CVE-2019-3871
pdns - security update
8.8
HIGH
CVSS 3.1
EPSS 0.03%
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
How to fix CVE-2019-3871
To remediate CVE-2019-3871, upgrade the affected package to a fixed version below.
- —upgrade to 4.1.6-2 or later
- —upgrade to 3.4.1-4+deb8u9 or later
- —upgrade to 4.0.3-1+deb9u4 or later
Is CVE-2019-3871 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 4.1.6-2
- from 0, < 3.4.1-4+deb8u9
- from 0, < 4.0.3-1+deb9u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |