{"action":"Upgrade knot to 2.3.0-1 or later.","affected":[{"fixed":"2.3.0-1","introduced":"0"}],"component":"knot","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.3.0-1"],"id":"tcs_01M5NBNTB3ZE4B7VZ2A9EBWMBP","modified_at":"2026-09-22T07:01:39.979427314Z","published_at":"2017-02-09T15:59:01.190Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-6171","https://security-tracker.debian.org/tracker/CVE-2016-6171"],"severity":{"label":"high","score":8.6},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-6171#Debian:14/knot","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-6171"}],"summary":"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."}