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|
NEWS
====
This file gives a brief overview of the major changes between each OpenSSL
release. For more details please read the CHANGES file.
Major changes between OpenSSL 1.1.1 and OpenSSL 3.0.0 [under development]
o enable-crypto-mdebug and enable-crypto-mdebug-backtrace were mostly
disabled; the project uses address sanitize/leak-detect instead.
o Added OSSL_SERIALIZER, a generic serializer API.
o Added error raising macros, ERR_raise() and ERR_raise_data().
o Deprecated ERR_put_error().
o Added OSSL_PROVIDER_available(), to check provider availibility.
o Added 'openssl mac' that uses the EVP_MAC API.
o Added 'openssl kdf' that uses the EVP_KDF API.
o Add OPENSSL_info() and 'openssl info' to get built-in data.
o Add support for enabling instrumentation through trace and debug
output.
o Changed our version number scheme and set the next major release to
3.0.0
o Added EVP_MAC, an EVP layer MAC API, and a generic EVP_PKEY to EVP_MAC
bridge.
o Removed the heartbeat message in DTLS feature.
o Added EVP_KDF, an EVP layer KDF API, and a generic EVP_PKEY to EVP_KDF
bridge.
o All of the low level MD2, MD4, MD5, MDC2, RIPEMD160, SHA1, SHA224,
SHA256, SHA384, SHA512 and Whirlpool digest functions have been
deprecated.
o All of the low level AES, Blowfish, Camellia, CAST, DES, IDEA, RC2,
RC4, RC5 and SEED cipher functions have been deprecated.
Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018]
o Timing vulnerability in DSA signature generation (CVE-2018-0734)
o Timing vulnerability in ECDSA signature generation (CVE-2018-0735)
Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.1 [11 Sep 2018]
o Support for TLSv1.3 added (see https://wiki.openssl.org/index.php/TLS1.3
for further important information). The TLSv1.3 implementation includes:
o Fully compliant implementation of RFC8446 (TLSv1.3) on by default
o Early data (0-RTT)
o Post-handshake authentication and key update
o Middlebox Compatibility Mode
o TLSv1.3 PSKs
o Support for all five RFC8446 ciphersuites
o RSA-PSS signature algorithms (backported to TLSv1.2)
o Configurable session ticket support
o Stateless server support
o Rewrite of the packet construction code for "safer" packet handling
o Rewrite of the extension handling code
o Complete rewrite of the OpenSSL random number generator to introduce the
following capabilities
o The default RAND method now utilizes an AES-CTR DRBG according to
NIST standard SP 800-90Ar1.
o Support for multiple DRBG instances with seed chaining.
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
o Support for various new cryptographic algorithms including:
o SHA3
o SHA512/224 and SHA512/256
o EdDSA (both Ed25519 and Ed448) including X509 and TLS support
o X448 (adding to the existing X25519 support in 1.1.0)
o Multi-prime RSA
o SM2
o SM3
o SM4
o SipHash
o ARIA (including TLS support)
o Significant Side-Channel attack security improvements
o Add a new ClientHello callback to provide the ability to adjust the SSL
object at an early stage.
o Add 'Maximum Fragment Length' TLS extension negotiation and support
o A new STORE module, which implements a uniform and URI based reader of
stores that can contain keys, certificates, CRLs and numerous other
objects.
o Move the display of configuration data to configdata.pm.
o Allow GNU style "make variables" to be used with Configure.
o Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes
o Rewrite of devcrypto engine
Major changes between OpenSSL 1.1.0h and OpenSSL 1.1.0i [under development]
o Client DoS due to large DH parameter (CVE-2018-0732)
o Cache timing vulnerability in RSA Key Generation (CVE-2018-0737)
Major changes between OpenSSL 1.1.0g and OpenSSL 1.1.0h [under development]
o Constructed ASN.1 types with a recursive definition could exceed the
stack (CVE-2018-0739)
o Incorrect CRYPTO_memcmp on HP-UX PA-RISC (CVE-2018-0733)
o rsaz_1024_mul_avx2 overflow bug on x86_64 (CVE-2017-3738)
Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.0g [2 Nov 2017]
o bn_sqrx8x_internal carry bug on x86_64 (CVE-2017-3736)
o Malformed X.509 IPAddressFamily could cause OOB read (CVE-2017-3735)
Major changes between OpenSSL 1.1.0e and OpenSSL 1.1.0f [25 May 2017]
o config now recognises 64-bit mingw and chooses mingw64 instead of mingw
Major changes between OpenSSL 1.1.0d and OpenSSL 1.1.0e [16 Feb 2017]
o Encrypt-Then-Mac renegotiation crash (CVE-2017-3733)
Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017]
o Truncated packet could crash via OOB read (CVE-2017-3731)
o Bad (EC)DHE parameters cause a client crash (CVE-2017-3730)
o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016]
o ChaCha20/Poly1305 heap-buffer-overflow (CVE-2016-7054)
o CMS Null dereference (CVE-2016-7053)
o Montgomery multiplication may produce incorrect results (CVE-2016-7055)
Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016]
o Fix Use After Free for large message sizes (CVE-2016-6309)
Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016]
o OCSP Status Request extension unbounded memory growth (CVE-2016-6304)
o SSL_peek() hang on empty record (CVE-2016-6305)
o Excessive allocation of memory in tls_get_message_header()
(CVE-2016-6307)
o Excessive allocation of memory in dtls1_preprocess_fragment()
(CVE-2016-6308)
Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016]
o Copyright text was shrunk to a boilerplate that points to the license
o "shared" builds are now the default when possible
o Added support for "pipelining"
o Added the AFALG engine
o New threading API implemented
o Support for ChaCha20 and Poly1305 added to libcrypto and libssl
o Support for extended master secret
o CCM ciphersuites
o Reworked test suite, now based on perl, Test::Harness and Test::More
o *Most* libcrypto and libssl public structures were made opaque,
including:
BIGNUM and associated types, EC_KEY and EC_KEY_METHOD,
DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD,
BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX,
EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX,
X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE,
X509_LOOKUP, X509_LOOKUP_METHOD
o libssl internal structures made opaque
o SSLv2 support removed
o Kerberos ciphersuite support removed
o RC4 removed from DEFAULT ciphersuites in libssl
o 40 and 56 bit cipher support removed from libssl
o All public header files moved to include/openssl, no more symlinking
o SSL/TLS state machine, version negotiation and record layer rewritten
o EC revision: now operations use new EC_KEY_METHOD.
o Support for OCB mode added to libcrypto
o Support for asynchronous crypto operations added to libcrypto and libssl
o Deprecated interfaces can now be disabled at build time either
relative to the latest release via the "no-deprecated" Configure
argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
o Application software can be compiled with -DOPENSSL_API_COMPAT=version
to ensure that features deprecated in that version are not exposed.
o Support for RFC6698/RFC7671 DANE TLSA peer authentication
o Change of Configure to use --prefix as the main installation
directory location rather than --openssldir. The latter becomes
the directory for certs, private key and openssl.cnf exclusively.
o Reworked BIO networking library, with full support for IPv6.
o New "unified" build system
o New security levels
o Support for scrypt algorithm
o Support for X25519
o Extended SSL_CONF support using configuration files
o KDF algorithm support. Implement TLS PRF as a KDF.
o Support for Certificate Transparency
o HKDF support.
Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
o EBCDIC overread (CVE-2016-2176)
o Modify behavior of ALPN to invoke callback after SNI/servername
callback, such that updates to the SSL_CTX affect ALPN.
o Remove LOW from the DEFAULT cipher list. This removes singles DES from
the default.
o Only remove the SSLv2 methods with the no-ssl2-method option.
Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
o Disable SSLv2 default build, default negotiation and weak ciphers
(CVE-2016-0800)
o Fix a double-free in DSA code (CVE-2016-0705)
o Disable SRP fake user seed to address a server memory leak
(CVE-2016-0798)
o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
(CVE-2016-0797)
o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
o Fix side channel attack on modular exponentiation (CVE-2016-0702)
Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
o DH small subgroups (CVE-2016-0701)
o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
o X509_ATTRIBUTE memory leak (CVE-2015-3195)
o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
o In DSA_generate_parameters_ex, if the provided seed is too short,
return an error
Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
o Alternate chains certificate forgery (CVE-2015-1793)
o Race condition handling PSK identify hint (CVE-2015-3196)
Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
o Fix HMAC ABI incompatibility
Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
o Malformed ECParameters causes infinite loop (CVE-2015-1788)
o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
o Race condition handling NewSessionTicket (CVE-2015-1791)
Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
o Multiblock corrupted pointer fix (CVE-2015-0290)
o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
o Empty CKE with client auth and DHE fix (CVE-2015-1787)
o Handshake with unseeded PRNG fix (CVE-2015-0285)
o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
o Removed the export ciphers from the DEFAULT ciphers
Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
o Suite B support for TLS 1.2 and DTLS 1.2
o Support for DTLS 1.2
o TLS automatic EC curve selection.
o API to set TLS supported signature algorithms and curves
o SSL_CONF configuration API.
o TLS Brainpool support.
o ALPN support.
o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
o Build fixes for the Windows and OpenVMS platforms
Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
o Fix for CVE-2014-3571
o Fix for CVE-2015-0206
o Fix for CVE-2014-3569
o Fix for CVE-2014-3572
o Fix for CVE-2015-0204
o Fix for CVE-2015-0205
o Fix for CVE-2014-8275
o Fix for CVE-2014-3570
Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
o Fix for CVE-2014-3513
o Fix for CVE-2014-3567
o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
o Fix for CVE-2014-3568
Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
o Fix for CVE-2014-3512
o Fix for CVE-2014-3511
o Fix for CVE-2014-3510
o Fix for CVE-2014-3507
o Fix for CVE-2014-3506
o Fix for CVE-2014-3505
o Fix for CVE-2014-3509
o Fix for CVE-2014-5139
o Fix for CVE-2014-3508
Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
o Fix for CVE-2014-0224
o Fix for CVE-2014-0221
o Fix for CVE-2014-0198
o Fix for CVE-2014-0195
o Fix for CVE-2014-3470
o Fix for CVE-2010-5298
Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
o Fix for CVE-2014-0160
o Add TLS padding extension workaround for broken servers.
o Fix for CVE-2014-0076
Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
o Don't include gmt_unix_time in TLS server and client random values
o Fix for TLS record tampering bug CVE-2013-4353
o Fix for TLS version checking bug CVE-2013-6449
o Fix for DTLS retransmission bug CVE-2013-6450
Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
o Corrected fix for CVE-2013-0169
Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
o Include the fips configuration module.
o Fix OCSP bad key DoS attack CVE-2013-0166
o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
o Fix for TLS AESNI record handling flaw CVE-2012-2686
Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
o Fix TLS/DTLS record length checking bug CVE-2012-2333
o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
o Fix compilation error on non-x86 platforms.
o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
o Fix for ASN1 overflow bug CVE-2012-2110
o Workarounds for some servers that hang on long client hellos.
o Fix SEGV in AES code.
Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
o TLS/DTLS heartbeat support.
o SCTP support.
o RFC 5705 TLS key material exporter.
o RFC 5764 DTLS-SRTP negotiation.
o Next Protocol Negotiation.
o PSS signatures in certificates, requests and CRLs.
o Support for password based recipient info for CMS.
o Support TLS v1.2 and TLS v1.1.
o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
o SRP support.
Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
o Fix for CMS/PKCS#7 MMA CVE-2012-0884
o Corrected fix for CVE-2011-4619
o Various DTLS fixes.
Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
o Fix for DTLS DoS issue CVE-2012-0050
Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
o Fix for DTLS plaintext recovery attack CVE-2011-4108
o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
o Check for malformed RFC3779 data CVE-2011-4577
Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
o Fix for CRL vulnerability issue CVE-2011-3207
o Fix for ECDH crashes CVE-2011-3210
o Protection against EC timing attacks.
o Support ECDH ciphersuites for certificates using SHA2 algorithms.
o Various DTLS fixes.
Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
o Fix for security issue CVE-2011-0014
Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
o Fix for security issue CVE-2010-4180
o Fix for CVE-2010-4252
o Fix mishandling of absent EC point format extension.
o Fix various platform compilation issues.
o Corrected fix for security issue CVE-2010-3864.
Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
o Fix for security issue CVE-2010-3864.
o Fix for CVE-2010-2939
o Fix WIN32 build system for GOST ENGINE.
Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
o Fix for security issue CVE-2010-1633.
o GOST MAC and CFB fixes.
Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
o RFC3280 path validation: sufficient to process PKITS tests.
o Integrated support for PVK files and keyblobs.
o Change default private key format to PKCS#8.
o CMS support: able to process all examples in RFC4134
o Streaming ASN1 encode support for PKCS#7 and CMS.
o Multiple signer and signer add support for PKCS#7 and CMS.
o ASN1 printing support.
o Whirlpool hash algorithm added.
o RFC3161 time stamp support.
o New generalised public key API supporting ENGINE based algorithms.
o New generalised public key API utilities.
o New ENGINE supporting GOST algorithms.
o SSL/TLS GOST ciphersuite support.
o PKCS#7 and CMS GOST support.
o RFC4279 PSK ciphersuite support.
o Supported points format extension for ECC ciphersuites.
o ecdsa-with-SHA224/256/384/512 signature types.
o dsa-with-SHA224 and dsa-with-SHA256 signature types.
o Opaque PRF Input TLS extension support.
o Updated time routines to avoid OS limitations.
Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
o CFB cipher definition fixes.
o Fix security issues CVE-2010-0740 and CVE-2010-0433.
Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
o Cipher definition fixes.
o Workaround for slow RAND_poll() on some WIN32 versions.
o Remove MD2 from algorithm tables.
o SPKAC handling fixes.
o Support for RFC5746 TLS renegotiation extension.
o Compression memory leak fixed.
o Compression session resumption fixed.
o Ticket and SNI coexistence fixes.
o Many fixes to DTLS handling.
Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
o Temporary work around for CVE-2009-3555: disable renegotiation.
Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
o Fix various build issues.
o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
o Fix security issue (CVE-2008-5077)
o Merge FIPS 140-2 branch code.
Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
o CryptoAPI ENGINE support.
o Various precautionary measures.
o Fix for bugs affecting certificate request creation.
o Support for local machine keyset attribute in PKCS#12 files.
Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
o Backport of CMS functionality to 0.9.8.
o Fixes for bugs introduced with 0.9.8f.
Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
o Add gcc 4.2 support.
o Add support for AES and SSE2 assembly language optimization
for VC++ build.
o Support for RFC4507bis and server name extensions if explicitly
selected at compile time.
o DTLS improvements.
o RFC4507bis support.
o TLS Extensions support.
Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
o Various ciphersuite selection fixes.
o RFC3779 support.
Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
o Changes to ciphersuite selection algorithm
Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
o New cipher Camellia
Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
o Cipher string fixes.
o Fixes for VC++ 2005.
o Updated ECC cipher suite support.
o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
o Zlib compression usage fixes.
o Built in dynamic engine compilation support on Win32.
o Fixes auto dynamic engine loading in Win32.
Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
o Fix potential SSL 2.0 rollback, CVE-2005-2969
o Extended Windows CE support
Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
o Major work on the BIGNUM library for higher efficiency and to
make operations more streamlined and less contradictory. This
is the result of a major audit of the BIGNUM library.
o Addition of BIGNUM functions for fields GF(2^m) and NIST
curves, to support the Elliptic Crypto functions.
o Major work on Elliptic Crypto; ECDH and ECDSA added, including
the use through EVP, X509 and ENGINE.
o New ASN.1 mini-compiler that's usable through the OpenSSL
configuration file.
o Added support for ASN.1 indefinite length constructed encoding.
o New PKCS#12 'medium
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