diff -Naur nagios-4.3.1/base/nagios.c nagios-4.3.1-CVE-2017-12847/base/nagios.c
--- nagios-4.3.1/base/nagios.c	2017-02-23 21:00:40.000000000 +0100
+++ nagios-4.3.1-CVE-2017-12847/base/nagios.c	2017-11-19 15:28:45.898806034 +0100
@@ -592,6 +592,22 @@
 			program_start = time(NULL);
 			my_free(mac->x[MACRO_PROCESSSTARTTIME]);
 			asprintf(&mac->x[MACRO_PROCESSSTARTTIME], "%llu", (unsigned long long)program_start);
+			
+			/* enter daemon mode (unless we're restarting...) */
+			if(daemon_mode == TRUE && sigrestart == FALSE) {
+
+				result = daemon_init();
+
+				/* we had an error daemonizing, so bail... */
+				if(result == ERROR) {
+					logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR, TRUE, "Bailing out due to failure to daemonize. (PID=%d)", (int)getpid());
+					cleanup();
+					exit(EXIT_FAILURE);
+					}
+
+				/* get new PID */
+				nagios_pid = (int)getpid();
+				}
 
 			/* drop privileges */
 			if(drop_privileges(nagios_user, nagios_group) == ERROR) {
@@ -612,21 +628,6 @@
 				/* error has already been logged */
 				exit(EXIT_FAILURE);
 				}
-			/* enter daemon mode (unless we're restarting...) */
-			if(daemon_mode == TRUE && sigrestart == FALSE) {
-
-				result = daemon_init();
-
-				/* we had an error daemonizing, so bail... */
-				if(result == ERROR) {
-					logit(NSLOG_PROCESS_INFO | NSLOG_RUNTIME_ERROR, TRUE, "Bailing out due to failure to daemonize. (PID=%d)", (int)getpid());
-					cleanup();
-					exit(EXIT_FAILURE);
-					}
-
-				/* get new PID */
-				nagios_pid = (int)getpid();
-				}
 
 			/* this must be logged after we read config data, as user may have changed location of main log file */
 			logit(NSLOG_PROCESS_INFO, TRUE, "Nagios %s starting... (PID=%d)\n", PROGRAM_VERSION, (int)getpid());