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CVE-2019-3871

Status Candidate

Overview

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

Related Files

Debian Security Advisory 4424-1
Posted Apr 5, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4424-1 - Adam Dobrawy, Frederico Silva and Gregory Brzeski from HyperOne.com discovered that pdns, an authoritative DNS server, did not properly validate user-supplied data when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend. This would allow a remote user to cause either a denial-of-service, or information disclosure.

tags | advisory, remote, web, info disclosure
systems | linux, debian
advisories | CVE-2019-3871
SHA-256 | a6c78fc67efbb442cf102ef8de19a438f5068b2d1c71e0ad435ed20a619c7706
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