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CVE-2014-8601

PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows remote attackers...

5.0 MediumFix available

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.

Exploit likelihood

68.9%Up 67.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

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.

Record
CVE-2014-8601
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-399
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2014-8601
Updated
2026-11-02
EUVDEUVD-2014-8438 No score

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.

Record
EUVD-2014-8438
Updated
2026-11-03
GitHub AdvisoriesGHSA-cmfg-cqcc-qpqf No score

PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows remote attackers...

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.

Record
GHSA-cmfg-cqcc-qpqf
Updated
2026-11-02
OSV No score

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.

Record
CVE-2014-8601
Updated
2026-11-02
OSVDEBIAN-CVE-2014-8601 No score

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.

Record
DEBIAN-CVE-2014-8601
Updated
2026-11-02
OSVMGASA-2014-0522 No score

Updated pdns-recursor packages fix CVE-2014-8601

Updated pdns-recursor package fixes security vulnerability:

PowerDNS Recursor before version 3.6.2, could be negatively impacted by specially configured, hard to resolve domain names. A remote attacker, by sending a query for such a domain name, could cause severe performance degradation in PowerDNS Recursor, causing a denial of service (CVE-2014-8601).

The pdns-recursor package has been updated to version 3.6.2, fixing this issue and several other bugs, as well as providing additional features.

Record
MGASA-2014-0522
Updated
2026-11-02
OSVopenSUSE-SU-2024:10537-1 No score

pdns-recursor-4.0.3-1.2 on GA media

These are all security issues fixed in the pdns-recursor-4.0.3-1.2 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10537-1
Updated
2026-11-02
OSVUBUNTU-CVE-2014-8601 No score

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.

Record
UBUNTU-CVE-2014-8601
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
pdns-recursor
Debian:12
before 3.6.2-1
3.6.2-1
pdns-recursor
Debian:13
before 3.6.2-1
3.6.2-1
pdns-recursor
Debian:14
before 3.6.2-1
3.6.2-1
pdns-recursor
Debian:6.0
before 3.2-4+deb6u1, plus listed versions
3.2-4
3.2-4+deb6u1
pdns-recursor
Debian:7
before 3.3-3+deb7u1, plus listed versions
3.3-3
3.3-3+deb7u1
pdns-recursor
Mageia:4
before 3.6.2-1.1.mga4
3.6.2-1.1.mga4
pdns-recursor
Ubuntu:14.04:LTS
before 3.5.3-1ubuntu0.1, plus listed versions
3.3-33.5.3-1
3.5.3-1ubuntu0.1
pdns-recursor
openSUSE:Tumbleweed
From an advisory covering 4 CVEs
before 4.0.3-1.2
4.0.3-1.2

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-8601 is a medium vulnerability (CVSS 5.0) in Powerdns Recursor, published December 10, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 68.9%, the 99th percentile. Fixed in pdns-recursor 3.6.2-1.

References

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