Resource exhaustion in Knot-Dns Knot Dns

CVE-2016-6171

Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.028 (85.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-6171?
CVE-2016-6171 is a high-severity vulnerability in Knot-Dns Knot Dns, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2017-02-09.
How severe is CVE-2016-6171?
High severity. CVSS v3 base score is 8.6 out of 10.