National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-6172 Detail

Current Description

PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H (V3 legend)
Impact Score: 4.0
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.1 HIGH
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3664
http://www.openwall.com/lists/oss-security/2016/07/06/3 Mailing List
http://www.securityfocus.com/bid/91678
http://www.securitytracker.com/id/1036242
https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401 Release Notes
https://github.com/PowerDNS/pdns/issues/4128 Issue Tracking
https://github.com/PowerDNS/pdns/issues/4133 Issue Tracking
https://github.com/PowerDNS/pdns/pull/4134 Issue Tracking
https://github.com/sischkg/xfer-limit/blob/master/README.md Patch
https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html Mailing List Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Uncontrolled Resource Consumption ('Resource Exhaustion') (CWE-400)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.0.0


Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-6172
NVD Published Date:
09/26/2016
NVD Last Modified:
10/30/2018