CVE-2019-3871

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

• CWE-20
• CWE-20

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html
• http://www.openwall.com/lists/oss-security/2019/03/18/4Exploit, Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/107491Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871Exploit, Issue Tracking, Patch, Third Party Advisory
• https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-03.htmlVendor Advisory
• https://lists.debian.org/debian-lts-announce/2019/03/msg00039.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/
• https://seclists.org/bugtraq/2019/Apr/8
• https://www.debian.org/security/2019/dsa-4424
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html
• http://www.openwall.com/lists/oss-security/2019/03/18/4Exploit, Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/107491Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871Exploit, Issue Tracking, Patch, Third Party Advisory
• https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-03.htmlVendor Advisory
• https://lists.debian.org/debian-lts-announce/2019/03/msg00039.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/
• https://seclists.org/bugtraq/2019/Apr/8
• https://www.debian.org/security/2019/dsa-4424

Published

Mar 21, 2019

Last Modified

Jun 17, 2026

Status

Modified

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