Improper Input Validation Affecting dnsmasq package, versions <2.66-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.8% (85th percentile)

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  • Snyk IDSNYK-ECHOLATEST-DNSMASQ-18912363
  • published18 Aug 2026
  • disclosed5 Mar 2013

Introduced: 5 Mar 2013

CVE-2013-0198  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest dnsmasq to version 2.66-1 or higher.

NVD Description

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

Dnsmasq before 2.66test2, when used with certain libvirt configurations, replies to queries from prohibited interfaces, which allows remote attackers to cause a denial of service (traffic amplification) via spoofed TCP based DNS queries. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3411.

CVSS Base Scores

version 3.1