National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-14644 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.9 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score: 5.3 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
4.0.0
Up to (including)
4.1.4


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-14644
NVD Published Date:
11/09/2018
NVD Last Modified:
10/09/2019