CVE-2024-33655 Affecting unbound package, versions <1.20.0-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ALPINE320-UNBOUND-7011975
  • published23 May 2024
  • disclosed6 Jun 2024

Introduced: 23 May 2024

CVE-2024-33655  (opens in a new tab)

How to fix?

Upgrade Alpine:3.20 unbound to version 1.20.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream unbound package and not the unbound package as distributed by Alpine. See How to fix? for Alpine:3.20 relevant fixed versions and status.

The DNS protocol in RFC 1035 and updates allows remote attackers to cause a denial of service (resource consumption) by arranging for DNS queries to be accumulated for seconds, such that responses are later sent in a pulsing burst (which can be considered traffic amplification in some cases), aka the "DNSBomb" issue.

CVSS Scores

version 3.1