From 8402cd5f75f8c2f60d8bd39775b24b03dd8b3b38 Mon Sep 17 00:00:00 2001
From: Shane Lontis <shane.lontis@oracle.com>
Date: Thu, 21 Mar 2019 20:09:02 +1000
Subject: added code to validate EC named curve parameters

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8555)
---
 crypto/ec/ec_mult.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'crypto/ec/ec_mult.c')

diff --git a/crypto/ec/ec_mult.c b/crypto/ec/ec_mult.c
index 755d64400a..76dc524ba9 100644
--- a/crypto/ec/ec_mult.c
+++ b/crypto/ec/ec_mult.c
@@ -156,7 +156,7 @@ int ec_scalar_mul_ladder(const EC_GROUP *group, EC_POINT *r,
         ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_UNKNOWN_ORDER);
         return 0;
     }
-    if (BN_is_zero(group->cofactor)) {
+    if (BN_is_zero(group->cofactor) || BN_is_zero(group->cofactor)) {
         ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_UNKNOWN_COFACTOR);
         return 0;
     }
-- 
cgit v1.2.3