PowerDNS up to 3.4.9 Authoritative Server Query qname resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in PowerDNS up to 3.4.9. This impacts an unknown function of the component Authoritative Server Query Handler. Executing a manipulation of the argument qname can lead to resource management. This vulnerability appears as CVE-2016-5426. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in PowerDNS up to 3.4.9 (Domain Name Software) and classified as critical. This vulnerability affects some unknown functionality of the component Authoritative Server Query Handler. The manipulation of the argument qname with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a denial of service (backend CPU consumption) via a long qname.

The weakness was presented 09/09/2016 by Florian Heinz and Martin Kluge as PowerDNS Security Advisory 2016-01 as confirmed advisory (Website). The advisory is shared for download at doc.powerdns.com. The public release was coordinated in cooperation with the vendor. This vulnerability was named CVE-2016-5426 since 06/10/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 93419 (Debian DSA-3664-1 : pdns - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276190 (Fedora Security Update for pdns (FEDORA-2016-efffcc7aec)).

Upgrading to version 3.4.10 or 4.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93419), SecurityFocus (BID 92917†) and SecurityTracker (ID 1036761†). See VDB-91409 and VDB-92197 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93419
Nessus Name: Debian DSA-3664-1 : pdns - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 702904
OpenVAS Name: Fedora Update for pdns FEDORA-2016-efffcc7aec
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: PowerDNS 3.4.10/4.0
Patch: github.com

Timelineinfo

06/10/2016 🔍
09/09/2016 +91 days 🔍
09/09/2016 +0 days 🔍
09/09/2016 +0 days 🔍
09/09/2016 +0 days 🔍
09/11/2016 +2 days 🔍
09/12/2016 +1 days 🔍
09/21/2016 +9 days 🔍
09/15/2022 +2185 days 🔍

Sourcesinfo

Advisory: PowerDNS Security Advisory 2016-01
Researcher: Florian Heinz, Martin Kluge
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2016-5426 (🔍)
GCVE (CVE): GCVE-0-2016-5426
GCVE (VulDB): GCVE-100-91408

OVAL: 🔍

SecurityFocus: 92917 - PowerDNS Multiple Denial of Service Vulnerabilities
SecurityTracker: 1036761

See also: 🔍

Entryinfo

Created: 09/11/2016 11:19
Updated: 09/15/2022 11:04
Changes: 09/11/2016 11:19 (75), 04/13/2019 12:57 (12), 09/15/2022 11:04 (4)
Complete: 🔍
Cache ID: 216:3B6:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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