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.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6171.json"
[ { "events": [ { "introduced": "0" }, { "fixed": "2.3.0" } ] } ]