1 2 NEWS 3 ==== 4 5 This file gives a brief overview of the major changes between each OpenSSL 6 release. For more details please read the CHANGES file. 7 8 Major changes between OpenSSL 1.1.1j and OpenSSL 1.1.1k [25 Mar 2021] 9 10 o Fixed a problem with verifying a certificate chain when using the 11 X509_V_FLAG_X509_STRICT flag (CVE-2021-3450) 12 o Fixed an issue where an OpenSSL TLS server may crash if sent a 13 maliciously crafted renegotiation ClientHello message from a client 14 (CVE-2021-3449) 15 16 Major changes between OpenSSL 1.1.1i and OpenSSL 1.1.1j [16 Feb 2021] 17 18 o Fixed a NULL pointer deref in the X509_issuer_and_serial_hash() 19 function (CVE-2021-23841) 20 o Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 21 padding mode to correctly check for rollback attacks 22 o Fixed an overflow in the EVP_CipherUpdate, EVP_EncryptUpdate and 23 EVP_DecryptUpdate functions (CVE-2021-23840) 24 o Fixed SRP_Calc_client_key so that it runs in constant time 25 26 Major changes between OpenSSL 1.1.1h and OpenSSL 1.1.1i [8 Dec 2020] 27 28 o Fixed NULL pointer deref in GENERAL_NAME_cmp (CVE-2020-1971) 29 30 Major changes between OpenSSL 1.1.1g and OpenSSL 1.1.1h [22 Sep 2020] 31 32 o Disallow explicit curve parameters in verifications chains when 33 X509_V_FLAG_X509_STRICT is used 34 o Enable 'MinProtocol' and 'MaxProtocol' to configure both TLS and DTLS 35 contexts 36 o Oracle Developer Studio will start reporting deprecation warnings 37 38 Major changes between OpenSSL 1.1.1f and OpenSSL 1.1.1g [21 Apr 2020] 39 40 o Fixed segmentation fault in SSL_check_chain() (CVE-2020-1967) 41 42 Major changes between OpenSSL 1.1.1e and OpenSSL 1.1.1f [31 Mar 2020] 43 44 o Revert the unexpected EOF reporting via SSL_ERROR_SSL 45 46 Major changes between OpenSSL 1.1.1d and OpenSSL 1.1.1e [17 Mar 2020] 47 48 o Fixed an overflow bug in the x64_64 Montgomery squaring procedure 49 used in exponentiation with 512-bit moduli (CVE-2019-1551) 50 o Properly detect unexpected EOF while reading in libssl and report 51 it via SSL_ERROR_SSL 52 53 Major changes between OpenSSL 1.1.1c and OpenSSL 1.1.1d [10 Sep 2019] 54 55 o Fixed a fork protection issue (CVE-2019-1549) 56 o Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey 57 (CVE-2019-1563) 58 o For built-in EC curves, ensure an EC_GROUP built from the curve name is 59 used even when parsing explicit parameters 60 o Compute ECC cofactors if not provided during EC_GROUP construction 61 (CVE-2019-1547) 62 o Early start up entropy quality from the DEVRANDOM seed source has been 63 improved for older Linux systems 64 o Correct the extended master secret constant on EBCDIC systems 65 o Use Windows installation paths in the mingw builds (CVE-2019-1552) 66 o Changed DH_check to accept parameters with order q and 2q subgroups 67 o Significantly reduce secure memory usage by the randomness pools 68 o Revert the DEVRANDOM_WAIT feature for Linux systems 69 70 Major changes between OpenSSL 1.1.1b and OpenSSL 1.1.1c [28 May 2019] 71 72 o Prevent over long nonces in ChaCha20-Poly1305 (CVE-2019-1543) 73 74 Major changes between OpenSSL 1.1.1a and OpenSSL 1.1.1b [26 Feb 2019] 75 76 o Change the info callback signals for the start and end of a post-handshake 77 message exchange in TLSv1.3. 78 o Fix a bug in DTLS over SCTP. This breaks interoperability with older versions 79 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. 80 81 Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018] 82 83 o Timing vulnerability in DSA signature generation (CVE-2018-0734) 84 o Timing vulnerability in ECDSA signature generation (CVE-2018-0735) 85 86 Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.1 [11 Sep 2018] 87 88 o Support for TLSv1.3 added (see https://wiki.openssl.org/index.php/TLS1.3 89 for further important information). The TLSv1.3 implementation includes: 90 o Fully compliant implementation of RFC8446 (TLSv1.3) on by default 91 o Early data (0-RTT) 92 o Post-handshake authentication and key update 93 o Middlebox Compatibility Mode 94 o TLSv1.3 PSKs 95 o Support for all five RFC8446 ciphersuites 96 o RSA-PSS signature algorithms (backported to TLSv1.2) 97 o Configurable session ticket support 98 o Stateless server support 99 o Rewrite of the packet construction code for "safer" packet handling 100 o Rewrite of the extension handling code 101 o Complete rewrite of the OpenSSL random number generator to introduce the 102 following capabilities 103 o The default RAND method now utilizes an AES-CTR DRBG according to 104 NIST standard SP 800-90Ar1. 105 o Support for multiple DRBG instances with seed chaining. 106 o There is a public and private DRBG instance. 107 o The DRBG instances are fork-safe. 108 o Keep all global DRBG instances on the secure heap if it is enabled. 109 o The public and private DRBG instance are per thread for lock free 110 operation 111 o Support for various new cryptographic algorithms including: 112 o SHA3 113 o SHA512/224 and SHA512/256 114 o EdDSA (both Ed25519 and Ed448) including X509 and TLS support 115 o X448 (adding to the existing X25519 support in 1.1.0) 116 o Multi-prime RSA 117 o SM2 118 o SM3 119 o SM4 120 o SipHash 121 o ARIA (including TLS support) 122 o Significant Side-Channel attack security improvements 123 o Add a new ClientHello callback to provide the ability to adjust the SSL 124 object at an early stage. 125 o Add 'Maximum Fragment Length' TLS extension negotiation and support 126 o A new STORE module, which implements a uniform and URI based reader of 127 stores that can contain keys, certificates, CRLs and numerous other 128 objects. 129 o Move the display of configuration data to configdata.pm. 130 o Allow GNU style "make variables" to be used with Configure. 131 o Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes 132 o Rewrite of devcrypto engine 133 134 Major changes between OpenSSL 1.1.0h and OpenSSL 1.1.0i [under development] 135 136 o Client DoS due to large DH parameter (CVE-2018-0732) 137 o Cache timing vulnerability in RSA Key Generation (CVE-2018-0737) 138 139 Major changes between OpenSSL 1.1.0g and OpenSSL 1.1.0h [under development] 140 141 o Constructed ASN.1 types with a recursive definition could exceed the 142 stack (CVE-2018-0739) 143 o Incorrect CRYPTO_memcmp on HP-UX PA-RISC (CVE-2018-0733) 144 o rsaz_1024_mul_avx2 overflow bug on x86_64 (CVE-2017-3738) 145 146 Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.0g [2 Nov 2017] 147 148 o bn_sqrx8x_internal carry bug on x86_64 (CVE-2017-3736) 149 o Malformed X.509 IPAddressFamily could cause OOB read (CVE-2017-3735) 150 151 Major changes between OpenSSL 1.1.0e and OpenSSL 1.1.0f [25 May 2017] 152 153 o config now recognises 64-bit mingw and chooses mingw64 instead of mingw 154 155 Major changes between OpenSSL 1.1.0d and OpenSSL 1.1.0e [16 Feb 2017] 156 157 o Encrypt-Then-Mac renegotiation crash (CVE-2017-3733) 158 159 Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017] 160 161 o Truncated packet could crash via OOB read (CVE-2017-3731) 162 o Bad (EC)DHE parameters cause a client crash (CVE-2017-3730) 163 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732) 164 165 Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016] 166 167 o ChaCha20/Poly1305 heap-buffer-overflow (CVE-2016-7054) 168 o CMS Null dereference (CVE-2016-7053) 169 o Montgomery multiplication may produce incorrect results (CVE-2016-7055) 170 171 Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016] 172 173 o Fix Use After Free for large message sizes (CVE-2016-6309) 174 175 Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016] 176 177 o OCSP Status Request extension unbounded memory growth (CVE-2016-6304) 178 o SSL_peek() hang on empty record (CVE-2016-6305) 179 o Excessive allocation of memory in tls_get_message_header() 180 (CVE-2016-6307) 181 o Excessive allocation of memory in dtls1_preprocess_fragment() 182 (CVE-2016-6308) 183 184 Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016] 185 186 o Copyright text was shrunk to a boilerplate that points to the license 187 o "shared" builds are now the default when possible 188 o Added support for "pipelining" 189 o Added the AFALG engine 190 o New threading API implemented 191 o Support for ChaCha20 and Poly1305 added to libcrypto and libssl 192 o Support for extended master secret 193 o CCM ciphersuites 194 o Reworked test suite, now based on perl, Test::Harness and Test::More 195 o *Most* libcrypto and libssl public structures were made opaque, 196 including: 197 BIGNUM and associated types, EC_KEY and EC_KEY_METHOD, 198 DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD, 199 BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, 200 EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX, 201 X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE, 202 X509_LOOKUP, X509_LOOKUP_METHOD 203 o libssl internal structures made opaque 204 o SSLv2 support removed 205 o Kerberos ciphersuite support removed 206 o RC4 removed from DEFAULT ciphersuites in libssl 207 o 40 and 56 bit cipher support removed from libssl 208 o All public header files moved to include/openssl, no more symlinking 209 o SSL/TLS state machine, version negotiation and record layer rewritten 210 o EC revision: now operations use new EC_KEY_METHOD. 211 o Support for OCB mode added to libcrypto 212 o Support for asynchronous crypto operations added to libcrypto and libssl 213 o Deprecated interfaces can now be disabled at build time either 214 relative to the latest release via the "no-deprecated" Configure 215 argument, or via the "--api=1.1.0|1.0.0|0.9.8" option. 216 o Application software can be compiled with -DOPENSSL_API_COMPAT=version 217 to ensure that features deprecated in that version are not exposed. 218 o Support for RFC6698/RFC7671 DANE TLSA peer authentication 219 o Change of Configure to use --prefix as the main installation 220 directory location rather than --openssldir. The latter becomes 221 the directory for certs, private key and openssl.cnf exclusively. 222 o Reworked BIO networking library, with full support for IPv6. 223 o New "unified" build system 224 o New security levels 225 o Support for scrypt algorithm 226 o Support for X25519 227 o Extended SSL_CONF support using configuration files 228 o KDF algorithm support. Implement TLS PRF as a KDF. 229 o Support for Certificate Transparency 230 o HKDF support. 231 232 Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016] 233 234 o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107) 235 o Fix EVP_EncodeUpdate overflow (CVE-2016-2105) 236 o Fix EVP_EncryptUpdate overflow (CVE-2016-2106) 237 o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109) 238 o EBCDIC overread (CVE-2016-2176) 239 o Modify behavior of ALPN to invoke callback after SNI/servername 240 callback, such that updates to the SSL_CTX affect ALPN. 241 o Remove LOW from the DEFAULT cipher list. This removes singles DES from 242 the default. 243 o Only remove the SSLv2 methods with the no-ssl2-method option. 244 245 Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016] 246 247 o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 248 o Disable SSLv2 default build, default negotiation and weak ciphers 249 (CVE-2016-0800) 250 o Fix a double-free in DSA code (CVE-2016-0705) 251 o Disable SRP fake user seed to address a server memory leak 252 (CVE-2016-0798) 253 o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 254 (CVE-2016-0797) 255 o Fix memory issues in BIO_*printf functions (CVE-2016-0799) 256 o Fix side channel attack on modular exponentiation (CVE-2016-0702) 257 258 Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016] 259 260 o DH small subgroups (CVE-2016-0701) 261 o SSLv2 doesn't block disabled ciphers (CVE-2015-3197) 262 263 Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015] 264 265 o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193) 266 o Certificate verify crash with missing PSS parameter (CVE-2015-3194) 267 o X509_ATTRIBUTE memory leak (CVE-2015-3195) 268 o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs 269 o In DSA_generate_parameters_ex, if the provided seed is too short, 270 return an error 271 272 Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015] 273 274 o Alternate chains certificate forgery (CVE-2015-1793) 275 o Race condition handling PSK identify hint (CVE-2015-3196) 276 277 Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015] 278 279 o Fix HMAC ABI incompatibility 280 281 Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015] 282 283 o Malformed ECParameters causes infinite loop (CVE-2015-1788) 284 o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789) 285 o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790) 286 o CMS verify infinite loop with unknown hash function (CVE-2015-1792) 287 o Race condition handling NewSessionTicket (CVE-2015-1791) 288 289 Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015] 290 291 o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291) 292 o Multiblock corrupted pointer fix (CVE-2015-0290) 293 o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207) 294 o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286) 295 o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208) 296 o ASN.1 structure reuse memory corruption fix (CVE-2015-0287) 297 o PKCS7 NULL pointer dereferences fix (CVE-2015-0289) 298 o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293) 299 o Empty CKE with client auth and DHE fix (CVE-2015-1787) 300 o Handshake with unseeded PRNG fix (CVE-2015-0285) 301 o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209) 302 o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288) 303 o Removed the export ciphers from the DEFAULT ciphers 304 305 Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]: 306 307 o Suite B support for TLS 1.2 and DTLS 1.2 308 o Support for DTLS 1.2 309 o TLS automatic EC curve selection. 310 o API to set TLS supported signature algorithms and curves 311 o SSL_CONF configuration API. 312 o TLS Brainpool support. 313 o ALPN support. 314 o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH. 315 316 Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015] 317 318 o Build fixes for the Windows and OpenVMS platforms 319 320 Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015] 321 322 o Fix for CVE-2014-3571 323 o Fix for CVE-2015-0206 324 o Fix for CVE-2014-3569 325 o Fix for CVE-2014-3572 326 o Fix for CVE-2015-0204 327 o Fix for CVE-2015-0205 328 o Fix for CVE-2014-8275 329 o Fix for CVE-2014-3570 330 331 Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014] 332 333 o Fix for CVE-2014-3513 334 o Fix for CVE-2014-3567 335 o Mitigation for CVE-2014-3566 (SSL protocol vulnerability) 336 o Fix for CVE-2014-3568 337 338 Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014] 339 340 o Fix for CVE-2014-3512 341 o Fix for CVE-2014-3511 342 o Fix for CVE-2014-3510 343 o Fix for CVE-2014-3507 344 o Fix for CVE-2014-3506 345 o Fix for CVE-2014-3505 346 o Fix for CVE-2014-3509 347 o Fix for CVE-2014-5139 348 o Fix for CVE-2014-3508 349 350 Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014] 351 352 o Fix for CVE-2014-0224 353 o Fix for CVE-2014-0221 354 o Fix for CVE-2014-0198 355 o Fix for CVE-2014-0195 356 o Fix for CVE-2014-3470 357 o Fix for CVE-2010-5298 358 359 Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014] 360 361 o Fix for CVE-2014-0160 362 o Add TLS padding extension workaround for broken servers. 363 o Fix for CVE-2014-0076 364 365 Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014] 366 367 o Don't include gmt_unix_time in TLS server and client random values 368 o Fix for TLS record tampering bug CVE-2013-4353 369 o Fix for TLS version checking bug CVE-2013-6449 370 o Fix for DTLS retransmission bug CVE-2013-6450 371 372 Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]: 373 374 o Corrected fix for CVE-2013-0169 375 376 Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]: 377 378 o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version. 379 o Include the fips configuration module. 380 o Fix OCSP bad key DoS attack CVE-2013-0166 381 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169 382 o Fix for TLS AESNI record handling flaw CVE-2012-2686 383 384 Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]: 385 386 o Fix TLS/DTLS record length checking bug CVE-2012-2333 387 o Don't attempt to use non-FIPS composite ciphers in FIPS mode. 388 389 Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]: 390 391 o Fix compilation error on non-x86 platforms. 392 o Make FIPS capable OpenSSL ciphers work in non-FIPS mode. 393 o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0 394 395 Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]: 396 397 o Fix for ASN1 overflow bug CVE-2012-2110 398 o Workarounds for some servers that hang on long client hellos. 399 o Fix SEGV in AES code. 400 401 Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]: 402 403 o TLS/DTLS heartbeat support. 404 o SCTP support. 405 o RFC 5705 TLS key material exporter. 406 o RFC 5764 DTLS-SRTP negotiation. 407 o Next Protocol Negotiation. 408 o PSS signatures in certificates, requests and CRLs. 409 o Support for password based recipient info for CMS. 410 o Support TLS v1.2 and TLS v1.1. 411 o Preliminary FIPS capability for unvalidated 2.0 FIPS module. 412 o SRP support. 413 414 Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]: 415 416 o Fix for CMS/PKCS#7 MMA CVE-2012-0884 417 o Corrected fix for CVE-2011-4619 418 o Various DTLS fixes. 419 420 Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]: 421 422 o Fix for DTLS DoS issue CVE-2012-0050 423 424 Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]: 425 426 o Fix for DTLS plaintext recovery attack CVE-2011-4108 427 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576 428 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619 429 o Check parameters are not NULL in GOST ENGINE CVE-2012-0027 430 o Check for malformed RFC3779 data CVE-2011-4577 431 432 Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]: 433 434 o Fix for CRL vulnerability issue CVE-2011-3207 435 o Fix for ECDH crashes CVE-2011-3210 436 o Protection against EC timing attacks. 437 o Support ECDH ciphersuites for certificates using SHA2 algorithms. 438 o Various DTLS fixes. 439 440 Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]: 441 442 o Fix for security issue CVE-2011-0014 443 444 Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]: 445 446 o Fix for security issue CVE-2010-4180 447 o Fix for CVE-2010-4252 448 o Fix mishandling of absent EC point format extension. 449 o Fix various platform compilation issues. 450 o Corrected fix for security issue CVE-2010-3864. 451 452 Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]: 453 454 o Fix for security issue CVE-2010-3864. 455 o Fix for CVE-2010-2939 456 o Fix WIN32 build system for GOST ENGINE. 457 458 Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]: 459 460 o Fix for security issue CVE-2010-1633. 461 o GOST MAC and CFB fixes. 462 463 Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]: 464 465 o RFC3280 path validation: sufficient to process PKITS tests. 466 o Integrated support for PVK files and keyblobs. 467 o Change default private key format to PKCS#8. 468 o CMS support: able to process all examples in RFC4134 469 o Streaming ASN1 encode support for PKCS#7 and CMS. 470 o Multiple signer and signer add support for PKCS#7 and CMS. 471 o ASN1 printing support. 472 o Whirlpool hash algorithm added. 473 o RFC3161 time stamp support. 474 o New generalised public key API supporting ENGINE based algorithms. 475 o New generalised public key API utilities. 476 o New ENGINE supporting GOST algorithms. 477 o SSL/TLS GOST ciphersuite support. 478 o PKCS#7 and CMS GOST support. 479 o RFC4279 PSK ciphersuite support. 480 o Supported points format extension for ECC ciphersuites. 481 o ecdsa-with-SHA224/256/384/512 signature types. 482 o dsa-with-SHA224 and dsa-with-SHA256 signature types. 483 o Opaque PRF Input TLS extension support. 484 o Updated time routines to avoid OS limitations. 485 486 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]: 487 488 o CFB cipher definition fixes. 489 o Fix security issues CVE-2010-0740 and CVE-2010-0433. 490 491 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]: 492 493 o Cipher definition fixes. 494 o Workaround for slow RAND_poll() on some WIN32 versions. 495 o Remove MD2 from algorithm tables. 496 o SPKAC handling fixes. 497 o Support for RFC5746 TLS renegotiation extension. 498 o Compression memory leak fixed. 499 o Compression session resumption fixed. 500 o Ticket and SNI coexistence fixes. 501 o Many fixes to DTLS handling. 502 503 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]: 504 505 o Temporary work around for CVE-2009-3555: disable renegotiation. 506 507 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]: 508 509 o Fix various build issues. 510 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789) 511 512 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]: 513 514 o Fix security issue (CVE-2008-5077) 515 o Merge FIPS 140-2 branch code. 516 517 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]: 518 519 o CryptoAPI ENGINE support. 520 o Various precautionary measures. 521 o Fix for bugs affecting certificate request creation. 522 o Support for local machine keyset attribute in PKCS#12 files. 523 524 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]: 525 526 o Backport of CMS functionality to 0.9.8. 527 o Fixes for bugs introduced with 0.9.8f. 528 529 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]: 530 531 o Add gcc 4.2 support. 532 o Add support for AES and SSE2 assembly language optimization 533 for VC++ build. 534 o Support for RFC4507bis and server name extensions if explicitly 535 selected at compile time. 536 o DTLS improvements. 537 o RFC4507bis support. 538 o TLS Extensions support. 539 540 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]: 541 542 o Various ciphersuite selection fixes. 543 o RFC3779 support. 544 545 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]: 546 547 o Introduce limits to prevent malicious key DoS (CVE-2006-2940) 548 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343) 549 o Changes to ciphersuite selection algorithm 550 551 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]: 552 553 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339 554 o New cipher Camellia 555 556 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]: 557 558 o Cipher string fixes. 559 o Fixes for VC++ 2005. 560 o Updated ECC cipher suite support. 561 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free(). 562 o Zlib compression usage fixes. 563 o Built in dynamic engine compilation support on Win32. 564 o Fixes auto dynamic engine loading in Win32. 565 566 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]: 567 568 o Fix potential SSL 2.0 rollback, CVE-2005-2969 569 o Extended Windows CE support 570 571 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]: 572 573 o Major work on the BIGNUM library for higher efficiency and to 574 make operations more streamlined and less contradictory. This 575 is the result of a major audit of the BIGNUM library. 576 o Addition of BIGNUM functions for fields GF(2^m) and NIST 577 curves, to support the Elliptic Crypto functions. 578 o Major work on Elliptic Crypto; ECDH and ECDSA added, including 579 the use through EVP, X509 and ENGINE. 580 o New ASN.1 mini-compiler that's usable through the OpenSSL 581 configuration file. 582 o Added support for ASN.1 indefinite length constructed encoding. 583 o New PKCS#12 'medium level' API to manipulate PKCS#12 files. 584 o Complete rework of shared library construction and linking 585 programs with shared or static libraries, through a separate 586 Makefile.shared. 587 o Rework of the passing of parameters from one Makefile to another. 588 o Changed ENGINE framework to load dynamic engine modules 589 automatically from specifically given directories. 590 o New structure and ASN.1 functions for CertificatePair. 591 o Changed the ZLIB compression method to be stateful. 592 o Changed the key-generation and primality testing "progress" 593 mechanism to take a structure that contains the ticker 594 function and an argument. 595 o New engine module: GMP (performs private key exponentiation). 596 o New engine module: VIA PadLOck ACE extension in VIA C3 597 Nehemiah processors. 598 o Added support for IPv6 addresses in certificate extensions. 599 See RFC 1884, section 2.2. 600 o Added support for certificate policy mappings, policy 601 constraints and name constraints. 602 o Added support for multi-valued AVAs in the OpenSSL 603 configuration file. 604 o Added support for multiple certificates with the same subject 605 in the 'openssl ca' index file. 606 o Make it possible to create self-signed certificates using 607 'openssl ca -selfsign'. 608 o Make it possible to generate a serial number file with 609 'openssl ca -create_serial'. 610 o New binary search functions with extended functionality. 611 o New BUF functions. 612 o New STORE structure and library to provide an interface to all 613 sorts of data repositories. Supports storage of public and 614 private keys, certificates, CRLs, numbers and arbitrary blobs. 615 This library is unfortunately unfinished and unused within 616 OpenSSL. 617 o New control functions for the error stack. 618 o Changed the PKCS#7 library to support one-pass S/MIME 619 processing. 620 o Added the possibility to compile without old deprecated 621 functionality with the OPENSSL_NO_DEPRECATED macro or the 622 'no-deprecated' argument to the config and Configure scripts. 623 o Constification of all ASN.1 conversion functions, and other 624 affected functions. 625 o Improved platform support for PowerPC. 626 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512). 627 o New X509_VERIFY_PARAM structure to support parameterisation 628 of X.509 path validation. 629 o Major overhaul of RC4 performance on Intel P4, IA-64 and 630 AMD64. 631 o Changed the Configure script to have some algorithms disabled 632 by default. Those can be explicitly enabled with the new 633 argument form 'enable-xxx'. 634 o Change the default digest in 'openssl' commands from MD5 to 635 SHA-1. 636 o Added support for DTLS. 637 o New BIGNUM blinding. 638 o Added support for the RSA-PSS encryption scheme 639 o Added support for the RSA X.931 padding. 640 o Added support for BSD sockets on NetWare. 641 o Added support for files larger than 2GB. 642 o Added initial support for Win64. 643 o Added alternate pkg-config files. 644 645 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]: 646 647 o FIPS 1.1.1 module linking. 648 o Various ciphersuite selection fixes. 649 650 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]: 651 652 o Introduce limits to prevent malicious key DoS (CVE-2006-2940) 653 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343) 654 655 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]: 656 657 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339 658 659 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]: 660 661 o Visual C++ 2005 fixes. 662 o Update Windows build system for FIPS. 663 664 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]: 665 666 o Give EVP_MAX_MD_SIZE its old value, except for a FIPS build. 667 668 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]: 669 670 o Fix SSL 2.0 Rollback, CVE-2005-2969 671 o Allow use of fixed-length exponent on DSA signing 672 o Default fixed-window RSA, DSA, DH private-key operations 673 674 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]: 675 676 o More compilation issues fixed. 677 o Adaptation to more modern Kerberos API. 678 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin. 679 o Enhanced x86_64 assembler BIGNUM module. 680 o More constification. 681 o Added processing of proxy certificates (RFC 3820). 682 683 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]: 684 685 o Several compilation issues fixed. 686 o Many memory allocation failure checks added. 687 o Improved comparison of X509 Name type. 688 o Mandatory basic checks on certificates. 689 o Performance improvements. 690 691 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]: 692 693 o Fix race condition in CRL checking code. 694 o Fixes to PKCS#7 (S/MIME) code. 695 696 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]: 697 698 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug 699 o Security: Fix null-pointer assignment in do_change_cipher_spec() 700 o Allow multiple active certificates with same subject in CA index 701 o Multiple X509 verification fixes 702 o Speed up HMAC and other operations 703 704 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]: 705 706 o Security: fix various ASN1 parsing bugs. 707 o New -ignore_err option to OCSP utility. 708 o Various interop and bug fixes in S/MIME code. 709 o SSL/TLS protocol fix for unrequested client certificates. 710 711 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]: 712 713 o Security: counter the Klima-Pokorny-Rosa extension of 714 Bleichbacher's attack 715 o Security: make RSA blinding default. 716 o Configuration: Irix fixes, AIX fixes, better mingw support. 717 o Support for new platforms: linux-ia64-ecc. 718 o Build: shared library support fixes. 719 o ASN.1: treat domainComponent correctly. 720 o Documentation: fixes and additions. 721 722 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]: 723 724 o Security: Important security related bugfixes. 725 o Enhanced compatibility with MIT Kerberos. 726 o Can be built without the ENGINE framework. 727 o IA32 assembler enhancements. 728 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64. 729 o Configuration: the no-err option now works properly. 730 o SSL/TLS: now handles manual certificate chain building. 731 o SSL/TLS: certain session ID malfunctions corrected. 732 733 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]: 734 735 o New library section OCSP. 736 o Complete rewrite of ASN1 code. 737 o CRL checking in verify code and openssl utility. 738 o Extension copying in 'ca' utility. 739 o Flexible display options in 'ca' utility. 740 o Provisional support for international characters with UTF8. 741 o Support for external crypto devices ('engine') is no longer 742 a separate distribution. 743 o New elliptic curve library section. 744 o New AES (Rijndael) library section. 745 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit, 746 Linux x86_64, Linux 64-bit on Sparc v9 747 o Extended support for some platforms: VxWorks 748 o Enhanced support for shared libraries. 749 o Now only builds PIC code when shared library support is requested. 750 o Support for pkg-config. 751 o Lots of new manuals. 752 o Makes symbolic links to or copies of manuals to cover all described 753 functions. 754 o Change DES API to clean up the namespace (some applications link also 755 against libdes providing similar functions having the same name). 756 Provide macros for backward compatibility (will be removed in the 757 future). 758 o Unify handling of cryptographic algorithms (software and engine) 759 to be available via EVP routines for asymmetric and symmetric ciphers. 760 o NCONF: new configuration handling routines. 761 o Change API to use more 'const' modifiers to improve error checking 762 and help optimizers. 763 o Finally remove references to RSAref. 764 o Reworked parts of the BIGNUM code. 765 o Support for new engines: Broadcom ubsec, Accelerated Encryption 766 Processing, IBM 4758. 767 o A few new engines added in the demos area. 768 o Extended and corrected OID (object identifier) table. 769 o PRNG: query at more locations for a random device, automatic query for 770 EGD style random sources at several locations. 771 o SSL/TLS: allow optional cipher choice according to server's preference. 772 o SSL/TLS: allow server to explicitly set new session ids. 773 o SSL/TLS: support Kerberos cipher suites (RFC2712). 774 Only supports MIT Kerberos for now. 775 o SSL/TLS: allow more precise control of renegotiations and sessions. 776 o SSL/TLS: add callback to retrieve SSL/TLS messages. 777 o SSL/TLS: support AES cipher suites (RFC3268). 778 779 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]: 780 781 o Security: fix various ASN1 parsing bugs. 782 o SSL/TLS protocol fix for unrequested client certificates. 783 784 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]: 785 786 o Security: counter the Klima-Pokorny-Rosa extension of 787 Bleichbacher's attack 788 o Security: make RSA blinding default. 789 o Build: shared library support fixes. 790 791 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]: 792 793 o Important security related bugfixes. 794 795 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]: 796 797 o New configuration targets for Tandem OSS and A/UX. 798 o New OIDs for Microsoft attributes. 799 o Better handling of SSL session caching. 800 o Better comparison of distinguished names. 801 o Better handling of shared libraries in a mixed GNU/non-GNU environment. 802 o Support assembler code with Borland C. 803 o Fixes for length problems. 804 o Fixes for uninitialised variables. 805 o Fixes for memory leaks, some unusual crashes and some race conditions. 806 o Fixes for smaller building problems. 807 o Updates of manuals, FAQ and other instructive documents. 808 809 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]: 810 811 o Important building fixes on Unix. 812 813 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]: 814 815 o Various important bugfixes. 816 817 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]: 818 819 o Important security related bugfixes. 820 o Various SSL/TLS library bugfixes. 821 822 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]: 823 824 o Various SSL/TLS library bugfixes. 825 o Fix DH parameter generation for 'non-standard' generators. 826 827 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]: 828 829 o Various SSL/TLS library bugfixes. 830 o BIGNUM library fixes. 831 o RSA OAEP and random number generation fixes. 832 o Object identifiers corrected and added. 833 o Add assembler BN routines for IA64. 834 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8, 835 MIPS Linux; shared library support for Irix, HP-UX. 836 o Add crypto accelerator support for AEP, Baltimore SureWare, 837 Broadcom and Cryptographic Appliance's keyserver 838 [in 0.9.6c-engine release]. 839 840 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]: 841 842 o Security fix: PRNG improvements. 843 o Security fix: RSA OAEP check. 844 o Security fix: Reinsert and fix countermeasure to Bleichbacher's 845 attack. 846 o MIPS bug fix in BIGNUM. 847 o Bug fix in "openssl enc". 848 o Bug fix in X.509 printing routine. 849 o Bug fix in DSA verification routine and DSA S/MIME verification. 850 o Bug fix to make PRNG thread-safe. 851 o Bug fix in RAND_file_name(). 852 o Bug fix in compatibility mode trust settings. 853 o Bug fix in blowfish EVP. 854 o Increase default size for BIO buffering filter. 855 o Compatibility fixes in some scripts. 856 857 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]: 858 859 o Security fix: change behavior of OpenSSL to avoid using 860 environment variables when running as root. 861 o Security fix: check the result of RSA-CRT to reduce the 862 possibility of deducing the private key from an incorrectly 863 calculated signature. 864 o Security fix: prevent Bleichenbacher's DSA attack. 865 o Security fix: Zero the premaster secret after deriving the 866 master secret in DH ciphersuites. 867 o Reimplement SSL_peek(), which had various problems. 868 o Compatibility fix: the function des_encrypt() renamed to 869 des_encrypt1() to avoid clashes with some Unixen libc. 870 o Bug fixes for Win32, HP/UX and Irix. 871 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and 872 memory checking routines. 873 o Bug fixes for RSA operations in threaded environments. 874 o Bug fixes in misc. openssl applications. 875 o Remove a few potential memory leaks. 876 o Add tighter checks of BIGNUM routines. 877 o Shared library support has been reworked for generality. 878 o More documentation. 879 o New function BN_rand_range(). 880 o Add "-rand" option to openssl s_client and s_server. 881 882 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]: 883 884 o Some documentation for BIO and SSL libraries. 885 o Enhanced chain verification using key identifiers. 886 o New sign and verify options to 'dgst' application. 887 o Support for DER and PEM encoded messages in 'smime' application. 888 o New 'rsautl' application, low level RSA utility. 889 o MD4 now included. 890 o Bugfix for SSL rollback padding check. 891 o Support for external crypto devices [1]. 892 o Enhanced EVP interface. 893 894 [1] The support for external crypto devices is currently a separate 895 distribution. See the file README.ENGINE. 896 897 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]: 898 899 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 900 o Shared library support for HPUX and Solaris-gcc 901 o Support of Linux/IA64 902 o Assembler support for Mingw32 903 o New 'rand' application 904 o New way to check for existence of algorithms from scripts 905 906 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]: 907 908 o S/MIME support in new 'smime' command 909 o Documentation for the OpenSSL command line application 910 o Automation of 'req' application 911 o Fixes to make s_client, s_server work under Windows 912 o Support for multiple fieldnames in SPKACs 913 o New SPKAC command line utility and associated library functions 914 o Options to allow passwords to be obtained from various sources 915 o New public key PEM format and options to handle it 916 o Many other fixes and enhancements to command line utilities 917 o Usable certificate chain verification 918 o Certificate purpose checking 919 o Certificate trust settings 920 o Support of authority information access extension 921 o Extensions in certificate requests 922 o Simplified X509 name and attribute routines 923 o Initial (incomplete) support for international character sets 924 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD 925 o Read only memory BIOs and simplified creation function 926 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0 927 record; allow fragmentation and interleaving of handshake and other 928 data 929 o TLS/SSL code now "tolerates" MS SGC 930 o Work around for Netscape client certificate hang bug 931 o RSA_NULL option that removes RSA patent code but keeps other 932 RSA functionality 933 o Memory leak detection now allows applications to add extra information 934 via a per-thread stack 935 o PRNG robustness improved 936 o EGD support 937 o BIGNUM library bug fixes 938 o Faster DSA parameter generation 939 o Enhanced support for Alpha Linux 940 o Experimental MacOS support 941 942 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]: 943 944 o Transparent support for PKCS#8 format private keys: these are used 945 by several software packages and are more secure than the standard 946 form 947 o PKCS#5 v2.0 implementation 948 o Password callbacks have a new void * argument for application data 949 o Avoid various memory leaks 950 o New pipe-like BIO that allows using the SSL library when actual I/O 951 must be handled by the application (BIO pair) 952 953 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]: 954 o Lots of enhancements and cleanups to the Configuration mechanism 955 o RSA OEAP related fixes 956 o Added `openssl ca -revoke' option for revoking a certificate 957 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs 958 o Source tree cleanups: removed lots of obsolete files 959 o Thawte SXNet, certificate policies and CRL distribution points 960 extension support 961 o Preliminary (experimental) S/MIME support 962 o Support for ASN.1 UTF8String and VisibleString 963 o Full integration of PKCS#12 code 964 o Sparc assembler bignum implementation, optimized hash functions 965 o Option to disable selected ciphers 966 967 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]: 968 o Fixed a security hole related to session resumption 969 o Fixed RSA encryption routines for the p < q case 970 o "ALL" in cipher lists now means "everything except NULL ciphers" 971 o Support for Triple-DES CBCM cipher 972 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA 973 o First support for new TLSv1 ciphers 974 o Added a few new BIOs (syslog BIO, reliable BIO) 975 o Extended support for DSA certificate/keys. 976 o Extended support for Certificate Signing Requests (CSR) 977 o Initial support for X.509v3 extensions 978 o Extended support for compression inside the SSL record layer 979 o Overhauled Win32 builds 980 o Cleanups and fixes to the Big Number (BN) library 981 o Support for ASN.1 GeneralizedTime 982 o Splitted ASN.1 SETs from SEQUENCEs 983 o ASN1 and PEM support for Netscape Certificate Sequences 984 o Overhauled Perl interface 985 o Lots of source tree cleanups. 986 o Lots of memory leak fixes. 987 o Lots of bug fixes. 988 989 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]: 990 o Integration of the popular NO_RSA/NO_DSA patches 991 o Initial support for compression inside the SSL record layer 992 o Added BIO proxy and filtering functionality 993 o Extended Big Number (BN) library 994 o Added RIPE MD160 message digest 995 o Added support for RC2/64bit cipher 996 o Extended ASN.1 parser routines 997 o Adjustments of the source tree for CVS 998 o Support for various new platforms 999