Vulnerability Monitor

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CVE-2015-5470

The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.

Security Impact Summary

CVE-2015-5470 is a security vulnerability that . Impacting 2 products from powerdns, from powerdns organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-11-02T19:59:09.530

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-399

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	powerdns	authoritative	≤ 3.3.2	Yes
Application	powerdns	authoritative	3.4.0	Yes
Application	powerdns	authoritative	3.4.1	Yes
Application	powerdns	authoritative	3.4.2	Yes
Application	powerdns	authoritative	3.4.3	Yes
Application	powerdns	authoritative	3.4.4	Yes
Application	powerdns	recursor	≤ 3.6.3	Yes
Application	powerdns	recursor	3.7.1	Yes
Application	powerdns	recursor	3.7.2	Yes

References

http://www.openwall.com/lists/oss-security/2015/07/07/6 ([email protected])
http://www.openwall.com/lists/oss-security/2015/07/10/8 ([email protected])
https://doc.powerdns.com/md/security/powerdns-advisory-2015-01/ Patch, Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2015/07/07/6 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/07/10/8 (af854a3a-2127-422b-91ae-364da2661108)
https://doc.powerdns.com/md/security/powerdns-advisory-2015-01/ Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For powerdns's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.