diff options
Diffstat (limited to 'crypto/bn/bn_mpi.c')
| -rw-r--r-- | crypto/bn/bn_mpi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/crypto/bn/bn_mpi.c b/crypto/bn/bn_mpi.c index bdbe822415c7..0902da5d076e 100644 --- a/crypto/bn/bn_mpi.c +++ b/crypto/bn/bn_mpi.c @@ -1,5 +1,5 @@ /* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -45,7 +45,7 @@ BIGNUM *BN_mpi2bn(const unsigned char *d, int n, BIGNUM *ain) int neg = 0; BIGNUM *a = NULL; - if (n < 4) { + if (n < 4 || (d[0] & 0x80) != 0) { BNerr(BN_F_BN_MPI2BN, BN_R_INVALID_LENGTH); return NULL; } |