{"id":"CVE-2016-6171","details":"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.","modified":"2026-03-15T22:09:28.854792Z","published":"2017-02-09T15:59:01.190Z","references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2016/07/06/3"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2016/07/06/4"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/91678"},{"type":"ADVISORY","url":"https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS"},{"type":"ADVISORY","url":"https://gitlab.labs.nic.cz/labs/knot/issues/464"},{"type":"FIX","url":"https://github.com/sischkg/xfer-limit/blob/master/README.md"},{"type":"ARTICLE","url":"https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6171.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"2.3.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"}]}