git: b6c1fdcdf503 - main - OpenSSL: Merge OpenSSL 1.1.1k
Jung-uk Kim
jkim at FreeBSD.org
Thu Mar 25 15:47:38 UTC 2021
The branch main has been updated by jkim:
URL: https://cgit.FreeBSD.org/src/commit/?id=b6c1fdcdf5033d20c61cc77d66f58f31cc65e2ba
commit b6c1fdcdf5033d20c61cc77d66f58f31cc65e2ba
Merge: f073ab8712a0 94fa08a4bcdf
Author: Jung-uk Kim <jkim at FreeBSD.org>
AuthorDate: 2021-03-25 15:45:19 +0000
Commit: Jung-uk Kim <jkim at FreeBSD.org>
CommitDate: 2021-03-25 15:45:19 +0000
OpenSSL: Merge OpenSSL 1.1.1k
Merge commit '94fa08a4bcdfbb3434b025d67d014af3b18e5380'
crypto/openssl/CHANGES | 44 ++++++++++++++++++++++++++++
crypto/openssl/NEWS | 8 +++++
crypto/openssl/README | 4 +--
crypto/openssl/apps/s_cb.c | 5 ++--
crypto/openssl/apps/s_time.c | 5 ++--
crypto/openssl/crypto/asn1/asn1_par.c | 3 +-
crypto/openssl/crypto/asn1/bio_ndef.c | 4 ++-
crypto/openssl/crypto/engine/eng_devcrypto.c | 17 +++++++++--
crypto/openssl/crypto/evp/evp_enc.c | 2 +-
crypto/openssl/crypto/modes/cbc128.c | 8 +++--
crypto/openssl/crypto/modes/gcm128.c | 6 ++--
crypto/openssl/crypto/o_time.c | 6 ++--
crypto/openssl/crypto/rand/rand_lib.c | 8 +++--
crypto/openssl/crypto/rsa/rsa_ssl.c | 2 +-
crypto/openssl/crypto/x509/x509_vfy.c | 12 +++++---
crypto/openssl/include/openssl/opensslv.h | 6 ++--
crypto/openssl/ssl/s3_lib.c | 7 +++--
crypto/openssl/ssl/ssl_lib.c | 16 +++++++---
crypto/openssl/ssl/statem/extensions.c | 4 +++
crypto/openssl/ssl/statem/extensions_clnt.c | 16 ++++++++--
crypto/openssl/ssl/statem/statem_clnt.c | 8 ++++-
crypto/openssl/ssl/statem/statem_srvr.c | 19 +++++++++---
22 files changed, 166 insertions(+), 44 deletions(-)
diff --cc crypto/openssl/CHANGES
index a4a63a9bea22,000000000000..7f8057bb6f0a
mode 100644,000000..100644
--- a/crypto/openssl/CHANGES
+++ b/crypto/openssl/CHANGES
@@@ -1,13566 -1,0 +1,13610 @@@
+
+ OpenSSL CHANGES
+ _______________
+
+ This is a high-level summary of the most important changes.
+ For a full list of changes, see the git commit log; for example,
+ https://github.com/openssl/openssl/commits/ and pick the appropriate
+ release branch.
+
++ Changes between 1.1.1j and 1.1.1k [25 Mar 2021]
++
++ *) Fixed a problem with verifying a certificate chain when using the
++ X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks
++ of the certificates present in a certificate chain. It is not set by
++ default.
++
++ Starting from OpenSSL version 1.1.1h a check to disallow certificates in
++ the chain that have explicitly encoded elliptic curve parameters was added
++ as an additional strict check.
++
++ An error in the implementation of this check meant that the result of a
++ previous check to confirm that certificates in the chain are valid CA
++ certificates was overwritten. This effectively bypasses the check
++ that non-CA certificates must not be able to issue other certificates.
++
++ If a "purpose" has been configured then there is a subsequent opportunity
++ for checks that the certificate is a valid CA. All of the named "purpose"
++ values implemented in libcrypto perform this check. Therefore, where
++ a purpose is set the certificate chain will still be rejected even when the
++ strict flag has been used. A purpose is set by default in libssl client and
++ server certificate verification routines, but it can be overridden or
++ removed by an application.
++
++ In order to be affected, an application must explicitly set the
++ X509_V_FLAG_X509_STRICT verification flag and either not set a purpose
++ for the certificate verification or, in the case of TLS client or server
++ applications, override the default purpose.
++ (CVE-2021-3450)
++ [Tomáš Mráz]
++
++ *) Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously
++ crafted renegotiation ClientHello message from a client. If a TLSv1.2
++ renegotiation ClientHello omits the signature_algorithms extension (where
++ it was present in the initial ClientHello), but includes a
++ signature_algorithms_cert extension then a NULL pointer dereference will
++ result, leading to a crash and a denial of service attack.
++
++ A server is only vulnerable if it has TLSv1.2 and renegotiation enabled
++ (which is the default configuration). OpenSSL TLS clients are not impacted
++ by this issue.
++ (CVE-2021-3449)
++ [Peter Kästle and Samuel Sapalski]
++
+ Changes between 1.1.1i and 1.1.1j [16 Feb 2021]
+
+ *) Fixed the X509_issuer_and_serial_hash() function. It attempts to
+ create a unique hash value based on the issuer and serial number data
+ contained within an X509 certificate. However it was failing to correctly
+ handle any errors that may occur while parsing the issuer field (which might
+ occur if the issuer field is maliciously constructed). This may subsequently
+ result in a NULL pointer deref and a crash leading to a potential denial of
+ service attack.
+ (CVE-2021-23841)
+ [Matt Caswell]
+
+ *) Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING
+ padding mode to correctly check for rollback attacks. This is considered a
+ bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is
+ CVE-2021-23839.
+ [Matt Caswell]
+
+ *) Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate
+ functions. Previously they could overflow the output length argument in some
+ cases where the input length is close to the maximum permissable length for
+ an integer on the platform. In such cases the return value from the function
+ call would be 1 (indicating success), but the output length value would be
+ negative. This could cause applications to behave incorrectly or crash.
+ (CVE-2021-23840)
+ [Matt Caswell]
+
+ *) Fixed SRP_Calc_client_key so that it runs in constant time. The previous
+ implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This
+ could be exploited in a side channel attack to recover the password. Since
+ the attack is local host only this is outside of the current OpenSSL
+ threat model and therefore no CVE is assigned.
+
+ Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this
+ issue.
+ [Matt Caswell]
+
+ Changes between 1.1.1h and 1.1.1i [8 Dec 2020]
+
+ *) Fixed NULL pointer deref in the GENERAL_NAME_cmp function
+ This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME.
+ If an attacker can control both items being compared then this could lead
+ to a possible denial of service attack. OpenSSL itself uses the
+ GENERAL_NAME_cmp function for two purposes:
+ 1) Comparing CRL distribution point names between an available CRL and a
+ CRL distribution point embedded in an X509 certificate
+ 2) When verifying that a timestamp response token signer matches the
+ timestamp authority name (exposed via the API functions
+ TS_RESP_verify_response and TS_RESP_verify_token)
+ (CVE-2020-1971)
+ [Matt Caswell]
+
+ *) Add support for Apple Silicon M1 Macs with the darwin64-arm64-cc target.
+ [Stuart Carnie]
+
+ *) The security callback, which can be customised by application code, supports
+ the security operation SSL_SECOP_TMP_DH. This is defined to take an EVP_PKEY
+ in the "other" parameter. In most places this is what is passed. All these
+ places occur server side. However there was one client side call of this
+ security operation and it passed a DH object instead. This is incorrect
+ according to the definition of SSL_SECOP_TMP_DH, and is inconsistent with all
+ of the other locations. Therefore this client side call has been changed to
+ pass an EVP_PKEY instead.
+ [Matt Caswell]
+
+ *) In 1.1.1h, an expired trusted (root) certificate was not anymore rejected
+ when validating a certificate path. This check is restored in 1.1.1i.
+ [David von Oheimb]
+
+ Changes between 1.1.1g and 1.1.1h [22 Sep 2020]
+
+ *) Certificates with explicit curve parameters are now disallowed in
+ verification chains if the X509_V_FLAG_X509_STRICT flag is used.
+ [Tomas Mraz]
+
+ *) The 'MinProtocol' and 'MaxProtocol' configuration commands now silently
+ ignore TLS protocol version bounds when configuring DTLS-based contexts, and
+ conversely, silently ignore DTLS protocol version bounds when configuring
+ TLS-based contexts. The commands can be repeated to set bounds of both
+ types. The same applies with the corresponding "min_protocol" and
+ "max_protocol" command-line switches, in case some application uses both TLS
+ and DTLS.
+
+ SSL_CTX instances that are created for a fixed protocol version (e.g.
+ TLSv1_server_method()) also silently ignore version bounds. Previously
+ attempts to apply bounds to these protocol versions would result in an
+ error. Now only the "version-flexible" SSL_CTX instances are subject to
+ limits in configuration files in command-line options.
+ [Viktor Dukhovni]
+
+ *) Handshake now fails if Extended Master Secret extension is dropped
+ on renegotiation.
+ [Tomas Mraz]
+
+ *) Accidentally, an expired trusted (root) certificate is not anymore rejected
+ when validating a certificate path.
+ [David von Oheimb]
+
+ *) The Oracle Developer Studio compiler will start reporting deprecated APIs
+
+ Changes between 1.1.1f and 1.1.1g [21 Apr 2020]
+
+ *) Fixed segmentation fault in SSL_check_chain()
+ Server or client applications that call the SSL_check_chain() function
+ during or after a TLS 1.3 handshake may crash due to a NULL pointer
+ dereference as a result of incorrect handling of the
+ "signature_algorithms_cert" TLS extension. The crash occurs if an invalid
+ or unrecognised signature algorithm is received from the peer. This could
+ be exploited by a malicious peer in a Denial of Service attack.
+ (CVE-2020-1967)
+ [Benjamin Kaduk]
+
+ *) Added AES consttime code for no-asm configurations
+ an optional constant time support for AES was added
+ when building openssl for no-asm.
+ Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME
+ Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME
+ At this time this feature is by default disabled.
+ It will be enabled by default in 3.0.
+ [Bernd Edlinger]
+
+ Changes between 1.1.1e and 1.1.1f [31 Mar 2020]
+
+ *) Revert the change of EOF detection while reading in libssl to avoid
+ regressions in applications depending on the current way of reporting
+ the EOF. As the existing method is not fully accurate the change to
+ reporting the EOF via SSL_ERROR_SSL is kept on the current development
+ branch and will be present in the 3.0 release.
+ [Tomas Mraz]
+
+ *) Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1
+ when primes for RSA keys are computed.
+ Since we previously always generated primes == 2 (mod 3) for RSA keys,
+ the 2-prime and 3-prime RSA modules were easy to distinguish, since
+ N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting
+ 2-prime vs. 3-prime RSA keys was possible by computing N mod 3.
+ This avoids possible fingerprinting of newly generated RSA modules.
+ [Bernd Edlinger]
+
+ Changes between 1.1.1d and 1.1.1e [17 Mar 2020]
+ *) Properly detect EOF while reading in libssl. Previously if we hit an EOF
+ while reading in libssl then we would report an error back to the
+ application (SSL_ERROR_SYSCALL) but errno would be 0. We now add
+ an error to the stack (which means we instead return SSL_ERROR_SSL) and
+ therefore give a hint as to what went wrong.
+ [Matt Caswell]
+
+ *) Check that ed25519 and ed448 are allowed by the security level. Previously
+ signature algorithms not using an MD were not being checked that they were
+ allowed by the security level.
+ [Kurt Roeckx]
+
+ *) Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername()
+ was not quite right. The behaviour was not consistent between resumption
+ and normal handshakes, and also not quite consistent with historical
+ behaviour. The behaviour in various scenarios has been clarified and
+ it has been updated to make it match historical behaviour as closely as
+ possible.
+ [Matt Caswell]
+
+ *) [VMS only] The header files that the VMS compilers include automatically,
+ __DECC_INCLUDE_PROLOGUE.H and __DECC_INCLUDE_EPILOGUE.H, use pragmas that
+ the C++ compiler doesn't understand. This is a shortcoming in the
+ compiler, but can be worked around with __cplusplus guards.
+
+ C++ applications that use OpenSSL libraries must be compiled using the
+ qualifier '/NAMES=(AS_IS,SHORTENED)' to be able to use all the OpenSSL
+ functions. Otherwise, only functions with symbols of less than 31
+ characters can be used, as the linker will not be able to successfully
+ resolve symbols with longer names.
+ [Richard Levitte]
+
+ *) Corrected the documentation of the return values from the EVP_DigestSign*
+ set of functions. The documentation mentioned negative values for some
+ errors, but this was never the case, so the mention of negative values
+ was removed.
+
+ Code that followed the documentation and thereby check with something
+ like 'EVP_DigestSignInit(...) <= 0' will continue to work undisturbed.
+ [Richard Levitte]
+
+ *) Fixed an an overflow bug in the x64_64 Montgomery squaring procedure
+ used in exponentiation with 512-bit moduli. No EC algorithms are
+ affected. Analysis suggests that attacks against 2-prime RSA1024,
+ 3-prime RSA1536, and DSA1024 as a result of this defect would be very
+ difficult to perform and are not believed likely. Attacks against DH512
+ are considered just feasible. However, for an attack the target would
+ have to re-use the DH512 private key, which is not recommended anyway.
+ Also applications directly using the low level API BN_mod_exp may be
+ affected if they use BN_FLG_CONSTTIME.
+ (CVE-2019-1551)
+ [Andy Polyakov]
+
+ *) Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY.
+ The presence of this system service is determined at run-time.
+ [Richard Levitte]
+
+ *) Added newline escaping functionality to a filename when using openssl dgst.
+ This output format is to replicate the output format found in the '*sum'
+ checksum programs. This aims to preserve backward compatibility.
+ [Matt Eaton, Richard Levitte, and Paul Dale]
+
+ *) Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just
+ the first value.
+ [Jon Spillett]
+
+ Changes between 1.1.1c and 1.1.1d [10 Sep 2019]
+
+ *) Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random
+ number generator (RNG). This was intended to include protection in the
+ event of a fork() system call in order to ensure that the parent and child
+ processes did not share the same RNG state. However this protection was not
+ being used in the default case.
+
+ A partial mitigation for this issue is that the output from a high
+ precision timer is mixed into the RNG state so the likelihood of a parent
+ and child process sharing state is significantly reduced.
+
+ If an application already calls OPENSSL_init_crypto() explicitly using
+ OPENSSL_INIT_ATFORK then this problem does not occur at all.
+ (CVE-2019-1549)
+ [Matthias St. Pierre]
+
+ *) For built-in EC curves, ensure an EC_GROUP built from the curve name is
+ used even when parsing explicit parameters, when loading a serialized key
+ or calling `EC_GROUP_new_from_ecpkparameters()`/
+ `EC_GROUP_new_from_ecparameters()`.
+ This prevents bypass of security hardening and performance gains,
+ especially for curves with specialized EC_METHODs.
+ By default, if a key encoded with explicit parameters is loaded and later
+ serialized, the output is still encoded with explicit parameters, even if
+ internally a "named" EC_GROUP is used for computation.
+ [Nicola Tuveri]
+
+ *) Compute ECC cofactors if not provided during EC_GROUP construction. Before
+ this change, EC_GROUP_set_generator would accept order and/or cofactor as
+ NULL. After this change, only the cofactor parameter can be NULL. It also
+ does some minimal sanity checks on the passed order.
+ (CVE-2019-1547)
+ [Billy Bob Brumley]
+
+ *) Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey.
+ An attack is simple, if the first CMS_recipientInfo is valid but the
+ second CMS_recipientInfo is chosen ciphertext. If the second
+ recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct
+ encryption key will be replaced by garbage, and the message cannot be
+ decoded, but if the RSA decryption fails, the correct encryption key is
+ used and the recipient will not notice the attack.
+ As a work around for this potential attack the length of the decrypted
+ key must be equal to the cipher default key length, in case the
+ certifiate is not given and all recipientInfo are tried out.
+ The old behaviour can be re-enabled in the CMS code by setting the
+ CMS_DEBUG_DECRYPT flag.
+ (CVE-2019-1563)
+ [Bernd Edlinger]
+
+ *) Early start up entropy quality from the DEVRANDOM seed source has been
+ improved for older Linux systems. The RAND subsystem will wait for
+ /dev/random to be producing output before seeding from /dev/urandom.
+ The seeded state is stored for future library initialisations using
+ a system global shared memory segment. The shared memory identifier
+ can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to
+ the desired value. The default identifier is 114.
+ [Paul Dale]
+
+ *) Correct the extended master secret constant on EBCDIC systems. Without this
+ fix TLS connections between an EBCDIC system and a non-EBCDIC system that
+ negotiate EMS will fail. Unfortunately this also means that TLS connections
+ between EBCDIC systems with this fix, and EBCDIC systems without this
+ fix will fail if they negotiate EMS.
+ [Matt Caswell]
+
+ *) Use Windows installation paths in the mingw builds
+
+ Mingw isn't a POSIX environment per se, which means that Windows
+ paths should be used for installation.
+ (CVE-2019-1552)
+ [Richard Levitte]
+
+ *) Changed DH_check to accept parameters with order q and 2q subgroups.
+ With order 2q subgroups the bit 0 of the private key is not secret
+ but DH_generate_key works around that by clearing bit 0 of the
+ private key for those. This avoids leaking bit 0 of the private key.
+ [Bernd Edlinger]
+
+ *) Significantly reduce secure memory usage by the randomness pools.
+ [Paul Dale]
+
+ *) Revert the DEVRANDOM_WAIT feature for Linux systems
+
+ The DEVRANDOM_WAIT feature added a select() call to wait for the
+ /dev/random device to become readable before reading from the
+ /dev/urandom device.
+
+ It turned out that this change had negative side effects on
+ performance which were not acceptable. After some discussion it
+ was decided to revert this feature and leave it up to the OS
+ resp. the platform maintainer to ensure a proper initialization
+ during early boot time.
+ [Matthias St. Pierre]
+
+ Changes between 1.1.1b and 1.1.1c [28 May 2019]
+
+ *) Add build tests for C++. These are generated files that only do one
+ thing, to include one public OpenSSL head file each. This tests that
+ the public header files can be usefully included in a C++ application.
+
+ This test isn't enabled by default. It can be enabled with the option
+ 'enable-buildtest-c++'.
+ [Richard Levitte]
+
+ *) Enable SHA3 pre-hashing for ECDSA and DSA.
+ [Patrick Steuer]
+
+ *) Change the default RSA, DSA and DH size to 2048 bit instead of 1024.
+ This changes the size when using the genpkey app when no size is given. It
+ fixes an omission in earlier changes that changed all RSA, DSA and DH
+ generation apps to use 2048 bits by default.
+ [Kurt Roeckx]
+
+ *) Reorganize the manual pages to consistently have RETURN VALUES,
+ EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust
+ util/fix-doc-nits accordingly.
+ [Paul Yang, Joshua Lock]
+
+ *) Add the missing accessor EVP_PKEY_get0_engine()
+ [Matt Caswell]
+
+ *) Have apps like 's_client' and 's_server' output the signature scheme
+ along with other cipher suite parameters when debugging.
+ [Lorinczy Zsigmond]
+
+ *) Make OPENSSL_config() error agnostic again.
+ [Richard Levitte]
+
+ *) Do the error handling in RSA decryption constant time.
+ [Bernd Edlinger]
+
+ *) Prevent over long nonces in ChaCha20-Poly1305.
+
+ ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input
+ for every encryption operation. RFC 7539 specifies that the nonce value
+ (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length
+ and front pads the nonce with 0 bytes if it is less than 12
+ bytes. However it also incorrectly allows a nonce to be set of up to 16
+ bytes. In this case only the last 12 bytes are significant and any
+ additional leading bytes are ignored.
+
+ It is a requirement of using this cipher that nonce values are
+ unique. Messages encrypted using a reused nonce value are susceptible to
+ serious confidentiality and integrity attacks. If an application changes
+ the default nonce length to be longer than 12 bytes and then makes a
+ change to the leading bytes of the nonce expecting the new value to be a
+ new unique nonce then such an application could inadvertently encrypt
+ messages with a reused nonce.
+
+ Additionally the ignored bytes in a long nonce are not covered by the
+ integrity guarantee of this cipher. Any application that relies on the
+ integrity of these ignored leading bytes of a long nonce may be further
+ affected. Any OpenSSL internal use of this cipher, including in SSL/TLS,
+ is safe because no such use sets such a long nonce value. However user
+ applications that use this cipher directly and set a non-default nonce
+ length to be longer than 12 bytes may be vulnerable.
+
+ This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk
+ Greef of Ronomon.
+ (CVE-2019-1543)
+ [Matt Caswell]
+
+ *) Add DEVRANDOM_WAIT feature for Linux systems
+
+ On older Linux systems where the getrandom() system call is not available,
+ OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG.
+ Contrary to getrandom(), the /dev/urandom device will not block during
+ early boot when the kernel CSPRNG has not been seeded yet.
+
+ To mitigate this known weakness, use select() to wait for /dev/random to
+ become readable before reading from /dev/urandom.
+
+ *) Ensure that SM2 only uses SM3 as digest algorithm
+ [Paul Yang]
+
+ Changes between 1.1.1a and 1.1.1b [26 Feb 2019]
+
+ *) Added SCA hardening for modular field inversion in EC_GROUP through
+ a new dedicated field_inv() pointer in EC_METHOD.
+ This also addresses a leakage affecting conversions from projective
+ to affine coordinates.
+ [Billy Bob Brumley, Nicola Tuveri]
+
+ *) Change the info callback signals for the start and end of a post-handshake
+ message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START
+ and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get
+ confused by this and assume that a TLSv1.2 renegotiation has started. This
+ can break KeyUpdate handling. Instead we no longer signal the start and end
+ of a post handshake message exchange (although the messages themselves are
+ still signalled). This could break some applications that were expecting
+ the old signals. However without this KeyUpdate is not usable for many
+ applications.
+ [Matt Caswell]
+
+ *) Fix a bug in the computation of the endpoint-pair shared secret used
+ by DTLS over SCTP. This breaks interoperability with older versions
+ of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime
+ switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling
+ interoperability with such broken implementations. However, enabling
+ this switch breaks interoperability with correct implementations.
+
+ *) Fix a use after free bug in d2i_X509_PUBKEY when overwriting a
+ re-used X509_PUBKEY object if the second PUBKEY is malformed.
+ [Bernd Edlinger]
+
+ *) Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0().
+ [Richard Levitte]
+
+ *) Remove the 'dist' target and add a tarball building script. The
+ 'dist' target has fallen out of use, and it shouldn't be
+ necessary to configure just to create a source distribution.
+ [Richard Levitte]
+
+ *) Added support for Linux Kernel TLS data-path. The Linux Kernel data-path
+ improves application performance by removing data copies and providing
+ applications with zero-copy system calls such as sendfile and splice.
+ [Boris Pismenny]
+
+ Changes between 1.1.1 and 1.1.1a [20 Nov 2018]
+
+ *) Timing vulnerability in DSA signature generation
+
+ The OpenSSL DSA signature algorithm has been shown to be vulnerable to a
+ timing side channel attack. An attacker could use variations in the signing
+ algorithm to recover the private key.
+
+ This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser.
+ (CVE-2018-0734)
+ [Paul Dale]
+
+ *) Timing vulnerability in ECDSA signature generation
+
+ The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a
+ timing side channel attack. An attacker could use variations in the signing
+ algorithm to recover the private key.
+
+ This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser.
+ (CVE-2018-0735)
+ [Paul Dale]
+
+ *) Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for
+ the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names
+ are retained for backwards compatibility.
+ [Antoine Salon]
+
+ *) Fixed the issue that RAND_add()/RAND_seed() silently discards random input
+ if its length exceeds 4096 bytes. The limit has been raised to a buffer size
+ of two gigabytes and the error handling improved.
+
+ This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been
+ categorized as a normal bug, not a security issue, because the DRBG reseeds
+ automatically and is fully functional even without additional randomness
+ provided by the application.
+
+ Changes between 1.1.0i and 1.1.1 [11 Sep 2018]
+
+ *) Add a new ClientHello callback. Provides a callback interface that gives
+ the application the ability to adjust the nascent SSL object at the
+ earliest stage of ClientHello processing, immediately after extensions have
+ been collected but before they have been processed. In particular, this
+ callback can adjust the supported TLS versions in response to the contents
+ of the ClientHello
+ [Benjamin Kaduk]
+
+ *) Add SM2 base algorithm support.
+ [Jack Lloyd]
+
+ *) s390x assembly pack: add (improved) hardware-support for the following
+ cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb,
+ aes-cfb/cfb8, aes-ecb.
+ [Patrick Steuer]
+
+ *) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str
+ parameter is no longer accepted, as it leads to a corrupt table. NULL
+ pem_str is reserved for alias entries only.
+ [Richard Levitte]
+
+ *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder
+ step for prime curves. The new implementation is based on formulae from
+ differential addition-and-doubling in homogeneous projective coordinates
+ from Izu-Takagi "A fast parallel elliptic curve multiplication resistant
+ against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves
+ and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified
+ to work in projective coordinates.
+ [Billy Bob Brumley, Nicola Tuveri]
+
+ *) Change generating and checking of primes so that the error rate of not
+ being prime depends on the intended use based on the size of the input.
+ For larger primes this will result in more rounds of Miller-Rabin.
+ The maximal error rate for primes with more than 1080 bits is lowered
+ to 2^-128.
+ [Kurt Roeckx, Annie Yousar]
+
+ *) Increase the number of Miller-Rabin rounds for DSA key generating to 64.
+ [Kurt Roeckx]
+
+ *) The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when
+ moving between systems, and to avoid confusion when a Windows build is
+ done with mingw vs with MSVC. For POSIX installs, there's still a
+ symlink or copy named 'tsget' to avoid that confusion as well.
+ [Richard Levitte]
+
+ *) Revert blinding in ECDSA sign and instead make problematic addition
+ length-invariant. Switch even to fixed-length Montgomery multiplication.
+ [Andy Polyakov]
+
+ *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder
+ step for binary curves. The new implementation is based on formulae from
+ differential addition-and-doubling in mixed Lopez-Dahab projective
+ coordinates, modified to independently blind the operands.
+ [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri]
+
+ *) Add a scaffold to optionally enhance the Montgomery ladder implementation
+ for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing
+ EC_METHODs to implement their own specialized "ladder step", to take
+ advantage of more favorable coordinate systems or more efficient
+ differential addition-and-doubling algorithms.
+ [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri]
+
+ *) Modified the random device based seed sources to keep the relevant
+ file descriptors open rather than reopening them on each access.
+ This allows such sources to operate in a chroot() jail without
+ the associated device nodes being available. This behaviour can be
+ controlled using RAND_keep_random_devices_open().
+ [Paul Dale]
+
+ *) Numerous side-channel attack mitigations have been applied. This may have
+ performance impacts for some algorithms for the benefit of improved
+ security. Specific changes are noted in this change log by their respective
+ authors.
+ [Matt Caswell]
+
+ *) AIX shared library support overhaul. Switch to AIX "natural" way of
+ handling shared libraries, which means collecting shared objects of
+ different versions and bitnesses in one common archive. This allows to
+ mitigate conflict between 1.0 and 1.1 side-by-side installations. It
+ doesn't affect the way 3rd party applications are linked, only how
+ multi-version installation is managed.
+ [Andy Polyakov]
+
+ *) Make ec_group_do_inverse_ord() more robust and available to other
+ EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA
+ mitigations are applied to the fallback BN_mod_inverse().
+ When using this function rather than BN_mod_inverse() directly, new
+ EC cryptosystem implementations are then safer-by-default.
+ [Billy Bob Brumley]
+
+ *) Add coordinate blinding for EC_POINT and implement projective
+ coordinate blinding for generic prime curves as a countermeasure to
+ chosen point SCA attacks.
+ [Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley]
+
+ *) Add blinding to ECDSA and DSA signatures to protect against side channel
+ attacks discovered by Keegan Ryan (NCC Group).
+ [Matt Caswell]
+
+ *) Enforce checking in the pkeyutl command line app to ensure that the input
+ length does not exceed the maximum supported digest length when performing
+ a sign, verify or verifyrecover operation.
+ [Matt Caswell]
+
+ *) SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking
+ I/O in combination with something like select() or poll() will hang. This
+ can be turned off again using SSL_CTX_clear_mode().
+ Many applications do not properly handle non-application data records, and
+ TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works
+ around the problems in those applications, but can also break some.
+ It's recommended to read the manpages about SSL_read(), SSL_write(),
+ SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and
+ SSL_CTX_set_read_ahead() again.
+ [Kurt Roeckx]
+
+ *) When unlocking a pass phrase protected PEM file or PKCS#8 container, we
+ now allow empty (zero character) pass phrases.
+ [Richard Levitte]
+
+ *) Apply blinding to binary field modular inversion and remove patent
+ pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation.
+ [Billy Bob Brumley]
+
+ *) Deprecate ec2_mult.c and unify scalar multiplication code paths for
+ binary and prime elliptic curves.
+ [Billy Bob Brumley]
+
+ *) Remove ECDSA nonce padding: EC_POINT_mul is now responsible for
+ constant time fixed point multiplication.
+ [Billy Bob Brumley]
+
+ *) Revise elliptic curve scalar multiplication with timing attack
+ defenses: ec_wNAF_mul redirects to a constant time implementation
+ when computing fixed point and variable point multiplication (which
+ in OpenSSL are mostly used with secret scalars in keygen, sign,
+ ECDH derive operations).
+ [Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García,
+ Sohaib ul Hassan]
+
+ *) Updated CONTRIBUTING
+ [Rich Salz]
+
+ *) Updated DRBG / RAND to request nonce and additional low entropy
+ randomness from the system.
+ [Matthias St. Pierre]
+
+ *) Updated 'openssl rehash' to use OpenSSL consistent default.
+ [Richard Levitte]
+
+ *) Moved the load of the ssl_conf module to libcrypto, which helps
+ loading engines that libssl uses before libssl is initialised.
+ [Matt Caswell]
+
+ *) Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA
+ [Matt Caswell]
+
+ *) Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases.
+ [Ingo Schwarze, Rich Salz]
+
+ *) Added output of accepting IP address and port for 'openssl s_server'
+ [Richard Levitte]
+
+ *) Added a new API for TLSv1.3 ciphersuites:
+ SSL_CTX_set_ciphersuites()
+ SSL_set_ciphersuites()
+ [Matt Caswell]
+
+ *) Memory allocation failures consistently add an error to the error
+ stack.
+ [Rich Salz]
+
+ *) Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values
+ in libcrypto when run as setuid/setgid.
+ [Bernd Edlinger]
+
+ *) Load any config file by default when libssl is used.
+ [Matt Caswell]
+
+ *) Added new public header file <openssl/rand_drbg.h> and documentation
+ for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview.
+ [Matthias St. Pierre]
+
+ *) QNX support removed (cannot find contributors to get their approval
+ for the license change).
+ [Rich Salz]
+
+ *) TLSv1.3 replay protection for early data has been implemented. See the
+ SSL_read_early_data() man page for further details.
+ [Matt Caswell]
+
+ *) Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite
+ configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and
+ below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3.
+ In order to avoid issues where legacy TLSv1.2 ciphersuite configuration
+ would otherwise inadvertently disable all TLSv1.3 ciphersuites the
+ configuration has been separated out. See the ciphers man page or the
+ SSL_CTX_set_ciphersuites() man page for more information.
+ [Matt Caswell]
+
+ *) On POSIX (BSD, Linux, ...) systems the ocsp(1) command running
+ in responder mode now supports the new "-multi" option, which
+ spawns the specified number of child processes to handle OCSP
+ requests. The "-timeout" option now also limits the OCSP
+ responder's patience to wait to receive the full client request
+ on a newly accepted connection. Child processes are respawned
+ as needed, and the CA index file is automatically reloaded
+ when changed. This makes it possible to run the "ocsp" responder
+ as a long-running service, making the OpenSSL CA somewhat more
+ feature-complete. In this mode, most diagnostic messages logged
+ after entering the event loop are logged via syslog(3) rather than
+ written to stderr.
+ [Viktor Dukhovni]
+
+ *) Added support for X448 and Ed448. Heavily based on original work by
+ Mike Hamburg.
+ [Matt Caswell]
+
+ *) Extend OSSL_STORE with capabilities to search and to narrow the set of
+ objects loaded. This adds the functions OSSL_STORE_expect() and
+ OSSL_STORE_find() as well as needed tools to construct searches and
+ get the search data out of them.
+ [Richard Levitte]
+
+ *) Support for TLSv1.3 added. Note that users upgrading from an earlier
+ version of OpenSSL should review their configuration settings to ensure
+ that they are still appropriate for TLSv1.3. For further information see:
+ https://wiki.openssl.org/index.php/TLS1.3
+ [Matt Caswell]
+
+ *) Grand redesign of the OpenSSL random generator
+
+ The default RAND method now utilizes an AES-CTR DRBG according to
+ NIST standard SP 800-90Ar1. The new random generator is essentially
+ a port of the default random generator from the OpenSSL FIPS 2.0
+ object module. It is a hybrid deterministic random bit generator
+ using an AES-CTR bit stream and which seeds and reseeds itself
+ automatically using trusted system entropy sources.
+
+ Some of its new features are:
+ o Support for multiple DRBG instances with seed chaining.
+ o The default RAND method makes use of a DRBG.
+ o There is a public and private DRBG instance.
+ o The DRBG instances are fork-safe.
+ o Keep all global DRBG instances on the secure heap if it is enabled.
+ o The public and private DRBG instance are per thread for lock free
+ operation
+ [Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre]
+
+ *) Changed Configure so it only says what it does and doesn't dump
+ so much data. Instead, ./configdata.pm should be used as a script
+ to display all sorts of configuration data.
+ [Richard Levitte]
+
+ *) Added processing of "make variables" to Configure.
+ [Richard Levitte]
+
+ *) Added SHA512/224 and SHA512/256 algorithm support.
+ [Paul Dale]
+
+ *) The last traces of Netware support, first removed in 1.1.0, have
+ now been removed.
+ [Rich Salz]
+
+ *) Get rid of Makefile.shared, and in the process, make the processing
+ of certain files (rc.obj, or the .def/.map/.opt files produced from
+ the ordinal files) more visible and hopefully easier to trace and
+ debug (or make silent).
+ [Richard Levitte]
+
+ *) Make it possible to have environment variable assignments as
+ arguments to config / Configure.
+ [Richard Levitte]
+
+ *) Add multi-prime RSA (RFC 8017) support.
+ [Paul Yang]
+
+ *) Add SM3 implemented according to GB/T 32905-2016
+ [ Jack Lloyd <jack.lloyd at ribose.com>,
+ Ronald Tse <ronald.tse at ribose.com>,
+ Erick Borsboom <erick.borsboom at ribose.com> ]
+
+ *) Add 'Maximum Fragment Length' TLS extension negotiation and support
+ as documented in RFC6066.
+ Based on a patch from Tomasz Moń
+ [Filipe Raimundo da Silva]
+
+ *) Add SM4 implemented according to GB/T 32907-2016.
+ [ Jack Lloyd <jack.lloyd at ribose.com>,
+ Ronald Tse <ronald.tse at ribose.com>,
+ Erick Borsboom <erick.borsboom at ribose.com> ]
+
+ *) Reimplement -newreq-nodes and ERR_error_string_n; the
+ original author does not agree with the license change.
+ [Rich Salz]
+
+ *) Add ARIA AEAD TLS support.
+ [Jon Spillett]
+
+ *) Some macro definitions to support VS6 have been removed. Visual
+ Studio 6 has not worked since 1.1.0
+ [Rich Salz]
+
+ *) Add ERR_clear_last_mark(), to allow callers to clear the last mark
+ without clearing the errors.
+ [Richard Levitte]
+
+ *) Add "atfork" functions. If building on a system that without
+ pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application
+ requirements. The RAND facility now uses/requires this.
+ [Rich Salz]
+
+ *) Add SHA3.
+ [Andy Polyakov]
+
+ *) The UI API becomes a permanent and integral part of libcrypto, i.e.
+ not possible to disable entirely. However, it's still possible to
+ disable the console reading UI method, UI_OpenSSL() (use UI_null()
+ as a fallback).
+
+ To disable, configure with 'no-ui-console'. 'no-ui' is still
+ possible to use as an alias. Check at compile time with the
+ macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still
+ possible to check and is an alias for OPENSSL_NO_UI_CONSOLE.
+ [Richard Levitte]
+
+ *) Add a STORE module, which implements a uniform and URI based reader of
+ stores that can contain keys, certificates, CRLs and numerous other
+ objects. The main API is loosely based on a few stdio functions,
+ and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof,
+ OSSL_STORE_error and OSSL_STORE_close.
+ The implementation uses backends called "loaders" to implement arbitrary
+ URI schemes. There is one built in "loader" for the 'file' scheme.
+ [Richard Levitte]
+
+ *) Add devcrypto engine. This has been implemented against cryptodev-linux,
+ then adjusted to work on FreeBSD 8.4 as well.
+ Enable by configuring with 'enable-devcryptoeng'. This is done by default
+ on BSD implementations, as cryptodev.h is assumed to exist on all of them.
+ [Richard Levitte]
+
+ *) Module names can prefixed with OSSL_ or OPENSSL_. This affects
+ util/mkerr.pl, which is adapted to allow those prefixes, leading to
+ error code calls like this:
+
+ OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER);
+
+ With this change, we claim the namespaces OSSL and OPENSSL in a manner
+ that can be encoded in C. For the foreseeable future, this will only
+ affect new modules.
+ [Richard Levitte and Tim Hudson]
+
+ *) Removed BSD cryptodev engine.
+ [Rich Salz]
+
+ *) Add a build target 'build_all_generated', to build all generated files
+ and only that. This can be used to prepare everything that requires
+ things like perl for a system that lacks perl and then move everything
+ to that system and do the rest of the build there.
+ [Richard Levitte]
+
+ *) In the UI interface, make it possible to duplicate the user data. This
+ can be used by engines that need to retain the data for a longer time
+ than just the call where this user data is passed.
+ [Richard Levitte]
+
+ *) Ignore the '-named_curve auto' value for compatibility of applications
+ with OpenSSL 1.0.2.
+ [Tomas Mraz <tmraz at fedoraproject.org>]
+
+ *) Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2
+ bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such
+ alerts across multiple records (some of which could be empty). In practice
+ it make no sense to send an empty alert record, or to fragment one. TLSv1.3
+ prohibits this altogether and other libraries (BoringSSL, NSS) do not
+ support this at all. Supporting it adds significant complexity to the
+ record layer, and its removal is unlikely to cause interoperability
+ issues.
+ [Matt Caswell]
+
+ *) Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed
+ with Z. These are meant to replace LONG and ZLONG and to be size safe.
+ The use of LONG and ZLONG is discouraged and scheduled for deprecation
+ in OpenSSL 1.2.0.
+ [Richard Levitte]
+
+ *) Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string,
+ 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t.
+ [Richard Levitte, Andy Polyakov]
+
+ *) Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine()
+ does for RSA, etc.
+ [Richard Levitte]
+
+ *) Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target
+ platform rather than 'mingw'.
+ [Richard Levitte]
+
+ *) The functions X509_STORE_add_cert and X509_STORE_add_crl return
+ success if they are asked to add an object which already exists
+ in the store. This change cascades to other functions which load
+ certificates and CRLs.
+ [Paul Dale]
+
+ *) x86_64 assembly pack: annotate code with DWARF CFI directives to
+ facilitate stack unwinding even from assembly subroutines.
+ [Andy Polyakov]
+
+ *) Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN.
+ Also remove OPENSSL_GLOBAL entirely, as it became a no-op.
+ [Richard Levitte]
+
+ *) Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c.
+ VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1,
+ which is the minimum version we support.
+ [Richard Levitte]
+
+ *) Certificate time validation (X509_cmp_time) enforces stricter
+ compliance with RFC 5280. Fractional seconds and timezone offsets
+ are no longer allowed.
+ [Emilia Käsper]
+
+ *) Add support for ARIA
+ [Paul Dale]
+
+ *) s_client will now send the Server Name Indication (SNI) extension by
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