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


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-AMZN2023-DNSMASQDEBUGINFO-19457658
  • published1 Sept 2026
  • disclosed14 Aug 2026

Introduced: 14 Aug 2026

CVE-2026-13002  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 dnsmasq-debuginfo 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-debuginfo package and not the dnsmasq-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flow has been identified into dnssec.c library, causing an infinite loop to dnsmasq service. An attacker who controls any DNSSEC-signed zone can hang the dnsmasq process with a single crafted response, killing all DNS resolution for its clients.

CVSS Base Scores

version 3.1