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Linux Distros Unpatched Vulnerability : CVE-2020-37127

medium Nessus Plugin ID 298154

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - Dnsmasq-utils 2.79-1 contains a buffer overflow vulnerability in the dhcp_release utility that allows attackers to cause a denial of service by supplying excessive input. Attackers can trigger a core dump and terminate the dhcp_release process by sending a crafted input string longer than 16 characters.
 (CVE-2020-37127)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2020-37127

https://ubuntu.com/security/CVE-2020-37127

Plugin Details

Severity: Medium

ID: 298154

File Name: unpatched_CVE_2020_37127.nasl

Version: 1.4

Type: local

Agent: unix

Family: Misc.

Published: 2/5/2026

Updated: 2/11/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.2

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

CVSS Score Source: CVE-2020-37127

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:dnsmasq-utils, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:dnsmasq-utils, p-cpe:/a:redhat:enterprise_linux:dnsmasq, cpe:/o:centos:centos:8, p-cpe:/a:canonical:ubuntu_linux:dnsmasq, p-cpe:/a:centos:centos:dnsmasq, cpe:/o:redhat:enterprise_linux:10

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/5/2026

Reference Information

CVE: CVE-2020-37127