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Ubuntu 14.04 LTS : Dnsmasq vulnerability (USN-7689-1)

low Nessus Plugin ID 249256

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 14.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-7689-1 advisory.

 Xu Mingjie discovered that Dnsmasq did not correctly handle certain memory operations. A remote attacker could possibly use this issue to cause a denial of service.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected dnsmasq, dnsmasq-base and / or dnsmasq-utils packages.

See Also

https://ubuntu.com/security/notices/USN-7689-1

Plugin Details

Severity: Low

ID: 249256

File Name: ubuntu_USN-7689-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 8/14/2025

Updated: 8/14/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2019-14834

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:dnsmasq-base, p-cpe:/a:canonical:ubuntu_linux:dnsmasq-utils, p-cpe:/a:canonical:ubuntu_linux:dnsmasq

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/11/2025

Vulnerability Publication Date: 1/7/2020

Reference Information

CVE: CVE-2019-14834

IAVA: 2020-A-0194-S

USN: 7689-1