Resource Exhaustion Affecting unbound-utils package, versions <0:1.24.2-7.el10


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.74% (76th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL10-UNBOUNDUTILS-16763799
  • published20 May 2026
  • disclosed9 May 2024

Introduced: 9 May 2024

CVE-2024-33655  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:10 unbound-utils to version 0:1.24.2-7.el10 or higher.
This issue was patched in RHSA-2026:18556.

NVD Description

Note: Versions mentioned in the description apply only to the upstream unbound-utils package and not the unbound-utils package as distributed by RHEL. See How to fix? for RHEL:10 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 Base Scores

version 3.1