CVE-2016-7068

2018-09-1113:00:00

CWE-20

redhat

www.cve.org

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

7.1 High

AI Score

Confidence

High

0.009 Low

EPSS

Percentile

82.7%

JSON

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.

CNA Affected

[
  {
    "product": "pdns",
    "vendor": "Open-Xchange",
    "versions": [
      {
        "status": "affected",
        "version": "3.4.11"
      },
      {
        "status": "affected",
        "version": "4.0.2"
      },
      {
        "status": "affected",
        "version": "3.7.4"
      },
      {
        "status": "affected",
        "version": "4.0.4"
      }
    ]
  }
]