Vulnerability Details : 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
Vulnerability category: Input validationDenial of serviceInformation leak
Products affected by CVE-2019-3871
- cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-3871
1.65%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-3871
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L |
3.9
|
2.5
|
Red Hat, Inc. |
CWE ids for CVE-2019-3871
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2019-3871
-
https://www.debian.org/security/2019/dsa-4424
Debian -- Security Information -- DSA-4424-1 pdns
-
http://www.openwall.com/lists/oss-security/2019/03/18/4
oss-security - PowerDNS Security Advisory 2019-03Exploit;Mailing List;Patch;Third Party Advisory
-
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-03.html
PowerDNS Security Advisory 2019-03: Insufficient validation in the HTTP remote backend — PowerDNS Authoritative Server documentationVendor Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871
1689013 – (CVE-2019-3871) CVE-2019-3871 pdns: insufficient validation of data when building a HTTP request from a DNS queryExploit;Issue Tracking;Patch;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html
[security-announce] openSUSE-SU-2019:1128-1: important: Security update
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/
[SECURITY] Fedora 28 Update: pdns-4.1.7-1.fc28 - package-announce - Fedora Mailing-ListsMailing List;Release Notes;Third Party Advisory
-
https://seclists.org/bugtraq/2019/Apr/8
Bugtraq: [SECURITY] [DSA 4424-1] pdns security update
-
http://www.securityfocus.com/bid/107491
PowerDNS Authoritative Server CVE-2019-3871 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/
[SECURITY] Fedora 29 Update: pdns-4.1.7-1.fc29 - package-announce - Fedora Mailing-ListsThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/03/msg00039.html
[SECURITY] [DLA 1737-1] pdns security update
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