Add release note for GL #3998

diff --git a/doc/notes/notes-9.19.12.rst b/doc/notes/notes-9.19.12.rst
index bda508b1774d65ed578fa93f3a39e236b17a2fb8..bacb7d301cf69826430f7dfe9e9874b0a4c4f889 100644 (file)
--- a/doc/notes/notes-9.19.12.rst
+++ b/doc/notes/notes-9.19.12.rst
@@ -15,7 +15,10 @@ Notes for BIND 9.19.12
 Security Fixes
 ~~~~~~~~~~~~~~
 
-- None.
+- An error in DNS message processing introduced in development version
+  9.19.11 could cause BIND and its utilities to crash if the maximum
+  permissible number of DNS labels were present. This has been fixed.
+  :gl:`#3998`
 
 New Features
 ~~~~~~~~~~~~