Resource Management Errors Affecting unbound package, versions <1.4.14-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.94% (86th percentile)

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  • Snyk IDSNYK-ECHOLATEST-UNBOUND-18234932
  • published23 Jul 2026
  • disclosed20 Dec 2011

Introduced: 20 Dec 2011

CVE-2011-4528  (opens in a new tab)
CWE-399  (opens in a new tab)

How to fix?

Upgrade Echo:latest unbound to version 1.4.14-1 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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Unbound before 1.4.13p2 attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone, which allows remote DNS servers to cause a denial of service (daemon crash) via a crafted response.

CVSS Base Scores

version 3.1