From 418ea234ae31ed9e9d9c60994d0c99022fc38a54 Mon Sep 17 00:00:00 2001
From: Philippe Antoine <contact@catenacyber.fr>
Date: Mon, 3 Feb 2020 22:38:31 +0100
Subject: Adds missing checks

Found by fuzzing
---
 src/lib/protocols/telnet.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/lib/protocols')

diff --git a/src/lib/protocols/telnet.c b/src/lib/protocols/telnet.c
index 0848ef467..dfccd904e 100644
--- a/src/lib/protocols/telnet.c
+++ b/src/lib/protocols/telnet.c
@@ -41,6 +41,8 @@ static int search_telnet_again(struct ndpi_detection_module_struct *ndpi_struct,
   printf("==> %s() [%s][direction: %u]\n", __FUNCTION__, packet->payload, packet->packet_direction);
 #endif
   
+  if (packet->payload == NULL)
+    return(1);
   if(packet->payload[0] == 0xFF)
     return(1);
 
-- 
cgit v1.2.3