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CVE-2016-7068

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CVE-2016-7068

Published: Sep 11, 2018

Modified: Aug 6, 2024

PUBLISHED

CVSS v3.0

5.3

MEDIUM

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.

VendorProductVersions

Open-Xchange

pdns

affected
3.4.11
affected
4.0.2
affected
3.7.4
affected
4.0.4

Weaknesses (CWE)

CWE-20

CVSS v3.0 Details

CVSS v3.0 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

DSA-3764
vendor-advisory
x_refsource_DEBIAN
DSA-3763
vendor-advisory
x_refsource_DEBIAN

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