that you upgrade your mosquitto packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2018/09/msg00036.html

https://packages.debian.org/source/jessie/mosquitto

Plugin Details

Severity: Medium

ID: 117835

File Name: debian_DLA-1525.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/1/2018

Updated: 8/1/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2017-9868

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:python-mosquitto, p-cpe:/a:debian:debian_linux:libmosquittopp1, p-cpe:/a:debian:debian_linux:mosquitto-clients, p-cpe:/a:debian:debian_linux:mosquitto-dbg, p-cpe:/a:debian:debian_linux:python3-mosquitto, p-cpe:/a:debian:debian_linux:libmosquittopp-dev, p-cpe:/a:debian:debian_linux:libmosquitto1, cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:mosquitto, p-cpe:/a:debian:debian_linux:libmosquitto-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2018

Reference Information

CVE: CVE-2017-7653, CVE-2017-7654, CVE-2017-9868