CVE Vulnerability

CVE-2018-14644

An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4. A remote attacker sending a DNS query for a meta-type like OPT can lead to a zone being wrongly cached as failing DNSSEC validation. It only arises if the parent zone is signed, and all the authoritative servers for that parent zone answer with FORMERR to a query for at least one of the meta-types. As a result, subsequent queries from clients requesting DNSSEC validation will be answered with a ServFail.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14644 Issue Tracking Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
Information

Published : 2018-11-09 07:29

Updated : 2019-10-09 11:35

NVD link : CVE-2018-14644

Mitre link : CVE-2018-14644

Products Affected
No products.
CWE
CWE-20