From d62526f9ed0d504c928a3861b4838f7029bc0632 Mon Sep 17 00:00:00 2001
From: emanuele-f <faranda@ntop.org>
Date: Wed, 4 Dec 2019 13:06:05 +0100
Subject: Fix invalid reads and add valgrind test

---
 src/lib/protocols/ssh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/lib/protocols/ssh.c')

diff --git a/src/lib/protocols/ssh.c b/src/lib/protocols/ssh.c
index 5bdf78959..068d2c345 100644
--- a/src/lib/protocols/ssh.c
+++ b/src/lib/protocols/ssh.c
@@ -296,7 +296,7 @@ static void ndpi_search_ssh_tcp(struct ndpi_detection_module_struct *ndpi_struct
       flow->l4.tcp.ssh_stage = 3;
       return;
     }
-  } else {
+  } else if(packet->payload_packet_len > 5) {
     u_int8_t msgcode = *(packet->payload + 5);
     ndpi_MD5_CTX ctx;
 
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