From 2d950f1ab4643e38b54de7d147a57f28e0b06dd1 Mon Sep 17 00:00:00 2001
From: Jacob Barthelmeh <jacob@wolfssl.com>
Date: Sun, 15 Mar 2020 18:46:11 -0600
Subject: [PATCH] sanity check on IV size

---
 wolfcrypt/src/asn.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 1f323ec5b..58a726fe3 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -10220,6 +10220,8 @@ int wc_EncryptedInfoParse(EncryptedInfo* info, char** pBuffer, size_t bufSz)
             }
             if ((newline != NULL) && (newline > finish)) {
                 info->ivSz = (word32)(newline - (finish + 1));
+                if (info->ivSz >= IV_SZ)
+                    return BUFFER_E;
                 if (XMEMCPY(info->iv, finish + 1, info->ivSz) == NULL)
                     return BUFFER_E;
                 info->set = 1;