diff options
Diffstat (limited to 'crypto/cms/cms_pwri.c')
| -rw-r--r-- | crypto/cms/cms_pwri.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/crypto/cms/cms_pwri.c b/crypto/cms/cms_pwri.c index 46313f2bfe2c..2f365b1a704c 100644 --- a/crypto/cms/cms_pwri.c +++ b/crypto/cms/cms_pwri.c @@ -1,5 +1,5 @@ /* - * Copyright 2009-2025 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2009-2026 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -189,14 +189,18 @@ static int kek_unwrap_key(unsigned char *out, size_t *outlen, const unsigned char *in, size_t inlen, EVP_CIPHER_CTX *ctx) { - size_t blocklen = EVP_CIPHER_CTX_get_block_size(ctx); + int blocklen = EVP_CIPHER_CTX_get_block_size(ctx); unsigned char *tmp; int outl, rv = 0; - if (inlen < 2 * blocklen) { + + if (blocklen < 4) + return 0; + + if (inlen < 2 * (size_t)blocklen) { /* too small */ return 0; } - if (inlen % blocklen) { + if (inlen > INT_MAX || inlen % blocklen) { /* Invalid size */ return 0; } @@ -350,6 +354,11 @@ int ossl_cms_RecipientInfo_pwri_crypt(const CMS_ContentInfo *cms, /* Finish password based key derivation to setup key in "ctx" */ + if (algtmp == NULL) { + ERR_raise_data(ERR_LIB_CMS, CMS_R_INVALID_KEY_ENCRYPTION_PARAMETER, + "Missing KeyDerivationAlgorithm"); + goto err; + } if (!EVP_PBE_CipherInit_ex(algtmp->algorithm, (char *)pwri->pass, (int)pwri->passlen, algtmp->parameter, kekctx, en_de, |