Loop with Unreachable Exit Condition ('Infinite Loop') Affecting dnsmasq-utils package, versions <0:2.90-1.amzn2023.0.3


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.07% (64th percentile)

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  • Snyk IDSNYK-AMZN2023-DNSMASQUTILS-16885367
  • published27 May 2026
  • disclosed11 May 2026

Introduced: 11 May 2026

CVE-2026-4890  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 dnsmasq-utils to version 0:2.90-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2026-1729.

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 Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.

CVSS Base Scores

version 3.1