4 This file gives a brief overview of the major changes between each OpenSSL
5 release. For more details please read the CHANGES file.
10 - [OpenSSL 3.3](#openssl-33)
11 - [OpenSSL 3.2](#openssl-32)
12 - [OpenSSL 3.1](#openssl-31)
13 - [OpenSSL 3.0](#openssl-30)
14 - [OpenSSL 1.1.1](#openssl-111)
15 - [OpenSSL 1.1.0](#openssl-110)
16 - [OpenSSL 1.0.2](#openssl-102)
17 - [OpenSSL 1.0.1](#openssl-101)
18 - [OpenSSL 1.0.0](#openssl-100)
19 - [OpenSSL 0.9.x](#openssl-09x)
24 ### Major changes between OpenSSL 3.2 and OpenSSL 3.3 [under development]
26 * Added exporter for CMake on Unix and Windows, alongside the pkg-config
32 ### Major changes between OpenSSL 3.2.0 and OpenSSL 3.2.1 [under development]
34 OpenSSL 3.2.1 is a security patch release. The most severe CVE fixed in this
37 This release incorporates the following bug fixes and mitigations:
39 * Fixed PKCS12 Decoding crashes
41 * Fixed excessive time spent checking invalid RSA public keys
43 * Fixed POLY1305 MAC implementation corrupting vector registers on PowerPC
44 CPUs which support PowerISA 2.07
47 ### Major changes between OpenSSL 3.1 and OpenSSL 3.2.0 [23 Nov 2023]
49 OpenSSL 3.2.0 is a feature release adding significant new functionality to
52 This release incorporates the following potentially significant or incompatible
55 * The default SSL/TLS security level has been changed from 1 to 2.
57 * The `x509`, `ca`, and `req` apps now always produce X.509v3 certificates.
59 * Subject or issuer names in X.509 objects are now displayed as UTF-8 strings
62 This release adds the following new features:
64 * Support for client side QUIC, including support for
65 multiple streams (RFC 9000)
67 * Support for Ed25519ctx, Ed25519ph and Ed448ph in addition
68 to existing support for Ed25519 and Ed448 (RFC 8032)
70 * Support for deterministic ECDSA signatures (RFC 6979)
72 * Support for AES-GCM-SIV, a nonce-misuse-resistant AEAD (RFC 8452)
74 * Support for the Argon2 KDF, along with supporting thread pool
75 functionality (RFC 9106)
77 * Support for Hybrid Public Key Encryption (HPKE) (RFC 9180)
81 * Support for Brainpool curves in TLS 1.3
83 * Support for TLS Raw Public Keys (RFC 7250)
85 * Support for TCP Fast Open on Linux, macOS and FreeBSD,
86 where enabled and supported (RFC 7413)
88 * Support for TLS certificate compression, including library
89 support for zlib, Brotli and zstd (RFC 8879)
91 * Support for provider-based pluggable signature algorithms
92 in TLS 1.3 with supporting CMS and X.509 functionality
94 With a suitable provider this enables the use of post-quantum/quantum-safe
97 * Support for using the Windows system certificate store as a source of
98 trusted root certificates
100 This is not yet enabled by default and must be activated using an
101 environment variable. This is likely to become enabled by default
102 in a future feature release.
104 * Support for using the IANA standard names in TLS ciphersuite configuration
106 * Multiple new features and improvements to CMP protocol support
108 The following known issues are present in this release and will be rectified
111 * Provider-based signature algorithms cannot be configured using the
112 SignatureAlgorithms configuration file parameter (#22761)
114 This release incorporates the following documentation enhancements:
116 * Added multiple tutorials on the OpenSSL library and in particular
117 on writing various clients (using TLS and QUIC protocols) with libssl
121 This release incorporates the following bug fixes and mitigations:
123 * Fixed excessive time spent in DH check / generation with large Q parameter
127 A more detailed list of changes in this release can be found in the
130 Users interested in using the new QUIC functionality are encouraged to read the
131 [README file for QUIC][README-QUIC.md], which provides links to relevant
132 documentation and example code.
134 As always, bug reports and issues relating to OpenSSL can be [filed on our issue
135 tracker][issue tracker].
140 ### Major changes between OpenSSL 3.1.3 and OpenSSL 3.1.4 [24 Oct 2023]
142 * Mitigate incorrect resize handling for symmetric cipher keys and IVs.
145 ### Major changes between OpenSSL 3.1.2 and OpenSSL 3.1.3 [19 Sep 2023]
147 * Fix POLY1305 MAC implementation corrupting XMM registers on Windows
150 ### Major changes between OpenSSL 3.1.1 and OpenSSL 3.1.2 [1 Aug 2023]
152 * Fix excessive time spent checking DH q parameter value ([CVE-2023-3817])
153 * Fix DH_check() excessive time with over sized modulus ([CVE-2023-3446])
154 * Do not ignore empty associated data entries with AES-SIV ([CVE-2023-2975])
155 * When building with the `enable-fips` option and using the resulting
156 FIPS provider, TLS 1.2 will, by default, mandate the use of an
157 extended master secret and the Hash and HMAC DRBGs will not operate
158 with truncated digests.
160 ### Major changes between OpenSSL 3.1.0 and OpenSSL 3.1.1 [30 May 2023]
162 * Mitigate for very slow `OBJ_obj2txt()` performance with gigantic OBJECT
163 IDENTIFIER sub-identities. ([CVE-2023-2650])
164 * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms
166 * Fixed documentation of X509_VERIFY_PARAM_add0_policy() ([CVE-2023-0466])
167 * Fixed handling of invalid certificate policies in leaf certificates
169 * Limited the number of nodes created in a policy tree ([CVE-2023-0464])
171 ### Major changes between OpenSSL 3.0 and OpenSSL 3.1.0 [14 Mar 2023]
173 * SSL 3, TLS 1.0, TLS 1.1, and DTLS 1.0 only work at security level 0.
174 * Performance enhancements and new platform support including new
175 assembler code algorithm implementations.
176 * Deprecated LHASH statistics functions.
177 * FIPS 140-3 compliance changes.
182 ### Major changes between OpenSSL 3.0.7 and OpenSSL 3.0.8 [7 Feb 2023]
184 * Fixed NULL dereference during PKCS7 data verification ([CVE-2023-0401])
185 * Fixed X.400 address type confusion in X.509 GeneralName ([CVE-2023-0286])
186 * Fixed NULL dereference validating DSA public key ([CVE-2023-0217])
187 * Fixed Invalid pointer dereference in d2i_PKCS7 functions ([CVE-2023-0216])
188 * Fixed Use-after-free following BIO_new_NDEF ([CVE-2023-0215])
189 * Fixed Double free after calling PEM_read_bio_ex ([CVE-2022-4450])
190 * Fixed Timing Oracle in RSA Decryption ([CVE-2022-4304])
191 * Fixed X.509 Name Constraints Read Buffer Overflow ([CVE-2022-4203])
192 * Fixed X.509 Policy Constraints Double Locking ([CVE-2022-3996])
194 ### Major changes between OpenSSL 3.0.6 and OpenSSL 3.0.7 [1 Nov 2022]
196 * Added RIPEMD160 to the default provider.
197 * Fixed regressions introduced in 3.0.6 version.
198 * Fixed two buffer overflows in punycode decoding functions.
199 ([CVE-2022-3786]) and ([CVE-2022-3602])
201 ### Major changes between OpenSSL 3.0.5 and OpenSSL 3.0.6 [11 Oct 2022]
203 * Fix for custom ciphers to prevent accidental use of NULL encryption
206 ### Major changes between OpenSSL 3.0.4 and OpenSSL 3.0.5 [5 Jul 2022]
208 * Fixed heap memory corruption with RSA private key operation
210 * Fixed AES OCB failure to encrypt some bytes on 32-bit x86 platforms
213 ### Major changes between OpenSSL 3.0.3 and OpenSSL 3.0.4 [21 Jun 2022]
215 * Fixed additional bugs in the c_rehash script which was not properly
216 sanitising shell metacharacters to prevent command injection
219 ### Major changes between OpenSSL 3.0.2 and OpenSSL 3.0.3 [3 May 2022]
221 * Fixed a bug in the c_rehash script which was not properly sanitising shell
222 metacharacters to prevent command injection ([CVE-2022-1292])
223 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer
224 certificate on an OCSP response ([CVE-2022-1343])
225 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the
226 AAD data as the MAC key ([CVE-2022-1434])
227 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory
228 occupied by the removed hash table entries ([CVE-2022-1473])
230 ### Major changes between OpenSSL 3.0.1 and OpenSSL 3.0.2 [15 Mar 2022]
232 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever
233 for non-prime moduli ([CVE-2022-0778])
235 ### Major changes between OpenSSL 3.0.0 and OpenSSL 3.0.1 [14 Dec 2021]
237 * Fixed invalid handling of X509_verify_cert() internal errors in libssl
239 * Allow fetching an operation from the provider that owns an unexportable key
240 as a fallback if that is still allowed by the property query.
242 ### Major changes between OpenSSL 1.1.1 and OpenSSL 3.0.0 [7 sep 2021]
244 * Enhanced 'openssl list' with many new options.
245 * Added migration guide to man7.
246 * Implemented support for fully "pluggable" TLSv1.3 groups.
247 * Added support for Kernel TLS (KTLS).
248 * Changed the license to the Apache License v2.0.
249 * Moved all variations of the EVP ciphers CAST5, BF, IDEA, SEED, RC2,
250 RC4, RC5, and DES to the legacy provider.
251 * Moved the EVP digests MD2, MD4, MDC2, WHIRLPOOL and RIPEMD-160 to the legacy
253 * Added convenience functions for generating asymmetric key pairs.
254 * Deprecated the `OCSP_REQ_CTX` type and functions.
255 * Deprecated the `EC_KEY` and `EC_KEY_METHOD` types and functions.
256 * Deprecated the `RSA` and `RSA_METHOD` types and functions.
257 * Deprecated the `DSA` and `DSA_METHOD` types and functions.
258 * Deprecated the `DH` and `DH_METHOD` types and functions.
259 * Deprecated the `ERR_load_` functions.
260 * Remove the `RAND_DRBG` API.
261 * Deprecated the `ENGINE` API.
262 * Added `OSSL_LIB_CTX`, a libcrypto library context.
263 * Added various `_ex` functions to the OpenSSL API that support using
264 a non-default `OSSL_LIB_CTX`.
265 * Interactive mode is removed from the 'openssl' program.
266 * The X25519, X448, Ed25519, Ed448, SHAKE128 and SHAKE256 algorithms are
267 included in the FIPS provider.
268 * X509 certificates signed using SHA1 are no longer allowed at security
269 level 1 or higher. The default security level for TLS is 1, so
270 certificates signed using SHA1 are by default no longer trusted to
271 authenticate servers or clients.
272 * enable-crypto-mdebug and enable-crypto-mdebug-backtrace were mostly
273 disabled; the project uses address sanitize/leak-detect instead.
274 * Added a Certificate Management Protocol (CMP, RFC 4210) implementation
275 also covering CRMF (RFC 4211) and HTTP transfer (RFC 6712).
276 It is part of the crypto lib and adds a 'cmp' app with a demo configuration.
277 All widely used CMP features are supported for both clients and servers.
278 * Added a proper HTTP client supporting GET with optional redirection, POST,
279 arbitrary request and response content types, TLS, persistent connections,
280 connections via HTTP(s) proxies, connections and exchange via user-defined
281 BIOs (allowing implicit connections), and timeout checks.
282 * Added util/check-format.pl for checking adherence to the coding guidelines.
283 * Added OSSL_ENCODER, a generic encoder API.
284 * Added OSSL_DECODER, a generic decoder API.
285 * Added OSSL_PARAM_BLD, an easier to use API to OSSL_PARAM.
286 * Added error raising macros, ERR_raise() and ERR_raise_data().
287 * Deprecated ERR_put_error(), ERR_get_error_line(), ERR_get_error_line_data(),
288 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and
289 ERR_func_error_string().
290 * Added OSSL_PROVIDER_available(), to check provider availability.
291 * Added 'openssl mac' that uses the EVP_MAC API.
292 * Added 'openssl kdf' that uses the EVP_KDF API.
293 * Add OPENSSL_info() and 'openssl info' to get built-in data.
294 * Add support for enabling instrumentation through trace and debug
296 * Changed our version number scheme and set the next major release to
298 * Added EVP_MAC, an EVP layer MAC API, and a generic EVP_PKEY to EVP_MAC
299 bridge. Supported MACs are: BLAKE2, CMAC, GMAC, HMAC, KMAC, POLY1305
301 * Removed the heartbeat message in DTLS feature.
302 * Added EVP_KDF, an EVP layer KDF and PRF API, and a generic EVP_PKEY to
303 EVP_KDF bridge. Supported KDFs are: HKDF, KBKDF, KRB5 KDF, PBKDF2,
304 PKCS12 KDF, SCRYPT, SSH KDF, SSKDF, TLS1 PRF, X9.42 KDF and X9.63 KDF.
305 * All of the low-level MD2, MD4, MD5, MDC2, RIPEMD160, SHA1, SHA224,
306 SHA256, SHA384, SHA512 and Whirlpool digest functions have been
308 * All of the low-level AES, Blowfish, Camellia, CAST, DES, IDEA, RC2,
309 RC4, RC5 and SEED cipher functions have been deprecated.
310 * All of the low-level DH, DSA, ECDH, ECDSA and RSA public key functions
311 have been deprecated.
312 * SSL 3, TLS 1.0, TLS 1.1, and DTLS 1.0 only work at security level 0,
313 except when RSA key exchange without SHA1 is used.
314 * Added providers, a new pluggability concept that will replace the
315 ENGINE API and ENGINE implementations.
320 ### Major changes between OpenSSL 1.1.1k and OpenSSL 1.1.1l [24 Aug 2021]
322 * Fixed an SM2 Decryption Buffer Overflow ([CVE-2021-3711])
323 * Fixed various read buffer overruns processing ASN.1 strings ([CVE-2021-3712])
325 ### Major changes between OpenSSL 1.1.1j and OpenSSL 1.1.1k [25 Mar 2021]
327 * Fixed a problem with verifying a certificate chain when using the
328 X509_V_FLAG_X509_STRICT flag ([CVE-2021-3450])
329 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously
330 crafted renegotiation ClientHello message from a client ([CVE-2021-3449])
332 ### Major changes between OpenSSL 1.1.1i and OpenSSL 1.1.1j [16 Feb 2021]
334 * Fixed a NULL pointer deref in the X509_issuer_and_serial_hash()
335 function ([CVE-2021-23841])
336 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING
337 padding mode to correctly check for rollback attacks
338 * Fixed an overflow in the EVP_CipherUpdate, EVP_EncryptUpdate and
339 EVP_DecryptUpdate functions ([CVE-2021-23840])
340 * Fixed SRP_Calc_client_key so that it runs in constant time
342 ### Major changes between OpenSSL 1.1.1h and OpenSSL 1.1.1i [8 Dec 2020]
344 * Fixed NULL pointer deref in GENERAL_NAME_cmp ([CVE-2020-1971])
346 ### Major changes between OpenSSL 1.1.1g and OpenSSL 1.1.1h [22 Sep 2020]
348 * Disallow explicit curve parameters in verifications chains when
349 X509_V_FLAG_X509_STRICT is used
350 * Enable 'MinProtocol' and 'MaxProtocol' to configure both TLS and DTLS
352 * Oracle Developer Studio will start reporting deprecation warnings
354 ### Major changes between OpenSSL 1.1.1f and OpenSSL 1.1.1g [21 Apr 2020]
356 * Fixed segmentation fault in SSL_check_chain() ([CVE-2020-1967])
358 ### Major changes between OpenSSL 1.1.1e and OpenSSL 1.1.1f [31 Mar 2020]
360 * Revert the unexpected EOF reporting via SSL_ERROR_SSL
362 ### Major changes between OpenSSL 1.1.1d and OpenSSL 1.1.1e [17 Mar 2020]
364 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure
365 used in exponentiation with 512-bit moduli ([CVE-2019-1551])
367 ### Major changes between OpenSSL 1.1.1c and OpenSSL 1.1.1d [10 Sep 2019]
369 * Fixed a fork protection issue ([CVE-2019-1549])
370 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
372 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
373 used even when parsing explicit parameters
374 * Compute ECC cofactors if not provided during EC_GROUP construction
376 * Early start up entropy quality from the DEVRANDOM seed source has been
377 improved for older Linux systems
378 * Correct the extended master secret constant on EBCDIC systems
379 * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
380 * Changed DH_check to accept parameters with order q and 2q subgroups
381 * Significantly reduce secure memory usage by the randomness pools
382 * Revert the DEVRANDOM_WAIT feature for Linux systems
384 ### Major changes between OpenSSL 1.1.1b and OpenSSL 1.1.1c [28 May 2019]
386 * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
388 ### Major changes between OpenSSL 1.1.1a and OpenSSL 1.1.1b [26 Feb 2019]
390 * Change the info callback signals for the start and end of a post-handshake
391 message exchange in TLSv1.3.
392 * Fix a bug in DTLS over SCTP. This breaks interoperability with older
393 versions of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2.
395 ### Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018]
397 * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
398 * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
400 ### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.1 [11 Sep 2018]
402 * Support for TLSv1.3 added. The TLSv1.3 implementation includes:
403 * Fully compliant implementation of RFC8446 (TLSv1.3) on by default
405 * Post-handshake authentication and key update
406 * Middlebox Compatibility Mode
408 * Support for all five RFC8446 ciphersuites
409 * RSA-PSS signature algorithms (backported to TLSv1.2)
410 * Configurable session ticket support
411 * Stateless server support
412 * Rewrite of the packet construction code for "safer" packet handling
413 * Rewrite of the extension handling code
414 For further important information, see the [TLS1.3 page](
415 https://wiki.openssl.org/index.php/TLS1.3) in the OpenSSL Wiki.
417 * Complete rewrite of the OpenSSL random number generator to introduce the
418 following capabilities
419 * The default RAND method now utilizes an AES-CTR DRBG according to
420 NIST standard SP 800-90Ar1.
421 * Support for multiple DRBG instances with seed chaining.
422 * There is a public and private DRBG instance.
423 * The DRBG instances are fork-safe.
424 * Keep all global DRBG instances on the secure heap if it is enabled.
425 * The public and private DRBG instance are per thread for lock free
427 * Support for various new cryptographic algorithms including:
429 * SHA512/224 and SHA512/256
430 * EdDSA (both Ed25519 and Ed448) including X509 and TLS support
431 * X448 (adding to the existing X25519 support in 1.1.0)
437 * ARIA (including TLS support)
438 * Significant Side-Channel attack security improvements
439 * Add a new ClientHello callback to provide the ability to adjust the SSL
440 object at an early stage.
441 * Add 'Maximum Fragment Length' TLS extension negotiation and support
442 * A new STORE module, which implements a uniform and URI based reader of
443 stores that can contain keys, certificates, CRLs and numerous other
445 * Move the display of configuration data to configdata.pm.
446 * Allow GNU style "make variables" to be used with Configure.
447 * Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes
448 * Rewrite of devcrypto engine
453 ### Major changes between OpenSSL 1.1.0k and OpenSSL 1.1.0l [10 Sep 2019]
455 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
457 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
458 used even when parsing explicit parameters
459 * Compute ECC cofactors if not provided during EC_GROUP construction
461 * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
463 ### Major changes between OpenSSL 1.1.0j and OpenSSL 1.1.0k [28 May 2019]
465 * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
467 ### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.0j [20 Nov 2018]
469 * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
470 * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
472 ### Major changes between OpenSSL 1.1.0h and OpenSSL 1.1.0i [14 Aug 2018]
474 * Client DoS due to large DH parameter ([CVE-2018-0732])
475 * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
477 ### Major changes between OpenSSL 1.1.0g and OpenSSL 1.1.0h [27 Mar 2018]
479 * Constructed ASN.1 types with a recursive definition could exceed the
480 stack ([CVE-2018-0739])
481 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC ([CVE-2018-0733])
482 * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
484 ### Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.0g [2 Nov 2017]
486 * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
487 * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
489 ### Major changes between OpenSSL 1.1.0e and OpenSSL 1.1.0f [25 May 2017]
491 * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
493 ### Major changes between OpenSSL 1.1.0d and OpenSSL 1.1.0e [16 Feb 2017]
495 * Encrypt-Then-Mac renegotiation crash ([CVE-2017-3733])
497 ### Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017]
499 * Truncated packet could crash via OOB read ([CVE-2017-3731])
500 * Bad (EC)DHE parameters cause a client crash ([CVE-2017-3730])
501 * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
503 ### Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016]
505 * ChaCha20/Poly1305 heap-buffer-overflow ([CVE-2016-7054])
506 * CMS Null dereference ([CVE-2016-7053])
507 * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
509 ### Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016]
511 * Fix Use After Free for large message sizes ([CVE-2016-6309])
513 ### Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016]
515 * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
516 * SSL_peek() hang on empty record ([CVE-2016-6305])
517 * Excessive allocation of memory in tls_get_message_header()
519 * Excessive allocation of memory in dtls1_preprocess_fragment()
522 ### Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016]
524 * Copyright text was shrunk to a boilerplate that points to the license
525 * "shared" builds are now the default when possible
526 * Added support for "pipelining"
527 * Added the AFALG engine
528 * New threading API implemented
529 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl
530 * Support for extended master secret
532 * Reworked test suite, now based on perl, Test::Harness and Test::More
533 * *Most* libcrypto and libssl public structures were made opaque,
535 BIGNUM and associated types, EC_KEY and EC_KEY_METHOD,
536 DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD,
537 BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX,
538 EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX,
539 X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE,
540 X509_LOOKUP, X509_LOOKUP_METHOD
541 * libssl internal structures made opaque
542 * SSLv2 support removed
543 * Kerberos ciphersuite support removed
544 * RC4 removed from DEFAULT ciphersuites in libssl
545 * 40 and 56 bit cipher support removed from libssl
546 * All public header files moved to include/openssl, no more symlinking
547 * SSL/TLS state machine, version negotiation and record layer rewritten
548 * EC revision: now operations use new EC_KEY_METHOD.
549 * Support for OCB mode added to libcrypto
550 * Support for asynchronous crypto operations added to libcrypto and libssl
551 * Deprecated interfaces can now be disabled at build time either
552 relative to the latest release via the "no-deprecated" Configure
553 argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
554 * Application software can be compiled with -DOPENSSL_API_COMPAT=version
555 to ensure that features deprecated in that version are not exposed.
556 * Support for RFC6698/RFC7671 DANE TLSA peer authentication
557 * Change of Configure to use --prefix as the main installation
558 directory location rather than --openssldir. The latter becomes
559 the directory for certs, private key and openssl.cnf exclusively.
560 * Reworked BIO networking library, with full support for IPv6.
561 * New "unified" build system
562 * New security levels
563 * Support for scrypt algorithm
565 * Extended SSL_CONF support using configuration files
566 * KDF algorithm support. Implement TLS PRF as a KDF.
567 * Support for Certificate Transparency
573 ### Major changes between OpenSSL 1.0.2s and OpenSSL 1.0.2t [10 Sep 2019]
575 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
577 * For built-in EC curves, ensure an EC_GROUP built from the curve name is
578 used even when parsing explicit parameters
579 * Compute ECC cofactors if not provided during EC_GROUP construction
581 * Document issue with installation paths in diverse Windows builds
584 ### Major changes between OpenSSL 1.0.2r and OpenSSL 1.0.2s [28 May 2019]
588 ### Major changes between OpenSSL 1.0.2q and OpenSSL 1.0.2r [26 Feb 2019]
590 * 0-byte record padding oracle ([CVE-2019-1559])
592 ### Major changes between OpenSSL 1.0.2p and OpenSSL 1.0.2q [20 Nov 2018]
594 * Microarchitecture timing vulnerability in ECC scalar multiplication ([CVE-2018-5407])
595 * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
597 ### Major changes between OpenSSL 1.0.2o and OpenSSL 1.0.2p [14 Aug 2018]
599 * Client DoS due to large DH parameter ([CVE-2018-0732])
600 * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
602 ### Major changes between OpenSSL 1.0.2n and OpenSSL 1.0.2o [27 Mar 2018]
604 * Constructed ASN.1 types with a recursive definition could exceed the
605 stack ([CVE-2018-0739])
607 ### Major changes between OpenSSL 1.0.2m and OpenSSL 1.0.2n [7 Dec 2017]
609 * Read/write after SSL object in error state ([CVE-2017-3737])
610 * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
612 ### Major changes between OpenSSL 1.0.2l and OpenSSL 1.0.2m [2 Nov 2017]
614 * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
615 * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
617 ### Major changes between OpenSSL 1.0.2k and OpenSSL 1.0.2l [25 May 2017]
619 * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
621 ### Major changes between OpenSSL 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
623 * Truncated packet could crash via OOB read ([CVE-2017-3731])
624 * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
625 * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
627 ### Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
629 * Missing CRL sanity check ([CVE-2016-7052])
631 ### Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
633 * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
634 * SWEET32 Mitigation ([CVE-2016-2183])
635 * OOB write in MDC2_Update() ([CVE-2016-6303])
636 * Malformed SHA512 ticket DoS ([CVE-2016-6302])
637 * OOB write in BN_bn2dec() ([CVE-2016-2182])
638 * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
639 * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
640 * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
641 * DTLS buffered message DoS ([CVE-2016-2179])
642 * DTLS replay protection DoS ([CVE-2016-2181])
643 * Certificate message OOB reads ([CVE-2016-6306])
645 ### Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
647 * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
648 * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
649 * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
650 * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
651 * EBCDIC overread ([CVE-2016-2176])
652 * Modify behavior of ALPN to invoke callback after SNI/servername
653 callback, such that updates to the SSL_CTX affect ALPN.
654 * Remove LOW from the DEFAULT cipher list. This removes singles DES from
656 * Only remove the SSLv2 methods with the no-ssl2-method option.
658 ### Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
660 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
661 * Disable SSLv2 default build, default negotiation and weak ciphers
663 * Fix a double-free in DSA code ([CVE-2016-0705])
664 * Disable SRP fake user seed to address a server memory leak
666 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
668 * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
669 * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
671 ### Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
673 * DH small subgroups ([CVE-2016-0701])
674 * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
676 ### Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
678 * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2015-3193])
679 * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
680 * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
681 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
682 * In DSA_generate_parameters_ex, if the provided seed is too short,
685 ### Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
687 * Alternate chains certificate forgery ([CVE-2015-1793])
688 * Race condition handling PSK identify hint ([CVE-2015-3196])
690 ### Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
692 * Fix HMAC ABI incompatibility
694 ### Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
696 * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
697 * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
698 * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
699 * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
700 * Race condition handling NewSessionTicket ([CVE-2015-1791])
702 ### Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
704 * OpenSSL 1.0.2 ClientHello sigalgs DoS fix ([CVE-2015-0291])
705 * Multiblock corrupted pointer fix ([CVE-2015-0290])
706 * Segmentation fault in DTLSv1_listen fix ([CVE-2015-0207])
707 * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
708 * Segmentation fault for invalid PSS parameters fix ([CVE-2015-0208])
709 * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
710 * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
711 * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
712 * Empty CKE with client auth and DHE fix ([CVE-2015-1787])
713 * Handshake with unseeded PRNG fix ([CVE-2015-0285])
714 * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
715 * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
716 * Removed the export ciphers from the DEFAULT ciphers
718 ### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]
720 * Suite B support for TLS 1.2 and DTLS 1.2
721 * Support for DTLS 1.2
722 * TLS automatic EC curve selection.
723 * API to set TLS supported signature algorithms and curves
724 * SSL_CONF configuration API.
725 * TLS Brainpool support.
727 * CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
732 ### Major changes between OpenSSL 1.0.1t and OpenSSL 1.0.1u [22 Sep 2016]
734 * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
735 * SWEET32 Mitigation ([CVE-2016-2183])
736 * OOB write in MDC2_Update() ([CVE-2016-6303])
737 * Malformed SHA512 ticket DoS ([CVE-2016-6302])
738 * OOB write in BN_bn2dec() ([CVE-2016-2182])
739 * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
740 * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
741 * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
742 * DTLS buffered message DoS ([CVE-2016-2179])
743 * DTLS replay protection DoS ([CVE-2016-2181])
744 * Certificate message OOB reads ([CVE-2016-6306])
746 ### Major changes between OpenSSL 1.0.1s and OpenSSL 1.0.1t [3 May 2016]
748 * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
749 * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
750 * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
751 * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
752 * EBCDIC overread ([CVE-2016-2176])
753 * Modify behavior of ALPN to invoke callback after SNI/servername
754 callback, such that updates to the SSL_CTX affect ALPN.
755 * Remove LOW from the DEFAULT cipher list. This removes singles DES from
757 * Only remove the SSLv2 methods with the no-ssl2-method option.
759 ### Major changes between OpenSSL 1.0.1r and OpenSSL 1.0.1s [1 Mar 2016]
761 * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
762 * Disable SSLv2 default build, default negotiation and weak ciphers
764 * Fix a double-free in DSA code ([CVE-2016-0705])
765 * Disable SRP fake user seed to address a server memory leak
767 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
769 * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
770 * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
772 ### Major changes between OpenSSL 1.0.1q and OpenSSL 1.0.1r [28 Jan 2016]
774 * Protection for DH small subgroup attacks
775 * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
777 ### Major changes between OpenSSL 1.0.1p and OpenSSL 1.0.1q [3 Dec 2015]
779 * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
780 * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
781 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
782 * In DSA_generate_parameters_ex, if the provided seed is too short,
785 ### Major changes between OpenSSL 1.0.1o and OpenSSL 1.0.1p [9 Jul 2015]
787 * Alternate chains certificate forgery ([CVE-2015-1793])
788 * Race condition handling PSK identify hint ([CVE-2015-3196])
790 ### Major changes between OpenSSL 1.0.1n and OpenSSL 1.0.1o [12 Jun 2015]
792 * Fix HMAC ABI incompatibility
794 ### Major changes between OpenSSL 1.0.1m and OpenSSL 1.0.1n [11 Jun 2015]
796 * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
797 * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
798 * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
799 * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
800 * Race condition handling NewSessionTicket ([CVE-2015-1791])
802 ### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.1m [19 Mar 2015]
804 * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
805 * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
806 * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
807 * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
808 * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
809 * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
810 * Removed the export ciphers from the DEFAULT ciphers
812 ### Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
814 * Build fixes for the Windows and OpenVMS platforms
816 ### Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
818 * Fix for [CVE-2014-3571]
819 * Fix for [CVE-2015-0206]
820 * Fix for [CVE-2014-3569]
821 * Fix for [CVE-2014-3572]
822 * Fix for [CVE-2015-0204]
823 * Fix for [CVE-2015-0205]
824 * Fix for [CVE-2014-8275]
825 * Fix for [CVE-2014-3570]
827 ### Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
829 * Fix for [CVE-2014-3513]
830 * Fix for [CVE-2014-3567]
831 * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
832 * Fix for [CVE-2014-3568]
834 ### Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
836 * Fix for [CVE-2014-3512]
837 * Fix for [CVE-2014-3511]
838 * Fix for [CVE-2014-3510]
839 * Fix for [CVE-2014-3507]
840 * Fix for [CVE-2014-3506]
841 * Fix for [CVE-2014-3505]
842 * Fix for [CVE-2014-3509]
843 * Fix for [CVE-2014-5139]
844 * Fix for [CVE-2014-3508]
846 ### Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
848 * Fix for [CVE-2014-0224]
849 * Fix for [CVE-2014-0221]
850 * Fix for [CVE-2014-0198]
851 * Fix for [CVE-2014-0195]
852 * Fix for [CVE-2014-3470]
853 * Fix for [CVE-2010-5298]
855 ### Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
857 * Fix for [CVE-2014-0160]
858 * Add TLS padding extension workaround for broken servers.
859 * Fix for [CVE-2014-0076]
861 ### Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
863 * Don't include gmt_unix_time in TLS server and client random values
864 * Fix for TLS record tampering bug ([CVE-2013-4353])
865 * Fix for TLS version checking bug ([CVE-2013-6449])
866 * Fix for DTLS retransmission bug ([CVE-2013-6450])
868 ### Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]
870 * Corrected fix for ([CVE-2013-0169])
872 ### Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]
874 * Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
875 * Include the fips configuration module.
876 * Fix OCSP bad key DoS attack ([CVE-2013-0166])
877 * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
878 * Fix for TLS AESNI record handling flaw ([CVE-2012-2686])
880 ### Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]
882 * Fix TLS/DTLS record length checking bug ([CVE-2012-2333])
883 * Don't attempt to use non-FIPS composite ciphers in FIPS mode.
885 ### Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]
887 * Fix compilation error on non-x86 platforms.
888 * Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
889 * Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
891 ### Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]
893 * Fix for ASN1 overflow bug ([CVE-2012-2110])
894 * Workarounds for some servers that hang on long client hellos.
895 * Fix SEGV in AES code.
897 ### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]
899 * TLS/DTLS heartbeat support.
901 * RFC 5705 TLS key material exporter.
902 * RFC 5764 DTLS-SRTP negotiation.
903 * Next Protocol Negotiation.
904 * PSS signatures in certificates, requests and CRLs.
905 * Support for password based recipient info for CMS.
906 * Support TLS v1.2 and TLS v1.1.
907 * Preliminary FIPS capability for unvalidated 2.0 FIPS module.
913 ### Major changes between OpenSSL 1.0.0s and OpenSSL 1.0.0t [3 Dec 2015]
915 * X509_ATTRIBUTE memory leak (([CVE-2015-3195]))
916 * Race condition handling PSK identify hint ([CVE-2015-3196])
918 ### Major changes between OpenSSL 1.0.0r and OpenSSL 1.0.0s [11 Jun 2015]
920 * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
921 * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
922 * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
923 * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
924 * Race condition handling NewSessionTicket ([CVE-2015-1791])
926 ### Major changes between OpenSSL 1.0.0q and OpenSSL 1.0.0r [19 Mar 2015]
928 * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
929 * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
930 * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
931 * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
932 * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
933 * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
934 * Removed the export ciphers from the DEFAULT ciphers
936 ### Major changes between OpenSSL 1.0.0p and OpenSSL 1.0.0q [15 Jan 2015]
938 * Build fixes for the Windows and OpenVMS platforms
940 ### Major changes between OpenSSL 1.0.0o and OpenSSL 1.0.0p [8 Jan 2015]
942 * Fix for [CVE-2014-3571]
943 * Fix for [CVE-2015-0206]
944 * Fix for [CVE-2014-3569]
945 * Fix for [CVE-2014-3572]
946 * Fix for [CVE-2015-0204]
947 * Fix for [CVE-2015-0205]
948 * Fix for [CVE-2014-8275]
949 * Fix for [CVE-2014-3570]
951 ### Major changes between OpenSSL 1.0.0n and OpenSSL 1.0.0o [15 Oct 2014]
953 * Fix for [CVE-2014-3513]
954 * Fix for [CVE-2014-3567]
955 * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
956 * Fix for [CVE-2014-3568]
958 ### Major changes between OpenSSL 1.0.0m and OpenSSL 1.0.0n [6 Aug 2014]
960 * Fix for [CVE-2014-3510]
961 * Fix for [CVE-2014-3507]
962 * Fix for [CVE-2014-3506]
963 * Fix for [CVE-2014-3505]
964 * Fix for [CVE-2014-3509]
965 * Fix for [CVE-2014-3508]
967 Known issues in OpenSSL 1.0.0m:
969 * EAP-FAST and other applications using tls_session_secret_cb
970 won't resume sessions. Fixed in 1.0.0n-dev
971 * Compilation failure of s3_pkt.c on some platforms due to missing
972 `<limits.h>` include. Fixed in 1.0.0n-dev
974 ### Major changes between OpenSSL 1.0.0l and OpenSSL 1.0.0m [5 Jun 2014]
976 * Fix for [CVE-2014-0224]
977 * Fix for [CVE-2014-0221]
978 * Fix for [CVE-2014-0198]
979 * Fix for [CVE-2014-0195]
980 * Fix for [CVE-2014-3470]
981 * Fix for [CVE-2014-0076]
982 * Fix for [CVE-2010-5298]
984 ### Major changes between OpenSSL 1.0.0k and OpenSSL 1.0.0l [6 Jan 2014]
986 * Fix for DTLS retransmission bug ([CVE-2013-6450])
988 ### Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]
990 * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
991 * Fix OCSP bad key DoS attack ([CVE-2013-0166])
993 ### Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]
995 * Fix DTLS record length checking bug ([CVE-2012-2333])
997 ### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]
999 * Fix for ASN1 overflow bug ([CVE-2012-2110])
1001 ### Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]
1003 * Fix for CMS/PKCS#7 MMA ([CVE-2012-0884])
1004 * Corrected fix for ([CVE-2011-4619])
1005 * Various DTLS fixes.
1007 ### Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]
1009 * Fix for DTLS DoS issue ([CVE-2012-0050])
1011 ### Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]
1013 * Fix for DTLS plaintext recovery attack ([CVE-2011-4108])
1014 * Clear block padding bytes of SSL 3.0 records ([CVE-2011-4576])
1015 * Only allow one SGC handshake restart for SSL/TLS ([CVE-2011-4619])
1016 * Check parameters are not NULL in GOST ENGINE ([CVE-2012-0027])
1017 * Check for malformed RFC3779 data ([CVE-2011-4577])
1019 ### Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]
1021 * Fix for CRL vulnerability issue ([CVE-2011-3207])
1022 * Fix for ECDH crashes ([CVE-2011-3210])
1023 * Protection against EC timing attacks.
1024 * Support ECDH ciphersuites for certificates using SHA2 algorithms.
1025 * Various DTLS fixes.
1027 ### Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]
1029 * Fix for security issue ([CVE-2011-0014])
1031 ### Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]
1033 * Fix for security issue ([CVE-2010-4180])
1034 * Fix for ([CVE-2010-4252])
1035 * Fix mishandling of absent EC point format extension.
1036 * Fix various platform compilation issues.
1037 * Corrected fix for security issue ([CVE-2010-3864]).
1039 ### Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]
1041 * Fix for security issue ([CVE-2010-3864]).
1042 * Fix for ([CVE-2010-2939])
1043 * Fix WIN32 build system for GOST ENGINE.
1045 ### Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]
1047 * Fix for security issue ([CVE-2010-1633]).
1048 * GOST MAC and CFB fixes.
1050 ### Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]
1052 * RFC3280 path validation: sufficient to process PKITS tests.
1053 * Integrated support for PVK files and keyblobs.
1054 * Change default private key format to PKCS#8.
1055 * CMS support: able to process all examples in RFC4134
1056 * Streaming ASN1 encode support for PKCS#7 and CMS.
1057 * Multiple signer and signer add support for PKCS#7 and CMS.
1058 * ASN1 printing support.
1059 * Whirlpool hash algorithm added.
1060 * RFC3161 time stamp support.
1061 * New generalised public key API supporting ENGINE based algorithms.
1062 * New generalised public key API utilities.
1063 * New ENGINE supporting GOST algorithms.
1064 * SSL/TLS GOST ciphersuite support.
1065 * PKCS#7 and CMS GOST support.
1066 * RFC4279 PSK ciphersuite support.
1067 * Supported points format extension for ECC ciphersuites.
1068 * ecdsa-with-SHA224/256/384/512 signature types.
1069 * dsa-with-SHA224 and dsa-with-SHA256 signature types.
1070 * Opaque PRF Input TLS extension support.
1071 * Updated time routines to avoid OS limitations.
1076 ### Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]
1078 * CFB cipher definition fixes.
1079 * Fix security issues [CVE-2010-0740] and [CVE-2010-0433].
1081 ### Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]
1083 * Cipher definition fixes.
1084 * Workaround for slow RAND_poll() on some WIN32 versions.
1085 * Remove MD2 from algorithm tables.
1086 * SPKAC handling fixes.
1087 * Support for RFC5746 TLS renegotiation extension.
1088 * Compression memory leak fixed.
1089 * Compression session resumption fixed.
1090 * Ticket and SNI coexistence fixes.
1091 * Many fixes to DTLS handling.
1093 ### Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]
1095 * Temporary work around for [CVE-2009-3555]: disable renegotiation.
1097 ### Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]
1099 * Fix various build issues.
1100 * Fix security issues [CVE-2009-0590], [CVE-2009-0591], [CVE-2009-0789]
1102 ### Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]
1104 * Fix security issue ([CVE-2008-5077])
1105 * Merge FIPS 140-2 branch code.
1107 ### Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]
1109 * CryptoAPI ENGINE support.
1110 * Various precautionary measures.
1111 * Fix for bugs affecting certificate request creation.
1112 * Support for local machine keyset attribute in PKCS#12 files.
1114 ### Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]
1116 * Backport of CMS functionality to 0.9.8.
1117 * Fixes for bugs introduced with 0.9.8f.
1119 ### Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]
1121 * Add gcc 4.2 support.
1122 * Add support for AES and SSE2 assembly language optimization
1124 * Support for RFC4507bis and server name extensions if explicitly
1125 selected at compile time.
1126 * DTLS improvements.
1127 * RFC4507bis support.
1128 * TLS Extensions support.
1130 ### Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]
1132 * Various ciphersuite selection fixes.
1135 ### Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]
1137 * Introduce limits to prevent malicious key DoS ([CVE-2006-2940])
1138 * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1139 * Changes to ciphersuite selection algorithm
1141 ### Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]
1143 * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1144 * New cipher Camellia
1146 ### Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]
1148 * Cipher string fixes.
1149 * Fixes for VC++ 2005.
1150 * Updated ECC cipher suite support.
1151 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
1152 * Zlib compression usage fixes.
1153 * Built in dynamic engine compilation support on Win32.
1154 * Fixes auto dynamic engine loading in Win32.
1156 ### Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]
1158 * Fix potential SSL 2.0 rollback ([CVE-2005-2969])
1159 * Extended Windows CE support
1161 ### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]
1163 * Major work on the BIGNUM library for higher efficiency and to
1164 make operations more streamlined and less contradictory. This
1165 is the result of a major audit of the BIGNUM library.
1166 * Addition of BIGNUM functions for fields GF(2^m) and NIST
1167 curves, to support the Elliptic Crypto functions.
1168 * Major work on Elliptic Crypto; ECDH and ECDSA added, including
1169 the use through EVP, X509 and ENGINE.
1170 * New ASN.1 mini-compiler that's usable through the OpenSSL
1172 * Added support for ASN.1 indefinite length constructed encoding.
1173 * New PKCS#12 'medium level' API to manipulate PKCS#12 files.
1174 * Complete rework of shared library construction and linking
1175 programs with shared or static libraries, through a separate
1177 * Rework of the passing of parameters from one Makefile to another.
1178 * Changed ENGINE framework to load dynamic engine modules
1179 automatically from specifically given directories.
1180 * New structure and ASN.1 functions for CertificatePair.
1181 * Changed the ZLIB compression method to be stateful.
1182 * Changed the key-generation and primality testing "progress"
1183 mechanism to take a structure that contains the ticker
1184 function and an argument.
1185 * New engine module: GMP (performs private key exponentiation).
1186 * New engine module: VIA PadLOck ACE extension in VIA C3
1187 Nehemiah processors.
1188 * Added support for IPv6 addresses in certificate extensions.
1189 See RFC 1884, section 2.2.
1190 * Added support for certificate policy mappings, policy
1191 constraints and name constraints.
1192 * Added support for multi-valued AVAs in the OpenSSL
1194 * Added support for multiple certificates with the same subject
1195 in the 'openssl ca' index file.
1196 * Make it possible to create self-signed certificates using
1197 'openssl ca -selfsign'.
1198 * Make it possible to generate a serial number file with
1199 'openssl ca -create_serial'.
1200 * New binary search functions with extended functionality.
1201 * New BUF functions.
1202 * New STORE structure and library to provide an interface to all
1203 sorts of data repositories. Supports storage of public and
1204 private keys, certificates, CRLs, numbers and arbitrary blobs.
1205 This library is unfortunately unfinished and unused within
1207 * New control functions for the error stack.
1208 * Changed the PKCS#7 library to support one-pass S/MIME
1210 * Added the possibility to compile without old deprecated
1211 functionality with the OPENSSL_NO_DEPRECATED macro or the
1212 'no-deprecated' argument to the config and Configure scripts.
1213 * Constification of all ASN.1 conversion functions, and other
1215 * Improved platform support for PowerPC.
1216 * New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
1217 * New X509_VERIFY_PARAM structure to support parameterisation
1218 of X.509 path validation.
1219 * Major overhaul of RC4 performance on Intel P4, IA-64 and
1221 * Changed the Configure script to have some algorithms disabled
1222 by default. Those can be explicitly enabled with the new
1223 argument form 'enable-xxx'.
1224 * Change the default digest in 'openssl' commands from MD5 to
1226 * Added support for DTLS.
1227 * New BIGNUM blinding.
1228 * Added support for the RSA-PSS encryption scheme
1229 * Added support for the RSA X.931 padding.
1230 * Added support for BSD sockets on NetWare.
1231 * Added support for files larger than 2GB.
1232 * Added initial support for Win64.
1233 * Added alternate pkg-config files.
1235 ### Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]
1237 * FIPS 1.1.1 module linking.
1238 * Various ciphersuite selection fixes.
1240 ### Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]
1242 * Introduce limits to prevent malicious key DoS ([CVE-2006-2940])
1243 * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1245 ### Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]
1247 * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1249 ### Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]
1251 * Visual C++ 2005 fixes.
1252 * Update Windows build system for FIPS.
1254 ### Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]
1256 * Give EVP_MAX_MD_SIZE its old value, except for a FIPS build.
1258 ### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]
1260 * Fix SSL 2.0 Rollback ([CVE-2005-2969])
1261 * Allow use of fixed-length exponent on DSA signing
1262 * Default fixed-window RSA, DSA, DH private-key operations
1264 ### Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]
1266 * More compilation issues fixed.
1267 * Adaptation to more modern Kerberos API.
1268 * Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
1269 * Enhanced x86_64 assembler BIGNUM module.
1270 * More constification.
1271 * Added processing of proxy certificates (RFC 3820).
1273 ### Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]
1275 * Several compilation issues fixed.
1276 * Many memory allocation failure checks added.
1277 * Improved comparison of X509 Name type.
1278 * Mandatory basic checks on certificates.
1279 * Performance improvements.
1281 ### Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]
1283 * Fix race condition in CRL checking code.
1284 * Fixes to PKCS#7 (S/MIME) code.
1286 ### Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]
1288 * Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
1289 * Security: Fix null-pointer assignment in do_change_cipher_spec()
1290 * Allow multiple active certificates with same subject in CA index
1291 * Multiple X509 verification fixes
1292 * Speed up HMAC and other operations
1294 ### Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]
1296 * Security: fix various ASN1 parsing bugs.
1297 * New -ignore_err option to OCSP utility.
1298 * Various interop and bug fixes in S/MIME code.
1299 * SSL/TLS protocol fix for unrequested client certificates.
1301 ### Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]
1303 * Security: counter the Klima-Pokorny-Rosa extension of
1304 Bleichbacher's attack
1305 * Security: make RSA blinding default.
1306 * Configuration: Irix fixes, AIX fixes, better mingw support.
1307 * Support for new platforms: linux-ia64-ecc.
1308 * Build: shared library support fixes.
1309 * ASN.1: treat domainComponent correctly.
1310 * Documentation: fixes and additions.
1312 ### Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]
1314 * Security: Important security related bugfixes.
1315 * Enhanced compatibility with MIT Kerberos.
1316 * Can be built without the ENGINE framework.
1317 * IA32 assembler enhancements.
1318 * Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
1319 * Configuration: the no-err option now works properly.
1320 * SSL/TLS: now handles manual certificate chain building.
1321 * SSL/TLS: certain session ID malfunctions corrected.
1323 ### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]
1325 * New library section OCSP.
1326 * Complete rewrite of ASN1 code.
1327 * CRL checking in verify code and openssl utility.
1328 * Extension copying in 'ca' utility.
1329 * Flexible display options in 'ca' utility.
1330 * Provisional support for international characters with UTF8.
1331 * Support for external crypto devices ('engine') is no longer
1332 a separate distribution.
1333 * New elliptic curve library section.
1334 * New AES (Rijndael) library section.
1335 * Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
1336 Linux x86_64, Linux 64-bit on Sparc v9
1337 * Extended support for some platforms: VxWorks
1338 * Enhanced support for shared libraries.
1339 * Now only builds PIC code when shared library support is requested.
1340 * Support for pkg-config.
1341 * Lots of new manuals.
1342 * Makes symbolic links to or copies of manuals to cover all described
1344 * Change DES API to clean up the namespace (some applications link also
1345 against libdes providing similar functions having the same name).
1346 Provide macros for backward compatibility (will be removed in the
1348 * Unify handling of cryptographic algorithms (software and engine)
1349 to be available via EVP routines for asymmetric and symmetric ciphers.
1350 * NCONF: new configuration handling routines.
1351 * Change API to use more 'const' modifiers to improve error checking
1352 and help optimizers.
1353 * Finally remove references to RSAref.
1354 * Reworked parts of the BIGNUM code.
1355 * Support for new engines: Broadcom ubsec, Accelerated Encryption
1356 Processing, IBM 4758.
1357 * A few new engines added in the demos area.
1358 * Extended and corrected OID (object identifier) table.
1359 * PRNG: query at more locations for a random device, automatic query for
1360 EGD style random sources at several locations.
1361 * SSL/TLS: allow optional cipher choice according to server's preference.
1362 * SSL/TLS: allow server to explicitly set new session ids.
1363 * SSL/TLS: support Kerberos cipher suites (RFC2712).
1364 Only supports MIT Kerberos for now.
1365 * SSL/TLS: allow more precise control of renegotiations and sessions.
1366 * SSL/TLS: add callback to retrieve SSL/TLS messages.
1367 * SSL/TLS: support AES cipher suites (RFC3268).
1369 ### Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]
1371 * Security: fix various ASN1 parsing bugs.
1372 * SSL/TLS protocol fix for unrequested client certificates.
1374 ### Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]
1376 * Security: counter the Klima-Pokorny-Rosa extension of
1377 Bleichbacher's attack
1378 * Security: make RSA blinding default.
1379 * Build: shared library support fixes.
1381 ### Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]
1383 * Important security related bugfixes.
1385 ### Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]
1387 * New configuration targets for Tandem OSS and A/UX.
1388 * New OIDs for Microsoft attributes.
1389 * Better handling of SSL session caching.
1390 * Better comparison of distinguished names.
1391 * Better handling of shared libraries in a mixed GNU/non-GNU environment.
1392 * Support assembler code with Borland C.
1393 * Fixes for length problems.
1394 * Fixes for uninitialised variables.
1395 * Fixes for memory leaks, some unusual crashes and some race conditions.
1396 * Fixes for smaller building problems.
1397 * Updates of manuals, FAQ and other instructive documents.
1399 ### Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]
1401 * Important building fixes on Unix.
1403 ### Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]
1405 * Various important bugfixes.
1407 ### Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]
1409 * Important security related bugfixes.
1410 * Various SSL/TLS library bugfixes.
1412 ### Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]
1414 * Various SSL/TLS library bugfixes.
1415 * Fix DH parameter generation for 'non-standard' generators.
1417 ### Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]
1419 * Various SSL/TLS library bugfixes.
1420 * BIGNUM library fixes.
1421 * RSA OAEP and random number generation fixes.
1422 * Object identifiers corrected and added.
1423 * Add assembler BN routines for IA64.
1424 * Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
1425 MIPS Linux; shared library support for Irix, HP-UX.
1426 * Add crypto accelerator support for AEP, Baltimore SureWare,
1427 Broadcom and Cryptographic Appliance's keyserver
1428 [in 0.9.6c-engine release].
1430 ### Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]
1432 * Security fix: PRNG improvements.
1433 * Security fix: RSA OAEP check.
1434 * Security fix: Reinsert and fix countermeasure to Bleichbacher's
1436 * MIPS bug fix in BIGNUM.
1437 * Bug fix in "openssl enc".
1438 * Bug fix in X.509 printing routine.
1439 * Bug fix in DSA verification routine and DSA S/MIME verification.
1440 * Bug fix to make PRNG thread-safe.
1441 * Bug fix in RAND_file_name().
1442 * Bug fix in compatibility mode trust settings.
1443 * Bug fix in blowfish EVP.
1444 * Increase default size for BIO buffering filter.
1445 * Compatibility fixes in some scripts.
1447 ### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]
1449 * Security fix: change behavior of OpenSSL to avoid using
1450 environment variables when running as root.
1451 * Security fix: check the result of RSA-CRT to reduce the
1452 possibility of deducing the private key from an incorrectly
1453 calculated signature.
1454 * Security fix: prevent Bleichenbacher's DSA attack.
1455 * Security fix: Zero the premaster secret after deriving the
1456 master secret in DH ciphersuites.
1457 * Reimplement SSL_peek(), which had various problems.
1458 * Compatibility fix: the function des_encrypt() renamed to
1459 des_encrypt1() to avoid clashes with some Unixen libc.
1460 * Bug fixes for Win32, HP/UX and Irix.
1461 * Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
1462 memory checking routines.
1463 * Bug fixes for RSA operations in threaded environments.
1464 * Bug fixes in misc. openssl applications.
1465 * Remove a few potential memory leaks.
1466 * Add tighter checks of BIGNUM routines.
1467 * Shared library support has been reworked for generality.
1468 * More documentation.
1469 * New function BN_rand_range().
1470 * Add "-rand" option to openssl s_client and s_server.
1472 ### Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]
1474 * Some documentation for BIO and SSL libraries.
1475 * Enhanced chain verification using key identifiers.
1476 * New sign and verify options to 'dgst' application.
1477 * Support for DER and PEM encoded messages in 'smime' application.
1478 * New 'rsautl' application, low-level RSA utility.
1480 * Bugfix for SSL rollback padding check.
1481 * Support for external crypto devices [1].
1482 * Enhanced EVP interface.
1484 [1] The support for external crypto devices is currently a separate
1485 distribution. See the file README-Engine.md.
1487 ### Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]
1489 * Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
1490 * Shared library support for HPUX and Solaris-gcc
1491 * Support of Linux/IA64
1492 * Assembler support for Mingw32
1493 * New 'rand' application
1494 * New way to check for existence of algorithms from scripts
1496 ### Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]
1498 * S/MIME support in new 'smime' command
1499 * Documentation for the OpenSSL command line application
1500 * Automation of 'req' application
1501 * Fixes to make s_client, s_server work under Windows
1502 * Support for multiple fieldnames in SPKACs
1503 * New SPKAC command line utility and associated library functions
1504 * Options to allow passwords to be obtained from various sources
1505 * New public key PEM format and options to handle it
1506 * Many other fixes and enhancements to command line utilities
1507 * Usable certificate chain verification
1508 * Certificate purpose checking
1509 * Certificate trust settings
1510 * Support of authority information access extension
1511 * Extensions in certificate requests
1512 * Simplified X509 name and attribute routines
1513 * Initial (incomplete) support for international character sets
1514 * New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
1515 * Read only memory BIOs and simplified creation function
1516 * TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
1517 record; allow fragmentation and interleaving of handshake and other
1519 * TLS/SSL code now "tolerates" MS SGC
1520 * Work around for Netscape client certificate hang bug
1521 * RSA_NULL option that removes RSA patent code but keeps other
1523 * Memory leak detection now allows applications to add extra information
1524 via a per-thread stack
1525 * PRNG robustness improved
1527 * BIGNUM library bug fixes
1528 * Faster DSA parameter generation
1529 * Enhanced support for Alpha Linux
1530 * Experimental macOS support
1532 ### Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]
1534 * Transparent support for PKCS#8 format private keys: these are used
1535 by several software packages and are more secure than the standard
1537 * PKCS#5 v2.0 implementation
1538 * Password callbacks have a new void * argument for application data
1539 * Avoid various memory leaks
1540 * New pipe-like BIO that allows using the SSL library when actual I/O
1541 must be handled by the application (BIO pair)
1543 ### Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]
1545 * Lots of enhancements and cleanups to the Configuration mechanism
1546 * RSA OEAP related fixes
1547 * Added "openssl ca -revoke" option for revoking a certificate
1548 * Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
1549 * Source tree cleanups: removed lots of obsolete files
1550 * Thawte SXNet, certificate policies and CRL distribution points
1552 * Preliminary (experimental) S/MIME support
1553 * Support for ASN.1 UTF8String and VisibleString
1554 * Full integration of PKCS#12 code
1555 * Sparc assembler bignum implementation, optimized hash functions
1556 * Option to disable selected ciphers
1558 ### Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]
1560 * Fixed a security hole related to session resumption
1561 * Fixed RSA encryption routines for the p < q case
1562 * "ALL" in cipher lists now means "everything except NULL ciphers"
1563 * Support for Triple-DES CBCM cipher
1564 * Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
1565 * First support for new TLSv1 ciphers
1566 * Added a few new BIOs (syslog BIO, reliable BIO)
1567 * Extended support for DSA certificate/keys.
1568 * Extended support for Certificate Signing Requests (CSR)
1569 * Initial support for X.509v3 extensions
1570 * Extended support for compression inside the SSL record layer
1571 * Overhauled Win32 builds
1572 * Cleanups and fixes to the Big Number (BN) library
1573 * Support for ASN.1 GeneralizedTime
1574 * Split ASN.1 SETs from SEQUENCEs
1575 * ASN1 and PEM support for Netscape Certificate Sequences
1576 * Overhauled Perl interface
1577 * Lots of source tree cleanups.
1578 * Lots of memory leak fixes.
1579 * Lots of bug fixes.
1581 ### Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]
1583 * Integration of the popular NO_RSA/NO_DSA patches
1584 * Initial support for compression inside the SSL record layer
1585 * Added BIO proxy and filtering functionality
1586 * Extended Big Number (BN) library
1587 * Added RIPE MD160 message digest
1588 * Added support for RC2/64bit cipher
1589 * Extended ASN.1 parser routines
1590 * Adjustments of the source tree for CVS
1591 * Support for various new platforms
1595 [CVE-2024-0727]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-0727
1596 [CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237
1597 [CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129
1598 [CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678
1599 [CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363
1600 [CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807
1601 [CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817
1602 [CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446
1603 [CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975
1604 [CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650
1605 [CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255
1606 [CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466
1607 [CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465
1608 [CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464
1609 [CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401
1610 [CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286
1611 [CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217
1612 [CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216
1613 [CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215
1614 [CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450
1615 [CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304
1616 [CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203
1617 [CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996
1618 [CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274
1619 [CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097
1620 [CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971
1621 [CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967
1622 [CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563
1623 [CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559
1624 [CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552
1625 [CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551
1626 [CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549
1627 [CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547
1628 [CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543
1629 [CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407
1630 [CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739
1631 [CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737
1632 [CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735
1633 [CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734
1634 [CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733
1635 [CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732
1636 [CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738
1637 [CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737
1638 [CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736
1639 [CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735
1640 [CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733
1641 [CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732
1642 [CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731
1643 [CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730
1644 [CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055
1645 [CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054
1646 [CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053
1647 [CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052
1648 [CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309
1649 [CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308
1650 [CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307
1651 [CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306
1652 [CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305
1653 [CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304
1654 [CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303
1655 [CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302
1656 [CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183
1657 [CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182
1658 [CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181
1659 [CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180
1660 [CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179
1661 [CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178
1662 [CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177
1663 [CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176
1664 [CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109
1665 [CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107
1666 [CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106
1667 [CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105
1668 [CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800
1669 [CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799
1670 [CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798
1671 [CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797
1672 [CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705
1673 [CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702
1674 [CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701
1675 [CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197
1676 [CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196
1677 [CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195
1678 [CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194
1679 [CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193
1680 [CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793
1681 [CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792
1682 [CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791
1683 [CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790
1684 [CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789
1685 [CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788
1686 [CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787
1687 [CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293
1688 [CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291
1689 [CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290
1690 [CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289
1691 [CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288
1692 [CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287
1693 [CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286
1694 [CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285
1695 [CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209
1696 [CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208
1697 [CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207
1698 [CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206
1699 [CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205
1700 [CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204
1701 [CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275
1702 [CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139
1703 [CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572
1704 [CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571
1705 [CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570
1706 [CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569
1707 [CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568
1708 [CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567
1709 [CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566
1710 [CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513
1711 [CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512
1712 [CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511
1713 [CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510
1714 [CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509
1715 [CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508
1716 [CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507
1717 [CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506
1718 [CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505
1719 [CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470
1720 [CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224
1721 [CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221
1722 [CVE-2014-0198]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0198
1723 [CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195
1724 [CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160
1725 [CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076
1726 [CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450
1727 [CVE-2013-6449]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6449
1728 [CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353
1729 [CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169
1730 [CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166
1731 [CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686
1732 [CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333
1733 [CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110
1734 [CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884
1735 [CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050
1736 [CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027
1737 [CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619
1738 [CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577
1739 [CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576
1740 [CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108
1741 [CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210
1742 [CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207
1743 [CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014
1744 [CVE-2010-5298]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-5298
1745 [CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252
1746 [CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180
1747 [CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864
1748 [CVE-2010-2939]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-2939
1749 [CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633
1750 [CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740
1751 [CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433
1752 [CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555
1753 [CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789
1754 [CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591
1755 [CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590
1756 [CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077
1757 [CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343
1758 [CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339
1759 [CVE-2006-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3737
1760 [CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940
1761 [CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937
1762 [CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969
1763 [OpenSSL Guide]: https://www.openssl.org/docs/manmaster/man7/ossl-guide-introduction.html
1764 [CHANGES.md]: ./CHANGES.md
1765 [README-QUIC.md]: ./README-QUIC.md
1766 [issue tracker]: https://github.com/openssl/openssl/issues