Improper Access Control Affecting dnsmasq-debuginfo package, versions <0:2.76-10.amzn2.1.1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.09% (43rd percentile)

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  • Snyk IDSNYK-AMZN2-DNSMASQDEBUGINFO-1682823
  • published27 Sept 2021
  • disclosed6 Feb 2021

Introduced: 6 Feb 2021

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

How to fix?

Upgrade Amazon-Linux:2 dnsmasq-debuginfo to version 0:2.76-10.amzn2.1.1 or higher.
This issue was patched in ALAS2-2020-1469.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dnsmasq-debuginfo package and not the dnsmasq-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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 Base Scores

version 3.1