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Fencer Intel
medium 4.3

CVE-2020-17482 json

An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records i…

published 6y ago modified 4mo ago also EUVD-2020-9432

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory.

Patch / fix

  • powerdns authoritative 4.3.1
  • pdns Debian 14, Debian 13, Debian 12 4.3.1-1

debian advisories DEBIAN-CVE-2020-17482

  • pdns Ubuntu Pro 16.04 LTS 4.0.0~alpha2-3ubuntu0.1~esm1
  • pdns Ubuntu Pro 18.04 LTS 4.1.1-1ubuntu0.1~esm1
  • pdns Ubuntu Pro 20.04 LTS 4.2.1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2020-17482

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • pdns OpenStack Cloud 9 4.1.8-3.6.1
  • pdns OpenStack Cloud 8, HPE Helion OpenStack 8 4.1.2-3.9.1

suse advisories SUSE-SU-2020:2785-1SUSE-SU-2020:2718-1

  • pdns openSUSE Tumbleweed 4.5.1-1.5
  • pdns Package Hub 15 SP2, Package Hub 15 SP1, Package Hub 12 SP1 +2 more 4.3.1-bp152.2.5.1

opensuse advisories openSUSE-SU-2024:11156-1openSUSE-SU-2020:1556-1

  • pdns Alpine 3.10, Alpine 3.9 4.1.14-r0
  • pdns Alpine 3.12, Alpine 3.11 4.2.3-r0
  • pdns Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 4.3.1-r0

alpine advisories ALPINE-CVE-2020-17482

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2020-17482 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-17482 updated cvss 4.3

pdns: leaking uninitialised memory through crafted zone records

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.59% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Classification

Weakness
  • CWE-908 Use of Uninitialized Resource

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.