diff options
Diffstat (limited to 'crypto/pem/pem_info.c')
-rw-r--r-- | crypto/pem/pem_info.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/crypto/pem/pem_info.c b/crypto/pem/pem_info.c index dd493c8509..017dd0fe58 100644 --- a/crypto/pem/pem_info.c +++ b/crypto/pem/pem_info.c @@ -256,7 +256,13 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, if (enc != NULL) { objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc)); - if (objstr == NULL) { + if (objstr == NULL + /* + * Check "Proc-Type: 4,Encrypted\nDEK-Info: objstr,hex-iv\n" + * fits into buf + */ + || (strlen(objstr) + 23 + 2 * EVP_CIPHER_iv_length(enc) + 13) + > sizeof(buf)) { PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, PEM_R_UNSUPPORTED_CIPHER); goto err; } @@ -291,10 +297,7 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, goto err; } - /* create the right magic header stuff */ - OPENSSL_assert(strlen(objstr) + 23 - + 2 * EVP_CIPHER_iv_length(enc) + 13 <= - sizeof buf); + /* Create the right magic header stuff */ buf[0] = '\0'; PEM_proc_type(buf, PEM_TYPE_ENCRYPTED); PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc), |