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diff -up openssl-1.0.2k/ssl/s3_srvr.c.long-hello openssl-1.0.2k/ssl/s3_srvr.c
--- openssl-1.0.2k/ssl/s3_srvr.c.long-hello	2017-03-09 17:59:26.000000000 +0100
+++ openssl-1.0.2k/ssl/s3_srvr.c	2017-03-30 09:11:35.639338753 +0200
@@ -899,6 +899,23 @@ int ssl3_send_hello_request(SSL *s)
     return ssl_do_write(s);
 }
 
+/*
+ * Maximum size (excluding the Handshake header) of a ClientHello message,
+ * calculated as follows:
+ *
+ *  2 + # client_version
+ *  32 + # only valid length for random
+ *  1 + # length of session_id
+ *  32 + # maximum size for session_id
+ *  2 + # length of cipher suites
+ *  2^16-2 + # maximum length of cipher suites array
+ *  1 + # length of compression_methods
+ *  2^8-1 + # maximum length of compression methods
+ *  2 + # length of extensions
+ *  2^16-1 # maximum length of extensions
+ */
+#define CLIENT_HELLO_MAX_LENGTH         131396
+
 int ssl3_get_client_hello(SSL *s)
 {
     int i, j, ok, al = SSL_AD_INTERNAL_ERROR, ret = -1, cookie_valid = 0;
@@ -930,7 +947,7 @@ int ssl3_get_client_hello(SSL *s)
                                    SSL3_ST_SR_CLNT_HELLO_B,
                                    SSL3_ST_SR_CLNT_HELLO_C,
                                    SSL3_MT_CLIENT_HELLO,
-                                   SSL3_RT_MAX_PLAIN_LENGTH, &ok);
+                                   CLIENT_HELLO_MAX_LENGTH, &ok);
 
     if (!ok)
         return ((int)n);