The branch master has been updated
via 55833a8de70589a5000044b6291e190f5a3826ae (commit)
from 4fea7005c3d08ed0d575bdea5082b7b0ce355237 (commit)
- Log -----------------------------------------------------------------
commit 55833a8de70589a5000044b6291e190f5a3826ae
Author: Mansour Ahmadi <m.ahm...@northeastern.edu>
Date: Tue Dec 11 15:48:08 2018 -0500
add missing check for BN_mod_inverse
Fixes #7650
Reviewed-by: Kurt Roeckx <k...@roeckx.be>
Reviewed-by: Matt Caswell <m...@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7876)
-----------------------------------------------------------------------
Summary of changes:
crypto/rsa/rsa_x931g.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/crypto/rsa/rsa_x931g.c b/crypto/rsa/rsa_x931g.c
index bc03875..1601777 100644
--- a/crypto/rsa/rsa_x931g.c
+++ b/crypto/rsa/rsa_x931g.c
@@ -128,6 +128,8 @@ int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2,
BIGNUM *q1,
/* calculate inverse of q mod p */
rsa->iqmp = BN_mod_inverse(NULL, rsa->q, rsa->p, ctx2);
+ if (rsa->iqmp == NULL)
+ goto err;
ret = 1;
err:
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