CVE-2018-14663

2018-11-2622:00:00

CWE-20

redhat

www.cve.org

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

5.9 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.8%

JSON

An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the ‘useClientSubnet’ or the experimental ‘addXPF’ parameters are used when declaring a new backend.

CNA Affected

[
  {
    "product": "dnsdist",
    "vendor": "[UNKNOWN]",
    "versions": [
      {
        "status": "affected",
        "version": "1.3.3"
      }
    ]
  }
]