CVE-2019-3871

MEDIUM
6.5
CVSS Score
Published: March 21, 2019 at 08:42 PM UTC
Updated: June 17, 2026 at 02:35 AM UTC
3 products affected across 2 vendorsFedoraAuthoritative ServerAuthoritative

Using pdns by The PowerDNS Project?

Get instant alerts when new vulnerabilities affect pdns - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.5
Exploit prediction
EPSS 13%

Description

A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7. An insufficient validation of data coming from the user when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend, allowing a remote user to cause a denial of service by making the server connect to an invalid endpoint, or possibly information disclosure by making the server connect to an internal endpoint and somehow extracting meaningful information about the response

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.0.74.1.0 ≤ v < 4.1.7
Affected range stops below 4.0.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.7, so it looks safe — our inference, not a vendor statement

CVSS

6.5MEDIUMredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card