xref: /freebsd/crypto/openssl/NEWS.md (revision 63f537551380d2dab29fa402ad1269feae17e594)
1NEWS
2====
3
4This file gives a brief overview of the major changes between each OpenSSL
5release. For more details please read the CHANGES file.
6
7OpenSSL Releases
8----------------
9
10 - [OpenSSL 3.0](#openssl-30)
11 - [OpenSSL 1.1.1](#openssl-111)
12 - [OpenSSL 1.1.0](#openssl-110)
13 - [OpenSSL 1.0.2](#openssl-102)
14 - [OpenSSL 1.0.1](#openssl-101)
15 - [OpenSSL 1.0.0](#openssl-100)
16 - [OpenSSL 0.9.x](#openssl-09x)
17
18OpenSSL 3.0
19-----------
20
21### Major changes between OpenSSL 3.0.10 and OpenSSL 3.0.11 [19 Sep 2023]
22
23  * Fix POLY1305 MAC implementation corrupting XMM registers on Windows
24    ([CVE-2023-4807])
25
26### Major changes between OpenSSL 3.0.9 and OpenSSL 3.0.10 [1 Aug 2023]
27
28  * Fix excessive time spent checking DH q parameter value ([CVE-2023-3817])
29  * Fix DH_check() excessive time with over sized modulus ([CVE-2023-3446])
30  * Do not ignore empty associated data entries with AES-SIV ([CVE-2023-2975])
31
32### Major changes between OpenSSL 3.0.8 and OpenSSL 3.0.9 [30 May 2023]
33
34  * Mitigate for very slow `OBJ_obj2txt()` performance with gigantic OBJECT
35    IDENTIFIER sub-identities.  ([CVE-2023-2650])
36  * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms
37    ([CVE-2023-1255])
38  * Fixed documentation of X509_VERIFY_PARAM_add0_policy() ([CVE-2023-0466])
39  * Fixed handling of invalid certificate policies in leaf certificates
40    ([CVE-2023-0465])
41  * Limited the number of nodes created in a policy tree ([CVE-2023-0464])
42
43### Major changes between OpenSSL 3.0.7 and OpenSSL 3.0.8 [7 Feb 2023]
44
45  * Fixed NULL dereference during PKCS7 data verification ([CVE-2023-0401])
46  * Fixed X.400 address type confusion in X.509 GeneralName ([CVE-2023-0286])
47  * Fixed NULL dereference validating DSA public key ([CVE-2023-0217])
48  * Fixed Invalid pointer dereference in d2i_PKCS7 functions ([CVE-2023-0216])
49  * Fixed Use-after-free following BIO_new_NDEF ([CVE-2023-0215])
50  * Fixed Double free after calling PEM_read_bio_ex ([CVE-2022-4450])
51  * Fixed Timing Oracle in RSA Decryption ([CVE-2022-4304])
52  * Fixed X.509 Name Constraints Read Buffer Overflow ([CVE-2022-4203])
53  * Fixed X.509 Policy Constraints Double Locking ([CVE-2022-3996])
54
55### Major changes between OpenSSL 3.0.6 and OpenSSL 3.0.7 [1 Nov 2022]
56
57  * Added RIPEMD160 to the default provider.
58  * Fixed regressions introduced in 3.0.6 version.
59  * Fixed two buffer overflows in punycode decoding functions.
60    ([CVE-2022-3786]) and ([CVE-2022-3602])
61
62### Major changes between OpenSSL 3.0.5 and OpenSSL 3.0.6 [11 Oct 2022]
63
64  * Fix for custom ciphers to prevent accidental use of NULL encryption
65    ([CVE-2022-3358])
66
67### Major changes between OpenSSL 3.0.4 and OpenSSL 3.0.5 [5 Jul 2022]
68
69  * Fixed heap memory corruption with RSA private key operation
70    ([CVE-2022-2274])
71  * Fixed AES OCB failure to encrypt some bytes on 32-bit x86 platforms
72    ([CVE-2022-2097])
73
74### Major changes between OpenSSL 3.0.3 and OpenSSL 3.0.4 [21 Jun 2022]
75
76  * Fixed additional bugs in the c_rehash script which was not properly
77    sanitising shell metacharacters to prevent command injection
78    ([CVE-2022-2068])
79
80### Major changes between OpenSSL 3.0.2 and OpenSSL 3.0.3 [3 May 2022]
81
82  * Fixed a bug in the c_rehash script which was not properly sanitising shell
83    metacharacters to prevent command injection ([CVE-2022-1292])
84  * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer
85    certificate on an OCSP response ([CVE-2022-1343])
86  * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the
87    AAD data as the MAC key ([CVE-2022-1434])
88  * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory
89    occuppied by the removed hash table entries ([CVE-2022-1473])
90
91### Major changes between OpenSSL 3.0.1 and OpenSSL 3.0.2 [15 Mar 2022]
92
93  * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever
94    for non-prime moduli ([CVE-2022-0778])
95
96### Major changes between OpenSSL 3.0.0 and OpenSSL 3.0.1 [14 Dec 2021]
97
98  * Fixed invalid handling of X509_verify_cert() internal errors in libssl
99    ([CVE-2021-4044])
100  * Allow fetching an operation from the provider that owns an unexportable key
101    as a fallback if that is still allowed by the property query.
102
103### Major changes between OpenSSL 1.1.1 and OpenSSL 3.0.0 [7 sep 2021]
104
105  * Enhanced 'openssl list' with many new options.
106  * Added migration guide to man7.
107  * Implemented support for fully "pluggable" TLSv1.3 groups.
108  * Added suport for Kernel TLS (KTLS).
109  * Changed the license to the Apache License v2.0.
110  * Moved all variations of the EVP ciphers CAST5, BF, IDEA, SEED, RC2,
111    RC4, RC5, and DES to the legacy provider.
112  * Moved the EVP digests MD2, MD4, MDC2, WHIRLPOOL and RIPEMD-160 to the legacy
113    provider.
114  * Added convenience functions for generating asymmetric key pairs.
115  * Deprecated the `OCSP_REQ_CTX` type and functions.
116  * Deprecated the `EC_KEY` and `EC_KEY_METHOD` types and functions.
117  * Deprecated the `RSA` and `RSA_METHOD` types and functions.
118  * Deprecated the `DSA` and `DSA_METHOD` types and functions.
119  * Deprecated the `DH` and `DH_METHOD` types and functions.
120  * Deprecated the `ERR_load_` functions.
121  * Remove the `RAND_DRBG` API.
122  * Deprecated the `ENGINE` API.
123  * Added `OSSL_LIB_CTX`, a libcrypto library context.
124  * Added various `_ex` functions to the OpenSSL API that support using
125    a non-default `OSSL_LIB_CTX`.
126  * Interactive mode is removed from the 'openssl' program.
127  * The X25519, X448, Ed25519, Ed448, SHAKE128 and SHAKE256 algorithms are
128    included in the FIPS provider.
129  * X509 certificates signed using SHA1 are no longer allowed at security
130    level 1 or higher. The default security level for TLS is 1, so
131    certificates signed using SHA1 are by default no longer trusted to
132    authenticate servers or clients.
133  * enable-crypto-mdebug and enable-crypto-mdebug-backtrace were mostly
134    disabled; the project uses address sanitize/leak-detect instead.
135  * Added a Certificate Management Protocol (CMP, RFC 4210) implementation
136    also covering CRMF (RFC 4211) and HTTP transfer (RFC 6712).
137    It is part of the crypto lib and adds a 'cmp' app with a demo configuration.
138    All widely used CMP features are supported for both clients and servers.
139  * Added a proper HTTP client supporting GET with optional redirection, POST,
140    arbitrary request and response content types, TLS, persistent connections,
141    connections via HTTP(s) proxies, connections and exchange via user-defined
142    BIOs (allowing implicit connections), and timeout checks.
143  * Added util/check-format.pl for checking adherence to the coding guidelines.
144  * Added OSSL_ENCODER, a generic encoder API.
145  * Added OSSL_DECODER, a generic decoder API.
146  * Added OSSL_PARAM_BLD, an easier to use API to OSSL_PARAM.
147  * Added error raising macros, ERR_raise() and ERR_raise_data().
148  * Deprecated ERR_put_error(), ERR_get_error_line(), ERR_get_error_line_data(),
149    ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and
150    ERR_func_error_string().
151  * Added OSSL_PROVIDER_available(), to check provider availibility.
152  * Added 'openssl mac' that uses the EVP_MAC API.
153  * Added 'openssl kdf' that uses the EVP_KDF API.
154  * Add OPENSSL_info() and 'openssl info' to get built-in data.
155  * Add support for enabling instrumentation through trace and debug
156    output.
157  * Changed our version number scheme and set the next major release to
158    3.0.0
159  * Added EVP_MAC, an EVP layer MAC API, and a generic EVP_PKEY to EVP_MAC
160    bridge.  Supported MACs are: BLAKE2, CMAC, GMAC, HMAC, KMAC, POLY1305
161    and SIPHASH.
162  * Removed the heartbeat message in DTLS feature.
163  * Added EVP_KDF, an EVP layer KDF and PRF API, and a generic EVP_PKEY to
164    EVP_KDF bridge.  Supported KDFs are: HKDF, KBKDF, KRB5 KDF, PBKDF2,
165    PKCS12 KDF, SCRYPT, SSH KDF, SSKDF, TLS1 PRF, X9.42 KDF and X9.63 KDF.
166  * All of the low-level MD2, MD4, MD5, MDC2, RIPEMD160, SHA1, SHA224,
167    SHA256, SHA384, SHA512 and Whirlpool digest functions have been
168    deprecated.
169  * All of the low-level AES, Blowfish, Camellia, CAST, DES, IDEA, RC2,
170    RC4, RC5 and SEED cipher functions have been deprecated.
171  * All of the low-level DH, DSA, ECDH, ECDSA and RSA public key functions
172    have been deprecated.
173  * SSL 3, TLS 1.0, TLS 1.1, and DTLS 1.0 only work at security level 0,
174    except when RSA key exchange without SHA1 is used.
175  * Added providers, a new pluggability concept that will replace the
176    ENGINE API and ENGINE implementations.
177
178OpenSSL 1.1.1
179-------------
180
181### Major changes between OpenSSL 1.1.1k and OpenSSL 1.1.1l [24 Aug 2021]
182
183  * Fixed an SM2 Decryption Buffer Overflow ([CVE-2021-3711])
184  * Fixed various read buffer overruns processing ASN.1 strings ([CVE-2021-3712])
185
186### Major changes between OpenSSL 1.1.1j and OpenSSL 1.1.1k [25 Mar 2021]
187
188  * Fixed a problem with verifying a certificate chain when using the
189    X509_V_FLAG_X509_STRICT flag ([CVE-2021-3450])
190  * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously
191    crafted renegotiation ClientHello message from a client ([CVE-2021-3449])
192
193### Major changes between OpenSSL 1.1.1i and OpenSSL 1.1.1j [16 Feb 2021]
194
195  * Fixed a NULL pointer deref in the X509_issuer_and_serial_hash()
196    function ([CVE-2021-23841])
197  * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING
198    padding mode to correctly check for rollback attacks
199  * Fixed an overflow in the EVP_CipherUpdate, EVP_EncryptUpdate and
200    EVP_DecryptUpdate functions ([CVE-2021-23840])
201  * Fixed SRP_Calc_client_key so that it runs in constant time
202
203### Major changes between OpenSSL 1.1.1h and OpenSSL 1.1.1i [8 Dec 2020]
204
205  * Fixed NULL pointer deref in GENERAL_NAME_cmp ([CVE-2020-1971])
206
207### Major changes between OpenSSL 1.1.1g and OpenSSL 1.1.1h [22 Sep 2020]
208
209  * Disallow explicit curve parameters in verifications chains when
210    X509_V_FLAG_X509_STRICT is used
211  * Enable 'MinProtocol' and 'MaxProtocol' to configure both TLS and DTLS
212    contexts
213  * Oracle Developer Studio will start reporting deprecation warnings
214
215### Major changes between OpenSSL 1.1.1f and OpenSSL 1.1.1g [21 Apr 2020]
216
217  * Fixed segmentation fault in SSL_check_chain() ([CVE-2020-1967])
218
219### Major changes between OpenSSL 1.1.1e and OpenSSL 1.1.1f [31 Mar 2020]
220
221  * Revert the unexpected EOF reporting via SSL_ERROR_SSL
222
223### Major changes between OpenSSL 1.1.1d and OpenSSL 1.1.1e [17 Mar 2020]
224
225  * Fixed an overflow bug in the x64_64 Montgomery squaring procedure
226    used in exponentiation with 512-bit moduli ([CVE-2019-1551])
227
228### Major changes between OpenSSL 1.1.1c and OpenSSL 1.1.1d [10 Sep 2019]
229
230  * Fixed a fork protection issue ([CVE-2019-1549])
231  * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
232    ([CVE-2019-1563])
233  * For built-in EC curves, ensure an EC_GROUP built from the curve name is
234    used even when parsing explicit parameters
235  * Compute ECC cofactors if not provided during EC_GROUP construction
236    ([CVE-2019-1547])
237  * Early start up entropy quality from the DEVRANDOM seed source has been
238    improved for older Linux systems
239  * Correct the extended master secret constant on EBCDIC systems
240  * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
241  * Changed DH_check to accept parameters with order q and 2q subgroups
242  * Significantly reduce secure memory usage by the randomness pools
243  * Revert the DEVRANDOM_WAIT feature for Linux systems
244
245### Major changes between OpenSSL 1.1.1b and OpenSSL 1.1.1c [28 May 2019]
246
247  * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
248
249### Major changes between OpenSSL 1.1.1a and OpenSSL 1.1.1b [26 Feb 2019]
250
251  * Change the info callback signals for the start and end of a post-handshake
252    message exchange in TLSv1.3.
253  * Fix a bug in DTLS over SCTP. This breaks interoperability with older
254    versions of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2.
255
256### Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018]
257
258  * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
259  * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
260
261### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.1 [11 Sep 2018]
262
263  * Support for TLSv1.3 added. The TLSv1.3 implementation includes:
264    * Fully compliant implementation of RFC8446 (TLSv1.3) on by default
265    * Early data (0-RTT)
266    * Post-handshake authentication and key update
267    * Middlebox Compatibility Mode
268    * TLSv1.3 PSKs
269    * Support for all five RFC8446 ciphersuites
270    * RSA-PSS signature algorithms (backported to TLSv1.2)
271    * Configurable session ticket support
272    * Stateless server support
273    * Rewrite of the packet construction code for "safer" packet handling
274    * Rewrite of the extension handling code
275    For further important information, see the [TLS1.3 page](
276    https://wiki.openssl.org/index.php/TLS1.3) in the OpenSSL Wiki.
277
278  * Complete rewrite of the OpenSSL random number generator to introduce the
279    following capabilities
280      * The default RAND method now utilizes an AES-CTR DRBG according to
281        NIST standard SP 800-90Ar1.
282      * Support for multiple DRBG instances with seed chaining.
283      * There is a public and private DRBG instance.
284      * The DRBG instances are fork-safe.
285      * Keep all global DRBG instances on the secure heap if it is enabled.
286      * The public and private DRBG instance are per thread for lock free
287      operation
288  * Support for various new cryptographic algorithms including:
289      * SHA3
290      * SHA512/224 and SHA512/256
291      * EdDSA (both Ed25519 and Ed448) including X509 and TLS support
292      * X448 (adding to the existing X25519 support in 1.1.0)
293      * Multi-prime RSA
294      * SM2
295      * SM3
296      * SM4
297      * SipHash
298      * ARIA (including TLS support)
299  * Significant Side-Channel attack security improvements
300  * Add a new ClientHello callback to provide the ability to adjust the SSL
301  object at an early stage.
302  * Add 'Maximum Fragment Length' TLS extension negotiation and support
303  * A new STORE module, which implements a uniform and URI based reader of
304   stores that can contain keys, certificates, CRLs and numerous other
305  objects.
306  * Move the display of configuration data to configdata.pm.
307  * Allow GNU style "make variables" to be used with Configure.
308  * Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes
309  * Rewrite of devcrypto engine
310
311OpenSSL 1.1.0
312-------------
313
314### Major changes between OpenSSL 1.1.0k and OpenSSL 1.1.0l [10 Sep 2019]
315
316  * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
317    ([CVE-2019-1563])
318  * For built-in EC curves, ensure an EC_GROUP built from the curve name is
319    used even when parsing explicit parameters
320  * Compute ECC cofactors if not provided during EC_GROUP construction
321    ([CVE-2019-1547])
322  * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
323
324### Major changes between OpenSSL 1.1.0j and OpenSSL 1.1.0k [28 May 2019]
325
326  * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
327
328### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.0j [20 Nov 2018]
329
330  * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
331  * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
332
333### Major changes between OpenSSL 1.1.0h and OpenSSL 1.1.0i [14 Aug 2018]
334
335  * Client DoS due to large DH parameter ([CVE-2018-0732])
336  * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
337
338### Major changes between OpenSSL 1.1.0g and OpenSSL 1.1.0h [27 Mar 2018]
339
340  * Constructed ASN.1 types with a recursive definition could exceed the
341    stack ([CVE-2018-0739])
342  * Incorrect CRYPTO_memcmp on HP-UX PA-RISC ([CVE-2018-0733])
343  * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
344
345### Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.0g [2 Nov 2017]
346
347  * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
348  * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
349
350### Major changes between OpenSSL 1.1.0e and OpenSSL 1.1.0f [25 May 2017]
351
352  * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
353
354### Major changes between OpenSSL 1.1.0d and OpenSSL 1.1.0e [16 Feb 2017]
355
356  * Encrypt-Then-Mac renegotiation crash ([CVE-2017-3733])
357
358### Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017]
359
360  * Truncated packet could crash via OOB read ([CVE-2017-3731])
361  * Bad (EC)DHE parameters cause a client crash ([CVE-2017-3730])
362  * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
363
364### Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016]
365
366  * ChaCha20/Poly1305 heap-buffer-overflow ([CVE-2016-7054])
367  * CMS Null dereference ([CVE-2016-7053])
368  * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
369
370### Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016]
371
372  * Fix Use After Free for large message sizes ([CVE-2016-6309])
373
374### Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016]
375
376  * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
377  * SSL_peek() hang on empty record ([CVE-2016-6305])
378  * Excessive allocation of memory in tls_get_message_header()
379    ([CVE-2016-6307])
380  * Excessive allocation of memory in dtls1_preprocess_fragment()
381    ([CVE-2016-6308])
382
383### Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016]
384
385  * Copyright text was shrunk to a boilerplate that points to the license
386  * "shared" builds are now the default when possible
387  * Added support for "pipelining"
388  * Added the AFALG engine
389  * New threading API implemented
390  * Support for ChaCha20 and Poly1305 added to libcrypto and libssl
391  * Support for extended master secret
392  * CCM ciphersuites
393  * Reworked test suite, now based on perl, Test::Harness and Test::More
394  * *Most* libcrypto and libssl public structures were made opaque,
395    including:
396    BIGNUM and associated types, EC_KEY and EC_KEY_METHOD,
397    DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD,
398    BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX,
399    EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX,
400    X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE,
401    X509_LOOKUP, X509_LOOKUP_METHOD
402  * libssl internal structures made opaque
403  * SSLv2 support removed
404  * Kerberos ciphersuite support removed
405  * RC4 removed from DEFAULT ciphersuites in libssl
406  * 40 and 56 bit cipher support removed from libssl
407  * All public header files moved to include/openssl, no more symlinking
408  * SSL/TLS state machine, version negotiation and record layer rewritten
409  * EC revision: now operations use new EC_KEY_METHOD.
410  * Support for OCB mode added to libcrypto
411  * Support for asynchronous crypto operations added to libcrypto and libssl
412  * Deprecated interfaces can now be disabled at build time either
413    relative to the latest release via the "no-deprecated" Configure
414    argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
415  * Application software can be compiled with -DOPENSSL_API_COMPAT=version
416    to ensure that features deprecated in that version are not exposed.
417  * Support for RFC6698/RFC7671 DANE TLSA peer authentication
418  * Change of Configure to use --prefix as the main installation
419    directory location rather than --openssldir.  The latter becomes
420    the directory for certs, private key and openssl.cnf exclusively.
421  * Reworked BIO networking library, with full support for IPv6.
422  * New "unified" build system
423  * New security levels
424  * Support for scrypt algorithm
425  * Support for X25519
426  * Extended SSL_CONF support using configuration files
427  * KDF algorithm support. Implement TLS PRF as a KDF.
428  * Support for Certificate Transparency
429  * HKDF support.
430
431OpenSSL 1.0.2
432-------------
433
434### Major changes between OpenSSL 1.0.2s and OpenSSL 1.0.2t [10 Sep 2019]
435
436  * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
437    ([CVE-2019-1563])
438  * For built-in EC curves, ensure an EC_GROUP built from the curve name is
439    used even when parsing explicit parameters
440  * Compute ECC cofactors if not provided during EC_GROUP construction
441    ([CVE-2019-1547])
442  * Document issue with installation paths in diverse Windows builds
443    ([CVE-2019-1552])
444
445### Major changes between OpenSSL 1.0.2r and OpenSSL 1.0.2s [28 May 2019]
446
447  * None
448
449### Major changes between OpenSSL 1.0.2q and OpenSSL 1.0.2r [26 Feb 2019]
450
451  * 0-byte record padding oracle ([CVE-2019-1559])
452
453### Major changes between OpenSSL 1.0.2p and OpenSSL 1.0.2q [20 Nov 2018]
454
455  * Microarchitecture timing vulnerability in ECC scalar multiplication ([CVE-2018-5407])
456  * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
457
458### Major changes between OpenSSL 1.0.2o and OpenSSL 1.0.2p [14 Aug 2018]
459
460  * Client DoS due to large DH parameter ([CVE-2018-0732])
461  * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
462
463### Major changes between OpenSSL 1.0.2n and OpenSSL 1.0.2o [27 Mar 2018]
464
465  * Constructed ASN.1 types with a recursive definition could exceed the
466    stack ([CVE-2018-0739])
467
468### Major changes between OpenSSL 1.0.2m and OpenSSL 1.0.2n [7 Dec 2017]
469
470  * Read/write after SSL object in error state ([CVE-2017-3737])
471  * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
472
473### Major changes between OpenSSL 1.0.2l and OpenSSL 1.0.2m [2 Nov 2017]
474
475  * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
476  * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
477
478### Major changes between OpenSSL 1.0.2k and OpenSSL 1.0.2l [25 May 2017]
479
480  * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
481
482### Major changes between OpenSSL 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
483
484  * Truncated packet could crash via OOB read ([CVE-2017-3731])
485  * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
486  * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
487
488### Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
489
490  * Missing CRL sanity check ([CVE-2016-7052])
491
492### Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
493
494  * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
495  * SWEET32 Mitigation ([CVE-2016-2183])
496  * OOB write in MDC2_Update() ([CVE-2016-6303])
497  * Malformed SHA512 ticket DoS ([CVE-2016-6302])
498  * OOB write in BN_bn2dec() ([CVE-2016-2182])
499  * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
500  * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
501  * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
502  * DTLS buffered message DoS ([CVE-2016-2179])
503  * DTLS replay protection DoS ([CVE-2016-2181])
504  * Certificate message OOB reads ([CVE-2016-6306])
505
506### Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
507
508  * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
509  * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
510  * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
511  * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
512  * EBCDIC overread ([CVE-2016-2176])
513  * Modify behavior of ALPN to invoke callback after SNI/servername
514    callback, such that updates to the SSL_CTX affect ALPN.
515  * Remove LOW from the DEFAULT cipher list.  This removes singles DES from
516    the default.
517  * Only remove the SSLv2 methods with the no-ssl2-method option.
518
519### Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
520
521  * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
522  * Disable SSLv2 default build, default negotiation and weak ciphers
523    ([CVE-2016-0800])
524  * Fix a double-free in DSA code ([CVE-2016-0705])
525  * Disable SRP fake user seed to address a server memory leak
526    ([CVE-2016-0798])
527  * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
528    ([CVE-2016-0797])
529  * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
530  * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
531
532### Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
533
534  * DH small subgroups ([CVE-2016-0701])
535  * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
536
537### Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
538
539  * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2015-3193])
540  * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
541  * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
542  * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
543  * In DSA_generate_parameters_ex, if the provided seed is too short,
544    return an error
545
546### Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
547
548  * Alternate chains certificate forgery ([CVE-2015-1793])
549  * Race condition handling PSK identify hint ([CVE-2015-3196])
550
551### Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
552
553  * Fix HMAC ABI incompatibility
554
555### Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
556
557  * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
558  * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
559  * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
560  * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
561  * Race condition handling NewSessionTicket ([CVE-2015-1791])
562
563### Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
564
565  * OpenSSL 1.0.2 ClientHello sigalgs DoS fix ([CVE-2015-0291])
566  * Multiblock corrupted pointer fix ([CVE-2015-0290])
567  * Segmentation fault in DTLSv1_listen fix ([CVE-2015-0207])
568  * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
569  * Segmentation fault for invalid PSS parameters fix ([CVE-2015-0208])
570  * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
571  * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
572  * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
573  * Empty CKE with client auth and DHE fix ([CVE-2015-1787])
574  * Handshake with unseeded PRNG fix ([CVE-2015-0285])
575  * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
576  * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
577  * Removed the export ciphers from the DEFAULT ciphers
578
579### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]
580
581  * Suite B support for TLS 1.2 and DTLS 1.2
582  * Support for DTLS 1.2
583  * TLS automatic EC curve selection.
584  * API to set TLS supported signature algorithms and curves
585  * SSL_CONF configuration API.
586  * TLS Brainpool support.
587  * ALPN support.
588  * CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
589
590OpenSSL 1.0.1
591-------------
592
593### Major changes between OpenSSL 1.0.1t and OpenSSL 1.0.1u [22 Sep 2016]
594
595  * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
596  * SWEET32 Mitigation ([CVE-2016-2183])
597  * OOB write in MDC2_Update() ([CVE-2016-6303])
598  * Malformed SHA512 ticket DoS ([CVE-2016-6302])
599  * OOB write in BN_bn2dec() ([CVE-2016-2182])
600  * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
601  * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
602  * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
603  * DTLS buffered message DoS ([CVE-2016-2179])
604  * DTLS replay protection DoS ([CVE-2016-2181])
605  * Certificate message OOB reads ([CVE-2016-6306])
606
607### Major changes between OpenSSL 1.0.1s and OpenSSL 1.0.1t [3 May 2016]
608
609  * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
610  * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
611  * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
612  * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
613  * EBCDIC overread ([CVE-2016-2176])
614  * Modify behavior of ALPN to invoke callback after SNI/servername
615    callback, such that updates to the SSL_CTX affect ALPN.
616  * Remove LOW from the DEFAULT cipher list.  This removes singles DES from
617    the default.
618  * Only remove the SSLv2 methods with the no-ssl2-method option.
619
620### Major changes between OpenSSL 1.0.1r and OpenSSL 1.0.1s [1 Mar 2016]
621
622  * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
623  * Disable SSLv2 default build, default negotiation and weak ciphers
624    ([CVE-2016-0800])
625  * Fix a double-free in DSA code ([CVE-2016-0705])
626  * Disable SRP fake user seed to address a server memory leak
627    ([CVE-2016-0798])
628  * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
629    ([CVE-2016-0797])
630  * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
631  * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
632
633### Major changes between OpenSSL 1.0.1q and OpenSSL 1.0.1r [28 Jan 2016]
634
635  * Protection for DH small subgroup attacks
636  * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
637
638### Major changes between OpenSSL 1.0.1p and OpenSSL 1.0.1q [3 Dec 2015]
639
640  * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
641  * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
642  * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
643  * In DSA_generate_parameters_ex, if the provided seed is too short,
644    return an error
645
646### Major changes between OpenSSL 1.0.1o and OpenSSL 1.0.1p [9 Jul 2015]
647
648  * Alternate chains certificate forgery ([CVE-2015-1793])
649  * Race condition handling PSK identify hint ([CVE-2015-3196])
650
651### Major changes between OpenSSL 1.0.1n and OpenSSL 1.0.1o [12 Jun 2015]
652
653  * Fix HMAC ABI incompatibility
654
655### Major changes between OpenSSL 1.0.1m and OpenSSL 1.0.1n [11 Jun 2015]
656
657  * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
658  * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
659  * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
660  * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
661  * Race condition handling NewSessionTicket ([CVE-2015-1791])
662
663### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.1m [19 Mar 2015]
664
665  * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
666  * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
667  * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
668  * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
669  * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
670  * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
671  * Removed the export ciphers from the DEFAULT ciphers
672
673### Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
674
675  * Build fixes for the Windows and OpenVMS platforms
676
677### Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
678
679  * Fix for [CVE-2014-3571]
680  * Fix for [CVE-2015-0206]
681  * Fix for [CVE-2014-3569]
682  * Fix for [CVE-2014-3572]
683  * Fix for [CVE-2015-0204]
684  * Fix for [CVE-2015-0205]
685  * Fix for [CVE-2014-8275]
686  * Fix for [CVE-2014-3570]
687
688### Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
689
690  * Fix for [CVE-2014-3513]
691  * Fix for [CVE-2014-3567]
692  * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
693  * Fix for [CVE-2014-3568]
694
695### Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
696
697  * Fix for [CVE-2014-3512]
698  * Fix for [CVE-2014-3511]
699  * Fix for [CVE-2014-3510]
700  * Fix for [CVE-2014-3507]
701  * Fix for [CVE-2014-3506]
702  * Fix for [CVE-2014-3505]
703  * Fix for [CVE-2014-3509]
704  * Fix for [CVE-2014-5139]
705  * Fix for [CVE-2014-3508]
706
707### Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
708
709  * Fix for [CVE-2014-0224]
710  * Fix for [CVE-2014-0221]
711  * Fix for [CVE-2014-0198]
712  * Fix for [CVE-2014-0195]
713  * Fix for [CVE-2014-3470]
714  * Fix for [CVE-2010-5298]
715
716### Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
717
718  * Fix for [CVE-2014-0160]
719  * Add TLS padding extension workaround for broken servers.
720  * Fix for [CVE-2014-0076]
721
722### Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
723
724  * Don't include gmt_unix_time in TLS server and client random values
725  * Fix for TLS record tampering bug ([CVE-2013-4353])
726  * Fix for TLS version checking bug ([CVE-2013-6449])
727  * Fix for DTLS retransmission bug ([CVE-2013-6450])
728
729### Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]
730
731  * Corrected fix for ([CVE-2013-0169])
732
733### Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]
734
735  * Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
736  * Include the fips configuration module.
737  * Fix OCSP bad key DoS attack ([CVE-2013-0166])
738  * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
739  * Fix for TLS AESNI record handling flaw ([CVE-2012-2686])
740
741### Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]
742
743  * Fix TLS/DTLS record length checking bug ([CVE-2012-2333])
744  * Don't attempt to use non-FIPS composite ciphers in FIPS mode.
745
746### Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]
747
748  * Fix compilation error on non-x86 platforms.
749  * Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
750  * Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
751
752### Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]
753
754  * Fix for ASN1 overflow bug ([CVE-2012-2110])
755  * Workarounds for some servers that hang on long client hellos.
756  * Fix SEGV in AES code.
757
758### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]
759
760  * TLS/DTLS heartbeat support.
761  * SCTP support.
762  * RFC 5705 TLS key material exporter.
763  * RFC 5764 DTLS-SRTP negotiation.
764  * Next Protocol Negotiation.
765  * PSS signatures in certificates, requests and CRLs.
766  * Support for password based recipient info for CMS.
767  * Support TLS v1.2 and TLS v1.1.
768  * Preliminary FIPS capability for unvalidated 2.0 FIPS module.
769  * SRP support.
770
771OpenSSL 1.0.0
772-------------
773
774### Major changes between OpenSSL 1.0.0s and OpenSSL 1.0.0t [3 Dec 2015]
775
776  * X509_ATTRIBUTE memory leak (([CVE-2015-3195]))
777  * Race condition handling PSK identify hint ([CVE-2015-3196])
778
779### Major changes between OpenSSL 1.0.0r and OpenSSL 1.0.0s [11 Jun 2015]
780
781  * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
782  * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
783  * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
784  * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
785  * Race condition handling NewSessionTicket ([CVE-2015-1791])
786
787### Major changes between OpenSSL 1.0.0q and OpenSSL 1.0.0r [19 Mar 2015]
788
789  * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
790  * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
791  * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
792  * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
793  * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
794  * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
795  * Removed the export ciphers from the DEFAULT ciphers
796
797### Major changes between OpenSSL 1.0.0p and OpenSSL 1.0.0q [15 Jan 2015]
798
799  * Build fixes for the Windows and OpenVMS platforms
800
801### Major changes between OpenSSL 1.0.0o and OpenSSL 1.0.0p [8 Jan 2015]
802
803  * Fix for [CVE-2014-3571]
804  * Fix for [CVE-2015-0206]
805  * Fix for [CVE-2014-3569]
806  * Fix for [CVE-2014-3572]
807  * Fix for [CVE-2015-0204]
808  * Fix for [CVE-2015-0205]
809  * Fix for [CVE-2014-8275]
810  * Fix for [CVE-2014-3570]
811
812### Major changes between OpenSSL 1.0.0n and OpenSSL 1.0.0o [15 Oct 2014]
813
814  * Fix for [CVE-2014-3513]
815  * Fix for [CVE-2014-3567]
816  * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
817  * Fix for [CVE-2014-3568]
818
819### Major changes between OpenSSL 1.0.0m and OpenSSL 1.0.0n [6 Aug 2014]
820
821  * Fix for [CVE-2014-3510]
822  * Fix for [CVE-2014-3507]
823  * Fix for [CVE-2014-3506]
824  * Fix for [CVE-2014-3505]
825  * Fix for [CVE-2014-3509]
826  * Fix for [CVE-2014-3508]
827
828  Known issues in OpenSSL 1.0.0m:
829
830  * EAP-FAST and other applications using tls_session_secret_cb
831    won't resume sessions. Fixed in 1.0.0n-dev
832  * Compilation failure of s3_pkt.c on some platforms due to missing
833    `<limits.h>` include. Fixed in 1.0.0n-dev
834
835### Major changes between OpenSSL 1.0.0l and OpenSSL 1.0.0m [5 Jun 2014]
836
837  * Fix for [CVE-2014-0224]
838  * Fix for [CVE-2014-0221]
839  * Fix for [CVE-2014-0198]
840  * Fix for [CVE-2014-0195]
841  * Fix for [CVE-2014-3470]
842  * Fix for [CVE-2014-0076]
843  * Fix for [CVE-2010-5298]
844
845### Major changes between OpenSSL 1.0.0k and OpenSSL 1.0.0l [6 Jan 2014]
846
847  * Fix for DTLS retransmission bug ([CVE-2013-6450])
848
849### Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]
850
851  * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
852  * Fix OCSP bad key DoS attack ([CVE-2013-0166])
853
854### Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]
855
856  * Fix DTLS record length checking bug ([CVE-2012-2333])
857
858### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]
859
860  * Fix for ASN1 overflow bug ([CVE-2012-2110])
861
862### Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]
863
864  * Fix for CMS/PKCS#7 MMA ([CVE-2012-0884])
865  * Corrected fix for ([CVE-2011-4619])
866  * Various DTLS fixes.
867
868### Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]
869
870  * Fix for DTLS DoS issue ([CVE-2012-0050])
871
872### Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]
873
874  * Fix for DTLS plaintext recovery attack ([CVE-2011-4108])
875  * Clear block padding bytes of SSL 3.0 records ([CVE-2011-4576])
876  * Only allow one SGC handshake restart for SSL/TLS ([CVE-2011-4619])
877  * Check parameters are not NULL in GOST ENGINE ([CVE-2012-0027])
878  * Check for malformed RFC3779 data ([CVE-2011-4577])
879
880### Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]
881
882  * Fix for CRL vulnerability issue ([CVE-2011-3207])
883  * Fix for ECDH crashes ([CVE-2011-3210])
884  * Protection against EC timing attacks.
885  * Support ECDH ciphersuites for certificates using SHA2 algorithms.
886  * Various DTLS fixes.
887
888### Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]
889
890  * Fix for security issue ([CVE-2011-0014])
891
892### Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]
893
894  * Fix for security issue ([CVE-2010-4180])
895  * Fix for ([CVE-2010-4252])
896  * Fix mishandling of absent EC point format extension.
897  * Fix various platform compilation issues.
898  * Corrected fix for security issue ([CVE-2010-3864]).
899
900### Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]
901
902  * Fix for security issue ([CVE-2010-3864]).
903  * Fix for ([CVE-2010-2939])
904  * Fix WIN32 build system for GOST ENGINE.
905
906### Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]
907
908  * Fix for security issue ([CVE-2010-1633]).
909  * GOST MAC and CFB fixes.
910
911### Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]
912
913  * RFC3280 path validation: sufficient to process PKITS tests.
914  * Integrated support for PVK files and keyblobs.
915  * Change default private key format to PKCS#8.
916  * CMS support: able to process all examples in RFC4134
917  * Streaming ASN1 encode support for PKCS#7 and CMS.
918  * Multiple signer and signer add support for PKCS#7 and CMS.
919  * ASN1 printing support.
920  * Whirlpool hash algorithm added.
921  * RFC3161 time stamp support.
922  * New generalised public key API supporting ENGINE based algorithms.
923  * New generalised public key API utilities.
924  * New ENGINE supporting GOST algorithms.
925  * SSL/TLS GOST ciphersuite support.
926  * PKCS#7 and CMS GOST support.
927  * RFC4279 PSK ciphersuite support.
928  * Supported points format extension for ECC ciphersuites.
929  * ecdsa-with-SHA224/256/384/512 signature types.
930  * dsa-with-SHA224 and dsa-with-SHA256 signature types.
931  * Opaque PRF Input TLS extension support.
932  * Updated time routines to avoid OS limitations.
933
934OpenSSL 0.9.x
935-------------
936
937### Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]
938
939  * CFB cipher definition fixes.
940  * Fix security issues [CVE-2010-0740] and [CVE-2010-0433].
941
942### Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]
943
944  * Cipher definition fixes.
945  * Workaround for slow RAND_poll() on some WIN32 versions.
946  * Remove MD2 from algorithm tables.
947  * SPKAC handling fixes.
948  * Support for RFC5746 TLS renegotiation extension.
949  * Compression memory leak fixed.
950  * Compression session resumption fixed.
951  * Ticket and SNI coexistence fixes.
952  * Many fixes to DTLS handling.
953
954### Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]
955
956  * Temporary work around for [CVE-2009-3555]: disable renegotiation.
957
958### Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]
959
960  * Fix various build issues.
961  * Fix security issues [CVE-2009-0590], [CVE-2009-0591], [CVE-2009-0789]
962
963### Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]
964
965  * Fix security issue ([CVE-2008-5077])
966  * Merge FIPS 140-2 branch code.
967
968### Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]
969
970  * CryptoAPI ENGINE support.
971  * Various precautionary measures.
972  * Fix for bugs affecting certificate request creation.
973  * Support for local machine keyset attribute in PKCS#12 files.
974
975### Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]
976
977  * Backport of CMS functionality to 0.9.8.
978  * Fixes for bugs introduced with 0.9.8f.
979
980### Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]
981
982  * Add gcc 4.2 support.
983  * Add support for AES and SSE2 assembly language optimization
984    for VC++ build.
985  * Support for RFC4507bis and server name extensions if explicitly
986    selected at compile time.
987  * DTLS improvements.
988  * RFC4507bis support.
989  * TLS Extensions support.
990
991### Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]
992
993  * Various ciphersuite selection fixes.
994  * RFC3779 support.
995
996### Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]
997
998  * Introduce limits to prevent malicious key DoS  ([CVE-2006-2940])
999  * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1000  * Changes to ciphersuite selection algorithm
1001
1002### Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]
1003
1004  * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1005  * New cipher Camellia
1006
1007### Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]
1008
1009  * Cipher string fixes.
1010  * Fixes for VC++ 2005.
1011  * Updated ECC cipher suite support.
1012  * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
1013  * Zlib compression usage fixes.
1014  * Built in dynamic engine compilation support on Win32.
1015  * Fixes auto dynamic engine loading in Win32.
1016
1017### Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]
1018
1019  * Fix potential SSL 2.0 rollback ([CVE-2005-2969])
1020  * Extended Windows CE support
1021
1022### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]
1023
1024  * Major work on the BIGNUM library for higher efficiency and to
1025    make operations more streamlined and less contradictory.  This
1026    is the result of a major audit of the BIGNUM library.
1027  * Addition of BIGNUM functions for fields GF(2^m) and NIST
1028    curves, to support the Elliptic Crypto functions.
1029  * Major work on Elliptic Crypto; ECDH and ECDSA added, including
1030    the use through EVP, X509 and ENGINE.
1031  * New ASN.1 mini-compiler that's usable through the OpenSSL
1032    configuration file.
1033  * Added support for ASN.1 indefinite length constructed encoding.
1034  * New PKCS#12 'medium level' API to manipulate PKCS#12 files.
1035  * Complete rework of shared library construction and linking
1036    programs with shared or static libraries, through a separate
1037    Makefile.shared.
1038  * Rework of the passing of parameters from one Makefile to another.
1039  * Changed ENGINE framework to load dynamic engine modules
1040    automatically from specifically given directories.
1041  * New structure and ASN.1 functions for CertificatePair.
1042  * Changed the ZLIB compression method to be stateful.
1043  * Changed the key-generation and primality testing "progress"
1044    mechanism to take a structure that contains the ticker
1045    function and an argument.
1046  * New engine module: GMP (performs private key exponentiation).
1047  * New engine module: VIA PadLOck ACE extension in VIA C3
1048    Nehemiah processors.
1049  * Added support for IPv6 addresses in certificate extensions.
1050    See RFC 1884, section 2.2.
1051  * Added support for certificate policy mappings, policy
1052    constraints and name constraints.
1053  * Added support for multi-valued AVAs in the OpenSSL
1054    configuration file.
1055  * Added support for multiple certificates with the same subject
1056    in the 'openssl ca' index file.
1057  * Make it possible to create self-signed certificates using
1058    'openssl ca -selfsign'.
1059  * Make it possible to generate a serial number file with
1060    'openssl ca -create_serial'.
1061  * New binary search functions with extended functionality.
1062  * New BUF functions.
1063  * New STORE structure and library to provide an interface to all
1064    sorts of data repositories.  Supports storage of public and
1065    private keys, certificates, CRLs, numbers and arbitrary blobs.
1066    This library is unfortunately unfinished and unused within
1067    OpenSSL.
1068  * New control functions for the error stack.
1069  * Changed the PKCS#7 library to support one-pass S/MIME
1070    processing.
1071  * Added the possibility to compile without old deprecated
1072    functionality with the OPENSSL_NO_DEPRECATED macro or the
1073    'no-deprecated' argument to the config and Configure scripts.
1074  * Constification of all ASN.1 conversion functions, and other
1075    affected functions.
1076  * Improved platform support for PowerPC.
1077  * New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
1078  * New X509_VERIFY_PARAM structure to support parameterisation
1079  of X.509 path validation.
1080  * Major overhaul of RC4 performance on Intel P4, IA-64 and
1081    AMD64.
1082  * Changed the Configure script to have some algorithms disabled
1083    by default.  Those can be explicitly enabled with the new
1084    argument form 'enable-xxx'.
1085  * Change the default digest in 'openssl' commands from MD5 to
1086    SHA-1.
1087  * Added support for DTLS.
1088  * New BIGNUM blinding.
1089  * Added support for the RSA-PSS encryption scheme
1090  * Added support for the RSA X.931 padding.
1091  * Added support for BSD sockets on NetWare.
1092  * Added support for files larger than 2GB.
1093  * Added initial support for Win64.
1094  * Added alternate pkg-config files.
1095
1096### Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]
1097
1098  * FIPS 1.1.1 module linking.
1099  * Various ciphersuite selection fixes.
1100
1101### Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]
1102
1103  * Introduce limits to prevent malicious key DoS  ([CVE-2006-2940])
1104  * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1105
1106### Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]
1107
1108  * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1109
1110### Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]
1111
1112  * Visual C++ 2005 fixes.
1113  * Update Windows build system for FIPS.
1114
1115### Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]
1116
1117  * Give EVP_MAX_MD_SIZE its old value, except for a FIPS build.
1118
1119### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]
1120
1121  * Fix SSL 2.0 Rollback ([CVE-2005-2969])
1122  * Allow use of fixed-length exponent on DSA signing
1123  * Default fixed-window RSA, DSA, DH private-key operations
1124
1125### Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]
1126
1127  * More compilation issues fixed.
1128  * Adaptation to more modern Kerberos API.
1129  * Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
1130  * Enhanced x86_64 assembler BIGNUM module.
1131  * More constification.
1132  * Added processing of proxy certificates (RFC 3820).
1133
1134### Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]
1135
1136  * Several compilation issues fixed.
1137  * Many memory allocation failure checks added.
1138  * Improved comparison of X509 Name type.
1139  * Mandatory basic checks on certificates.
1140  * Performance improvements.
1141
1142### Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]
1143
1144  * Fix race condition in CRL checking code.
1145  * Fixes to PKCS#7 (S/MIME) code.
1146
1147### Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]
1148
1149  * Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
1150  * Security: Fix null-pointer assignment in do_change_cipher_spec()
1151  * Allow multiple active certificates with same subject in CA index
1152  * Multiple X509 verification fixes
1153  * Speed up HMAC and other operations
1154
1155### Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]
1156
1157  * Security: fix various ASN1 parsing bugs.
1158  * New -ignore_err option to OCSP utility.
1159  * Various interop and bug fixes in S/MIME code.
1160  * SSL/TLS protocol fix for unrequested client certificates.
1161
1162### Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]
1163
1164  * Security: counter the Klima-Pokorny-Rosa extension of
1165    Bleichbacher's attack
1166  * Security: make RSA blinding default.
1167  * Configuration: Irix fixes, AIX fixes, better mingw support.
1168  * Support for new platforms: linux-ia64-ecc.
1169  * Build: shared library support fixes.
1170  * ASN.1: treat domainComponent correctly.
1171  * Documentation: fixes and additions.
1172
1173### Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]
1174
1175  * Security: Important security related bugfixes.
1176  * Enhanced compatibility with MIT Kerberos.
1177  * Can be built without the ENGINE framework.
1178  * IA32 assembler enhancements.
1179  * Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
1180  * Configuration: the no-err option now works properly.
1181  * SSL/TLS: now handles manual certificate chain building.
1182  * SSL/TLS: certain session ID malfunctions corrected.
1183
1184### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]
1185
1186  * New library section OCSP.
1187  * Complete rewrite of ASN1 code.
1188  * CRL checking in verify code and openssl utility.
1189  * Extension copying in 'ca' utility.
1190  * Flexible display options in 'ca' utility.
1191  * Provisional support for international characters with UTF8.
1192  * Support for external crypto devices ('engine') is no longer
1193    a separate distribution.
1194  * New elliptic curve library section.
1195  * New AES (Rijndael) library section.
1196  * Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
1197    Linux x86_64, Linux 64-bit on Sparc v9
1198  * Extended support for some platforms: VxWorks
1199  * Enhanced support for shared libraries.
1200  * Now only builds PIC code when shared library support is requested.
1201  * Support for pkg-config.
1202  * Lots of new manuals.
1203  * Makes symbolic links to or copies of manuals to cover all described
1204    functions.
1205  * Change DES API to clean up the namespace (some applications link also
1206    against libdes providing similar functions having the same name).
1207    Provide macros for backward compatibility (will be removed in the
1208    future).
1209  * Unify handling of cryptographic algorithms (software and engine)
1210    to be available via EVP routines for asymmetric and symmetric ciphers.
1211  * NCONF: new configuration handling routines.
1212  * Change API to use more 'const' modifiers to improve error checking
1213    and help optimizers.
1214  * Finally remove references to RSAref.
1215  * Reworked parts of the BIGNUM code.
1216  * Support for new engines: Broadcom ubsec, Accelerated Encryption
1217    Processing, IBM 4758.
1218  * A few new engines added in the demos area.
1219  * Extended and corrected OID (object identifier) table.
1220  * PRNG: query at more locations for a random device, automatic query for
1221    EGD style random sources at several locations.
1222  * SSL/TLS: allow optional cipher choice according to server's preference.
1223  * SSL/TLS: allow server to explicitly set new session ids.
1224  * SSL/TLS: support Kerberos cipher suites (RFC2712).
1225    Only supports MIT Kerberos for now.
1226  * SSL/TLS: allow more precise control of renegotiations and sessions.
1227  * SSL/TLS: add callback to retrieve SSL/TLS messages.
1228  * SSL/TLS: support AES cipher suites (RFC3268).
1229
1230### Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]
1231
1232  * Security: fix various ASN1 parsing bugs.
1233  * SSL/TLS protocol fix for unrequested client certificates.
1234
1235### Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]
1236
1237  * Security: counter the Klima-Pokorny-Rosa extension of
1238    Bleichbacher's attack
1239  * Security: make RSA blinding default.
1240  * Build: shared library support fixes.
1241
1242### Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]
1243
1244  * Important security related bugfixes.
1245
1246### Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]
1247
1248  * New configuration targets for Tandem OSS and A/UX.
1249  * New OIDs for Microsoft attributes.
1250  * Better handling of SSL session caching.
1251  * Better comparison of distinguished names.
1252  * Better handling of shared libraries in a mixed GNU/non-GNU environment.
1253  * Support assembler code with Borland C.
1254  * Fixes for length problems.
1255  * Fixes for uninitialised variables.
1256  * Fixes for memory leaks, some unusual crashes and some race conditions.
1257  * Fixes for smaller building problems.
1258  * Updates of manuals, FAQ and other instructive documents.
1259
1260### Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]
1261
1262  * Important building fixes on Unix.
1263
1264### Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]
1265
1266  * Various important bugfixes.
1267
1268### Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]
1269
1270  * Important security related bugfixes.
1271  * Various SSL/TLS library bugfixes.
1272
1273### Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]
1274
1275  * Various SSL/TLS library bugfixes.
1276  * Fix DH parameter generation for 'non-standard' generators.
1277
1278### Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]
1279
1280  * Various SSL/TLS library bugfixes.
1281  * BIGNUM library fixes.
1282  * RSA OAEP and random number generation fixes.
1283  * Object identifiers corrected and added.
1284  * Add assembler BN routines for IA64.
1285  * Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
1286    MIPS Linux; shared library support for Irix, HP-UX.
1287  * Add crypto accelerator support for AEP, Baltimore SureWare,
1288    Broadcom and Cryptographic Appliance's keyserver
1289    [in 0.9.6c-engine release].
1290
1291### Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]
1292
1293  * Security fix: PRNG improvements.
1294  * Security fix: RSA OAEP check.
1295  * Security fix: Reinsert and fix countermeasure to Bleichbacher's
1296    attack.
1297  * MIPS bug fix in BIGNUM.
1298  * Bug fix in "openssl enc".
1299  * Bug fix in X.509 printing routine.
1300  * Bug fix in DSA verification routine and DSA S/MIME verification.
1301  * Bug fix to make PRNG thread-safe.
1302  * Bug fix in RAND_file_name().
1303  * Bug fix in compatibility mode trust settings.
1304  * Bug fix in blowfish EVP.
1305  * Increase default size for BIO buffering filter.
1306  * Compatibility fixes in some scripts.
1307
1308### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]
1309
1310  * Security fix: change behavior of OpenSSL to avoid using
1311    environment variables when running as root.
1312  * Security fix: check the result of RSA-CRT to reduce the
1313    possibility of deducing the private key from an incorrectly
1314    calculated signature.
1315  * Security fix: prevent Bleichenbacher's DSA attack.
1316  * Security fix: Zero the premaster secret after deriving the
1317    master secret in DH ciphersuites.
1318  * Reimplement SSL_peek(), which had various problems.
1319  * Compatibility fix: the function des_encrypt() renamed to
1320    des_encrypt1() to avoid clashes with some Unixen libc.
1321  * Bug fixes for Win32, HP/UX and Irix.
1322  * Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
1323    memory checking routines.
1324  * Bug fixes for RSA operations in threaded environments.
1325  * Bug fixes in misc. openssl applications.
1326  * Remove a few potential memory leaks.
1327  * Add tighter checks of BIGNUM routines.
1328  * Shared library support has been reworked for generality.
1329  * More documentation.
1330  * New function BN_rand_range().
1331  * Add "-rand" option to openssl s_client and s_server.
1332
1333### Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]
1334
1335  * Some documentation for BIO and SSL libraries.
1336  * Enhanced chain verification using key identifiers.
1337  * New sign and verify options to 'dgst' application.
1338  * Support for DER and PEM encoded messages in 'smime' application.
1339  * New 'rsautl' application, low-level RSA utility.
1340  * MD4 now included.
1341  * Bugfix for SSL rollback padding check.
1342  * Support for external crypto devices [1].
1343  * Enhanced EVP interface.
1344
1345  [1] The support for external crypto devices is currently a separate
1346      distribution.  See the file README-Engine.md.
1347
1348### Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]
1349
1350  * Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
1351  * Shared library support for HPUX and Solaris-gcc
1352  * Support of Linux/IA64
1353  * Assembler support for Mingw32
1354  * New 'rand' application
1355  * New way to check for existence of algorithms from scripts
1356
1357### Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]
1358
1359  * S/MIME support in new 'smime' command
1360  * Documentation for the OpenSSL command line application
1361  * Automation of 'req' application
1362  * Fixes to make s_client, s_server work under Windows
1363  * Support for multiple fieldnames in SPKACs
1364  * New SPKAC command line utility and associated library functions
1365  * Options to allow passwords to be obtained from various sources
1366  * New public key PEM format and options to handle it
1367  * Many other fixes and enhancements to command line utilities
1368  * Usable certificate chain verification
1369  * Certificate purpose checking
1370  * Certificate trust settings
1371  * Support of authority information access extension
1372  * Extensions in certificate requests
1373  * Simplified X509 name and attribute routines
1374  * Initial (incomplete) support for international character sets
1375  * New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
1376  * Read only memory BIOs and simplified creation function
1377  * TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
1378    record; allow fragmentation and interleaving of handshake and other
1379    data
1380  * TLS/SSL code now "tolerates" MS SGC
1381  * Work around for Netscape client certificate hang bug
1382  * RSA_NULL option that removes RSA patent code but keeps other
1383    RSA functionality
1384  * Memory leak detection now allows applications to add extra information
1385    via a per-thread stack
1386  * PRNG robustness improved
1387  * EGD support
1388  * BIGNUM library bug fixes
1389  * Faster DSA parameter generation
1390  * Enhanced support for Alpha Linux
1391  * Experimental macOS support
1392
1393### Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]
1394
1395  * Transparent support for PKCS#8 format private keys: these are used
1396    by several software packages and are more secure than the standard
1397    form
1398  * PKCS#5 v2.0 implementation
1399  * Password callbacks have a new void * argument for application data
1400  * Avoid various memory leaks
1401  * New pipe-like BIO that allows using the SSL library when actual I/O
1402    must be handled by the application (BIO pair)
1403
1404### Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]
1405
1406  * Lots of enhancements and cleanups to the Configuration mechanism
1407  * RSA OEAP related fixes
1408  * Added "openssl ca -revoke" option for revoking a certificate
1409  * Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
1410  * Source tree cleanups: removed lots of obsolete files
1411  * Thawte SXNet, certificate policies and CRL distribution points
1412    extension support
1413  * Preliminary (experimental) S/MIME support
1414  * Support for ASN.1 UTF8String and VisibleString
1415  * Full integration of PKCS#12 code
1416  * Sparc assembler bignum implementation, optimized hash functions
1417  * Option to disable selected ciphers
1418
1419### Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]
1420
1421  * Fixed a security hole related to session resumption
1422  * Fixed RSA encryption routines for the p < q case
1423  * "ALL" in cipher lists now means "everything except NULL ciphers"
1424  * Support for Triple-DES CBCM cipher
1425  * Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
1426  * First support for new TLSv1 ciphers
1427  * Added a few new BIOs (syslog BIO, reliable BIO)
1428  * Extended support for DSA certificate/keys.
1429  * Extended support for Certificate Signing Requests (CSR)
1430  * Initial support for X.509v3 extensions
1431  * Extended support for compression inside the SSL record layer
1432  * Overhauled Win32 builds
1433  * Cleanups and fixes to the Big Number (BN) library
1434  * Support for ASN.1 GeneralizedTime
1435  * Splitted ASN.1 SETs from SEQUENCEs
1436  * ASN1 and PEM support for Netscape Certificate Sequences
1437  * Overhauled Perl interface
1438  * Lots of source tree cleanups.
1439  * Lots of memory leak fixes.
1440  * Lots of bug fixes.
1441
1442### Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]
1443
1444  * Integration of the popular NO_RSA/NO_DSA patches
1445  * Initial support for compression inside the SSL record layer
1446  * Added BIO proxy and filtering functionality
1447  * Extended Big Number (BN) library
1448  * Added RIPE MD160 message digest
1449  * Added support for RC2/64bit cipher
1450  * Extended ASN.1 parser routines
1451  * Adjustments of the source tree for CVS
1452  * Support for various new platforms
1453
1454<!-- Links -->
1455
1456[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807
1457[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817
1458[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446
1459[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975
1460[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650
1461[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255
1462[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466
1463[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465
1464[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464
1465[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401
1466[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286
1467[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217
1468[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216
1469[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215
1470[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450
1471[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304
1472[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203
1473[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996
1474[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274
1475[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097
1476[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971
1477[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967
1478[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563
1479[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559
1480[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552
1481[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551
1482[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549
1483[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547
1484[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543
1485[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407
1486[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739
1487[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737
1488[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735
1489[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734
1490[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733
1491[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732
1492[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738
1493[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737
1494[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736
1495[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735
1496[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733
1497[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732
1498[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731
1499[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730
1500[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055
1501[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054
1502[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053
1503[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052
1504[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309
1505[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308
1506[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307
1507[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306
1508[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305
1509[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304
1510[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303
1511[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302
1512[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183
1513[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182
1514[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181
1515[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180
1516[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179
1517[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178
1518[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177
1519[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176
1520[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109
1521[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107
1522[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106
1523[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105
1524[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800
1525[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799
1526[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798
1527[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797
1528[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705
1529[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702
1530[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701
1531[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197
1532[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196
1533[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195
1534[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194
1535[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193
1536[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793
1537[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792
1538[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791
1539[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790
1540[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789
1541[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788
1542[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787
1543[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293
1544[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291
1545[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290
1546[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289
1547[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288
1548[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287
1549[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286
1550[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285
1551[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209
1552[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208
1553[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207
1554[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206
1555[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205
1556[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204
1557[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275
1558[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139
1559[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572
1560[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571
1561[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570
1562[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569
1563[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568
1564[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567
1565[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566
1566[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513
1567[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512
1568[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511
1569[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510
1570[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509
1571[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508
1572[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507
1573[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506
1574[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505
1575[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470
1576[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224
1577[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221
1578[CVE-2014-0198]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0198
1579[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195
1580[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160
1581[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076
1582[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450
1583[CVE-2013-6449]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6449
1584[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353
1585[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169
1586[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166
1587[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686
1588[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333
1589[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110
1590[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884
1591[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050
1592[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027
1593[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619
1594[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577
1595[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576
1596[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108
1597[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210
1598[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207
1599[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014
1600[CVE-2010-5298]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-5298
1601[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252
1602[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180
1603[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864
1604[CVE-2010-2939]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-2939
1605[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633
1606[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740
1607[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433
1608[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555
1609[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789
1610[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591
1611[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590
1612[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077
1613[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343
1614[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339
1615[CVE-2006-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3737
1616[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940
1617[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937
1618[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969
1619