CVE-2019-3871 Information

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

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html http://www.openwall.com/lists/oss-security/2019/03/18/4 http://www.securityfocus.com/bid/107491 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871 https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-03.html https://lists.debian.org/debian-lts-announce/2019/03/msg00039.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/ https://seclists.org/bugtraq/2019/Apr/8 https://www.debian.org/security/2019/dsa-4424

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8