This allows for passing a NULL pointer with zero max_len.
Invoking memcpy on NULL is undefined behaviour, even if the size is zero.
https://en.cppreference.com/w/c/string/byte/memcpy
The function can now be queried for the necessary buffer length.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10541)
If FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION is defined then we don't NUL
terminate ASN1_STRING datatypes. This shouldn't be necessary but we add it
any for safety in normal builds.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: David Benjamin <davidben@google.com>
ASN.1 strings may not be NUL terminated. Don't assume they are.
CVE-2021-3712
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: David Benjamin <davidben@google.com>
When creating a signed S/MIME message using SMIME_write_CMS()
if the reading from the bio fails, the state is therefore
still ASN1_STATE_START when BIO_flush() is called by i2d_ASN1_bio_stream().
This results in calling asn1_bio_flush_ex cleanup but will only
reset retry flags as the state is not ASN1_STATE_POST_COPY.
Therefore 48 bytes (Linux x86_64) leaked since the
ndef_prefix_free / ndef_suffix_free callbacks are not executed
and the ndef_aux structure is not freed.
By always calling free function callback in asn1_bio_free() the
memory leak is fixed.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14844)
Fixes coverity 1486070 through 1486077 and 1486079
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15841)
Fixes#5430
Added the configuration file option "date_opt" to the openssl applications ca,
crl and x509.
Added ASN1_TIME_print_ex which supports the new datetime format using the
flag ASN1_DTFLGS_ISO8601
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14384)
This has us switch from the 'structure' "pkcs8" to "PrivateKeyInfo",
which is sensible considering we already have "SubjectPublicKeyInfo".
We also add "EncryptedPrivateKeyInfo", and use it for a special decoder
that detects and decrypts an EncryptedPrivateKeyInfo structured DER
blob into a PrivateKeyInfo structured DER blob and passes that on to
the next decoder implementation.
The result of this change is that PKCS#8 decryption should only happen
once per decoding instead of once for every expected key type.
Furthermore, this new decoder implementation sets the data type to the
OID of the algorithmIdentifier field, thus reducing how many decoder
implementations are tentativaly run further down the call chain.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15498)
The function pem_read_bio_key_legacy() is a fallback route if we
failed to load a key via a provider. We should be using the legacy
specific d2i functions to force legacy otherwise we end up using a
provider anyway
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15504)
Some ASN.1 objects have an embedded libctx/propq. If they have one we
give the ASN.1 code the ability to find these values and use them where
needed. This is used for OSSL_CMP_MSG_dup() and X509_dup().
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15591)
Make sure we pass libctx/propq down to all the layers so that objects that
are created during parsing have the right values. Then use this new
capability for PKCS7.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15591)
An ASN.1 object such as an X509 may have embedded objects in it such as
an X509_PUBKEY. If there is a libctx/propq in use then we need to make sure
we pass these down to the constructors of these embedded objects.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15591)
We need to special case RSA-PSS because that uses X509_ALGOR style
parameters and we have no support for this on the provider side at this
stage.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15527)
For functions that exist in 1.1.1 provide a simple aliases via #define.
Fixes#15236
Functions with OSSL_DECODER_, OSSL_ENCODER_, OSSL_STORE_LOADER_,
EVP_KEYEXCH_, EVP_KEM_, EVP_ASYM_CIPHER_, EVP_SIGNATURE_,
EVP_KEYMGMT_, EVP_RAND_, EVP_MAC_, EVP_KDF_, EVP_PKEY_,
EVP_MD_, and EVP_CIPHER_ prefixes are renamed.
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15405)
Remove unused -DCONF_DEBUG and -DBN_CTX_DEBUG.
Rename REF_PRINT to REF_DEBUG for consistency, and add a new
tracing category and use it for printing reference counts.
Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG
Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to
be set also.
Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency.
Fixes#15357
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15353)
The new names are ossl_err_load_xxx_strings.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15446)
i2d_provided() - which is the internal provider data function for
i2d_KeyParams(), i2d_PrivateKey(), i2d_PublicKey() - didn't treat the
returned length from OSSL_ENCODER_to_data() quite as well as it should
have. A simple added flag that records the state of |*pp| before
calling OSSL_ENCODER_to_data() fixes the problem.
Fixes#14655
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/15277)
add a length check to the return value of function i2d_ASN1_TYPE. Return an error instead of trying to malloc a negative number.
CLA: trivial
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14828)
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14877)
Use the do {} while (0) construct around macros whose bodies are complete
statements (including one that has internal control flow!). This is
safer and avoids any risk of misinterpretation if the macro is used in
an unexpected context.
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15143)
ASN1_put_object() was preceded by the nonsensical comment:
/*
* class 0 is constructed constructed == 2 for indefinite length constructed
*/
This is the result of concatenating two sentences in 0f113f3ee4 by
automated reformatting. The first sentence, "class 0 is constructed",
goes back to d02b48c63a, the import of SSLeay 0.8.1b. Even in that
context, it made little sense; class 0 means "universal", not
constructed, and there is no special significance to class 0 in this
function in any case.
Therefore I have simply removed that first sentence.
CLA: trivial
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/14998)
The 'sn' and 'ln' strings may be dynamically allocated, and the
ASN1_OBJECT flags have a bit set to say this. If an ASN1_OBJECT with
such strings is passed to d2i_ASN1_OBJECT() for reuse, the strings
must be freed, or there is a memory leak.
Fixes#14667
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/14938)
(cherry picked from commit 65b88a7592)
Add a "where did this EVP_{CIPHER,MD} come from" flag: global, via fetch,
or via EVP_{CIPHER,MD}_meth_new. Update EVP_{CIPHER,MD}_free to handle all
three origins. The flag is deliberately right before some function pointers,
so that compile-time failures (int/pointer) will occur, as opposed to
taking a bit in the existing "flags" field. The "global variable" flag
is non-zero, so the default case of using OPENSSL_zalloc (for provider
ciphers), will do the right thing. Ref-counting is a no-op for
Make up_ref no-op for global MD and CIPHER objects
Deprecate EVP_MD_CTX_md(). Added EVP_MD_CTX_get0_md() (same semantics as
the deprecated function) and EVP_MD_CTX_get1_md(). Likewise, deprecate
EVP_CIPHER_CTX_cipher() in favor of EVP_CIPHER_CTX_get0_cipher(), and add
EVP_CIPHER_CTX_get1_CIPHER().
Refactor EVP_MD_free() and EVP_MD_meth_free() to call new common
evp_md_free_int() function.
Refactor EVP_CIPHER_free() and EVP_CIPHER_meth_free() to call new common
evp_cipher_free_int() function.
Also change some flags tests to explicit test == or != zero. E.g.,
if (flags & x) --> if ((flags & x) != 0)
if (!(flags & x)) --> if ((flags & x) == 0)
Only done for those lines where "get0_cipher" calls were made.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14193)
clean a few style nits.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14806)
