From 0c21d76ce321fdb0494995263d989c3ac60f26a9 Mon Sep 17 00:00:00 2001
From: toddouska <todd@wolfssl.com>
Date: Thu, 8 Sep 2016 12:06:22 -0700
Subject: [PATCH] detect client not sending any compression types

---
 src/internal.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/internal.c b/src/internal.c
index 80cb9f9ef..d134b9aaf 100755
--- a/src/internal.c
+++ b/src/internal.c
@@ -18032,6 +18032,11 @@ int DoSessionTicket(WOLFSSL* ssl, const byte* input, word32* inOutIdx,
         if ((i - begin) + b > helloSz)
             return BUFFER_ERROR;
 
+        if (b == 0) {
+            WOLFSSL_MSG("No compression types in list");
+            return COMPRESSION_ERROR;
+        }
+
 #ifdef WOLFSSL_DTLS
         if (IsDtlsNotSctpMode(ssl)) {
             byte newCookie[MAX_COOKIE_LEN];