diff options
Diffstat (limited to 'crypto/pkcs7/pk7_doit.c')
| -rw-r--r-- | crypto/pkcs7/pk7_doit.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/crypto/pkcs7/pk7_doit.c b/crypto/pkcs7/pk7_doit.c index ee08e602a1eb9..f63fbc50ea60e 100644 --- a/crypto/pkcs7/pk7_doit.c +++ b/crypto/pkcs7/pk7_doit.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 @@ -137,7 +137,8 @@ static int pkcs7_encode_rinfo(PKCS7_RECIP_INFO *ri, } static int pkcs7_decrypt_rinfo(unsigned char **pek, int *peklen, - PKCS7_RECIP_INFO *ri, EVP_PKEY *pkey) + PKCS7_RECIP_INFO *ri, EVP_PKEY *pkey, + size_t fixlen) { EVP_PKEY_CTX *pctx = NULL; unsigned char *ek = NULL; @@ -170,7 +171,9 @@ static int pkcs7_decrypt_rinfo(unsigned char **pek, int *peklen, } if (EVP_PKEY_decrypt(pctx, ek, &eklen, - ri->enc_key->data, ri->enc_key->length) <= 0) { + ri->enc_key->data, ri->enc_key->length) <= 0 + || eklen == 0 + || (fixlen != 0 && eklen != fixlen)) { ret = 0; PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, ERR_R_EVP_LIB); goto err; @@ -499,13 +502,14 @@ BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert) for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rsk); i++) { ri = sk_PKCS7_RECIP_INFO_value(rsk, i); - if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey) < 0) + if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey, + EVP_CIPHER_key_length(evp_cipher)) < 0) goto err; ERR_clear_error(); } } else { /* Only exit on fatal errors, not decrypt failure */ - if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey) < 0) + if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey, 0) < 0) goto err; ERR_clear_error(); } |