Resource exhaustion in Powerdns Authoritative_server

CVE-2016-6172

PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.038 (88.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-6172?
CVE-2016-6172 is a medium-severity vulnerability in Powerdns Authoritative_server, classified under Uncontrolled Resource Consumption. CVSS score: 6.8/10. Published 2016-09-26.
How severe is CVE-2016-6172?
Medium severity. CVSS v3 base score is 6.8 out of 10.