1 files changed, 11 insertions, 1 deletions

diff --git a/src/lib/libcrypto/asn1/a_enum.c b/src/lib/libcrypto/asn1/a_enum.c
index 8a315fa371..ad8f0ffd1a 100644
--- a/src/lib/libcrypto/asn1/a_enum.c
+++ b/src/lib/libcrypto/asn1/a_enum.c
@@ -151,7 +151,17 @@ ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai)
         else ret->type=V_ASN1_ENUMERATED;
         j=BN_num_bits(bn);
         len=((j == 0)?0:((j/8)+1));
-        ret->data=(unsigned char *)OPENSSL_malloc(len+4);
+        if (ret->length < len+4)
+                {
+                unsigned char *new_data=OPENSSL_realloc(ret->data, len+4);
+                if (!new_data)
+                        {
+                        ASN1err(ASN1_F_BN_TO_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
+                        goto err;
+                        }
+                ret->data=new_data;
+                }
+
         ret->length=BN_bn2bin(bn,ret->data);
         return(ret);
 err: