From 56af895c680953a333b46d5569b4da7e623751aa Mon Sep 17 00:00:00 2001
From: toddouska <todd@wolfssl.com>
Date: Wed, 14 Oct 2015 10:48:37 -0700
Subject: [PATCH] make sure pubkey in ecc private key has size

---
 wolfcrypt/src/asn.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 0b41d5d58..5eeae21d4 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -8100,6 +8100,10 @@ int wc_EccPrivateKeyDecode(const byte* input, word32* inOutIdx, ecc_key* key,
             else if (GetLength(input, inOutIdx, &length, inSz) < 0) {
                 ret = ASN_PARSE_E;
             }
+            else if (length <= 0) {
+                /* pubkey needs some size */
+                ret = ASN_INPUT_E;
+            }
             else {
                 b = input[*inOutIdx];
                 *inOutIdx += 1;