From: Dr. Stephen Henson <steve@openssl.org>
Date: Sun, 3 May 2015 23:59:48 +0000 (+0100)
Subject: Return an error in ASN1_TYPE_unpack_sequence if argument is NULL
X-Git-Tag: OpenSSL_1_1_0-pre1~1206
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=b8cba00807e6dd766b7bcdd3656e250e05dbe56f;p=oweals%2Fopenssl.git

Return an error in ASN1_TYPE_unpack_sequence if argument is NULL

Thanks to Brian Carpenter for reporting this issue.

Reviewed-by: Richard Levitte <levitte@openssl.org>
---

diff --git a/crypto/asn1/a_type.c b/crypto/asn1/a_type.c
index 864ebec0f9..283baaaeae 100644
--- a/crypto/asn1/a_type.c
+++ b/crypto/asn1/a_type.c
@@ -179,7 +179,7 @@ ASN1_TYPE *ASN1_TYPE_pack_sequence(const ASN1_ITEM *it, void *s, ASN1_TYPE **t)
 
 void *ASN1_TYPE_unpack_sequence(const ASN1_ITEM *it, const ASN1_TYPE *t)
 {
-    if (t->type != V_ASN1_SEQUENCE || t->value.sequence == NULL)
+    if (t == NULL || t->type != V_ASN1_SEQUENCE || t->value.sequence == NULL)
         return NULL;
     return ASN1_item_unpack(t->value.sequence, it);
 }