Improper Access Control Affecting dnsmasq-utils package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.09% (39th percentile)

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  • Snyk IDSNYK-RHEL8-DNSMASQUTILS-1341583
  • published26 Jul 2021
  • disclosed30 Jun 2020

Introduced: 30 Jun 2020

CVE-2020-14312  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 dnsmasq-utils.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dnsmasq-utils package and not the dnsmasq-utils package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not enabled. Running dnsmasq in this manner may inadvertently make it an open resolver accessible from any address on the internet. This flaw allows an attacker to conduct a Distributed Denial of Service (DDoS) against other systems.

CVSS Scores

version 3.1