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CVE-2016-7068

Published: Sep 11, 2018Updated: Nov 21, 2024 Sources: CVE List NVDCWE-20
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
7.3%
Top 6.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-20CWE-400

Affected Products

pdnsOpen-XchangeCommunications
authoritativepowerdns
On-premNetwork Device
Networking Infrastructure / dns-dhcp-ntp
recursorpowerdns
On-premNetwork Device
Networking Infrastructure / dns-dhcp-ntp
debian linuxdebian
On-premOS
Operating Systems / linux-distro
open-xchangecommercialDECommunicationsaka open-xchange gmbh, ox
powerdnsoss-projectDKNetworking Infrastructureaka powerdns recursor, powerdns authoritative, dnsdist
debianoss-projectGBOperating Systemsaka debian gnu/linux

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068
bugzilla.redhat.com
https://www.debian.org/security/2017/dsa-3764
debian.org
https://www.debian.org/security/2017/dsa-3763
debian.org
and 1 more references View all →

Timeline

Published
Sep 11, 2018
Last Updated
Nov 21, 2024

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