Resource management error in PowerDNS Recursor - CVE-2014-8601

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Main Vulnerability Database Vulnerabilities #VU111725

Resource management error in PowerDNS Recursor - CVE-2014-8601

Published: September 6, 2016 / Updated: June 21, 2025


Vulnerability identifier: #VU111725
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-8601
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows remote attackers to cause a denial of service ("performance degradations") via a large or infinite number of referrals, as demonstrated by resolving domains hosted by ezdns.it.


Affected software

PowerDNS Recursor
Gentoo Linux
net-dns/pdns-recursor

How to mitigate CVE-2014-8601

Install update from vendor's website.

PowerDNS Recursor - update to 3.6.2
net-dns/pdns-recursor - update to 3.6.1-r1

External References

Related Security Bulletins