release 5.1.1

content/news/en/2020-05-19-knot-resolver-5-1-1.rst

+:title: Knot Resolver 5.1.1 released
+:slug: knot-resolver-5.1.1
+:date: 2020-05-19 11:00
+:lang: en
+
+Security
+--------
+- fix CVE-2020-12667: mitigation for NXNSAttack DNS protocol vulnerability
+
+Bugfixes
+--------
+- control sockets: recognize newline as command boundary