diff -burN pgpool-II-3.0.1/pool_auth.c pgpool-II-3.0.1.new/pool_auth.c
--- pgpool-II-3.0.1/pool_auth.c	2010-09-28 10:00:48.000000000 +0200
+++ pgpool-II-3.0.1.new/pool_auth.c	2011-01-24 14:12:00.646197002 +0100
@@ -987,7 +987,7 @@
 
 		backend->auth_kind = 5;
 		backend->pwd_size = ntohl(size) - 4;
-		memcpy(backend->password, password, backend->pwd_size);
+		memcpy(backend->password, password, sizeof(password));
 		memcpy(backend->salt, salt, sizeof(salt));
 	}
 	return kind;