CVE-2020-14312

2021-02-0523:16:33

CWE-284

redhat

www.cve.org

dnsmasq

default configuration

ddos

AI Score

5.7

Confidence

High

EPSS

0.001

Percentile

36.9%

JSON

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.

CNA Affected

[
  {
    "product": "dnsmasq",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Fedora version prior to 31"
      },
      {
        "status": "affected",
        "version": "all RHEL versions"
      }
    ]
  }
]