CVE-2016-7068

Published on: 09/11/2018 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:27:06 PM UTC

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Certain versions of Debian Linux from Debian contain the following vulnerability:

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.

  • CVE-2016-7068 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo Open-Xchange - pdns version 3.4.11
  • Affected Vendor/Software: URL Logo Open-Xchange - pdns version 4.0.2
  • Affected Vendor/Software: URL Logo Open-Xchange - pdns version 3.7.4
  • Affected Vendor/Software: URL Logo Open-Xchange - pdns version 4.0.4

CVSS3 Score: 7.5 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE NONE HIGH

CVSS2 Score: 7.8 - HIGH

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

CVE References

Description Tags Link
Debian -- Security Information -- DSA-3764-1 pdns Third Party Advisory
www.debian.org
Depreciated Link
text/html
URL Logo DEBIAN DSA-3764
1627365 – (CVE-2016-7068) CVE-2016-7068 pdns: Crafted queries can cause abnormal CPU usage Issue Tracking
Third Party Advisory
bugzilla.redhat.com
text/html
URL Logo CONFIRM bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068
Debian -- Security Information -- DSA-3763-1 pdns-recursor Third Party Advisory
www.debian.org
Depreciated Link
text/html
URL Logo DEBIAN DSA-3763
Advisory 2016-02 Vendor Advisory
doc.powerdns.com
text/html
URL Logo CONFIRM doc.powerdns.com/md/security/powerdns-advisory-2016-02/

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
DebianDebian Linux8.0AllAllAll
Operating
System
DebianDebian Linux8.0AllAllAll
ApplicationPowerdnsAuthoritativeAllAllAllAll
ApplicationPowerdnsAuthoritativeAllAllAllAll
ApplicationPowerdnsRecursorAllAllAllAll
ApplicationPowerdnsRecursorAllAllAllAll
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*:
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*: