diff options
| author | Jung-uk Kim <jkim@FreeBSD.org> | 2019-05-28 20:08:17 +0000 |
|---|---|---|
| committer | Jung-uk Kim <jkim@FreeBSD.org> | 2019-05-28 20:08:17 +0000 |
| commit | 375b8e6770f750fb915859470f6f1fe43f35cc48 (patch) | |
| tree | 5db6744924edfc112439ad2366f52f246baa21d1 /crypto/dsa/dsa_ossl.c | |
| parent | 851f7386fd78b9787f4f6669ad271886a2a003f1 (diff) | |
Diffstat (limited to 'crypto/dsa/dsa_ossl.c')
| -rw-r--r-- | crypto/dsa/dsa_ossl.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/crypto/dsa/dsa_ossl.c b/crypto/dsa/dsa_ossl.c index 7a0b0874c54e0..cefda5a450fa5 100644 --- a/crypto/dsa/dsa_ossl.c +++ b/crypto/dsa/dsa_ossl.c @@ -1,5 +1,5 @@ /* - * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1995-2019 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 @@ -190,6 +190,12 @@ static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, return 0; } + /* Reject obviously invalid parameters */ + if (BN_is_zero(dsa->p) || BN_is_zero(dsa->q) || BN_is_zero(dsa->g)) { + DSAerr(DSA_F_DSA_SIGN_SETUP, DSA_R_INVALID_PARAMETERS); + return 0; + } + k = BN_new(); l = BN_new(); if (k == NULL || l == NULL) |