From owner-dev-commits-src-all@freebsd.org Thu Mar 25 15:47:38 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2A3445C2310; Thu, 25 Mar 2021 15:47:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4F5qHZ0gMLz3mgj; Thu, 25 Mar 2021 15:47:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 04ADB1A45; Thu, 25 Mar 2021 15:47:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 12PFlbcb026919; Thu, 25 Mar 2021 15:47:37 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 12PFlbeX026917; Thu, 25 Mar 2021 15:47:37 GMT (envelope-from git) Date: Thu, 25 Mar 2021 15:47:37 GMT Message-Id: <202103251547.12PFlbeX026917@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Jung-uk Kim Subject: git: b6c1fdcdf503 - main - OpenSSL: Merge OpenSSL 1.1.1k MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jkim X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: b6c1fdcdf5033d20c61cc77d66f58f31cc65e2ba Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Mar 2021 15:47:38 -0000 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 AuthorDate: 2021-03-25 15:45:19 +0000 Commit: Jung-uk Kim 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 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 , + Ronald Tse , + Erick Borsboom ] + + *) 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 , + Ronald Tse , + Erick Borsboom ] + + *) 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 ] + + *) 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 *** 18530 LINES SKIPPED ***