xref: /freebsd/crypto/openssl/NEWS.md (revision 1da7f3f6f72b2245e458fc7195733268ae4a1136)
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 3.0.11 and OpenSSL 3.0.12 [24 Oct 2023]
22
23  * Mitigate incorrect resize handling for symmetric cipher keys and IVs.
24    ([CVE-2023-5363])
25
26### Major changes between OpenSSL 3.0.10 and OpenSSL 3.0.11 [19 Sep 2023]
27
28  * Fix POLY1305 MAC implementation corrupting XMM registers on Windows
29    ([CVE-2023-4807])
30
31### Major changes between OpenSSL 3.0.9 and OpenSSL 3.0.10 [1 Aug 2023]
32
33  * Fix excessive time spent checking DH q parameter value ([CVE-2023-3817])
34  * Fix DH_check() excessive time with over sized modulus ([CVE-2023-3446])
35  * Do not ignore empty associated data entries with AES-SIV ([CVE-2023-2975])
36
37### Major changes between OpenSSL 3.0.8 and OpenSSL 3.0.9 [30 May 2023]
38
39  * Mitigate for very slow `OBJ_obj2txt()` performance with gigantic OBJECT
40    IDENTIFIER sub-identities.  ([CVE-2023-2650])
41  * Fixed buffer overread in AES-XTS decryption on ARM 64 bit platforms
42    ([CVE-2023-1255])
43  * Fixed documentation of X509_VERIFY_PARAM_add0_policy() ([CVE-2023-0466])
44  * Fixed handling of invalid certificate policies in leaf certificates
45    ([CVE-2023-0465])
46  * Limited the number of nodes created in a policy tree ([CVE-2023-0464])
47
48### Major changes between OpenSSL 3.0.7 and OpenSSL 3.0.8 [7 Feb 2023]
49
50  * Fixed NULL dereference during PKCS7 data verification ([CVE-2023-0401])
51  * Fixed X.400 address type confusion in X.509 GeneralName ([CVE-2023-0286])
52  * Fixed NULL dereference validating DSA public key ([CVE-2023-0217])
53  * Fixed Invalid pointer dereference in d2i_PKCS7 functions ([CVE-2023-0216])
54  * Fixed Use-after-free following BIO_new_NDEF ([CVE-2023-0215])
55  * Fixed Double free after calling PEM_read_bio_ex ([CVE-2022-4450])
56  * Fixed Timing Oracle in RSA Decryption ([CVE-2022-4304])
57  * Fixed X.509 Name Constraints Read Buffer Overflow ([CVE-2022-4203])
58  * Fixed X.509 Policy Constraints Double Locking ([CVE-2022-3996])
59
60### Major changes between OpenSSL 3.0.6 and OpenSSL 3.0.7 [1 Nov 2022]
61
62  * Added RIPEMD160 to the default provider.
63  * Fixed regressions introduced in 3.0.6 version.
64  * Fixed two buffer overflows in punycode decoding functions.
65    ([CVE-2022-3786]) and ([CVE-2022-3602])
66
67### Major changes between OpenSSL 3.0.5 and OpenSSL 3.0.6 [11 Oct 2022]
68
69  * Fix for custom ciphers to prevent accidental use of NULL encryption
70    ([CVE-2022-3358])
71
72### Major changes between OpenSSL 3.0.4 and OpenSSL 3.0.5 [5 Jul 2022]
73
74  * Fixed heap memory corruption with RSA private key operation
75    ([CVE-2022-2274])
76  * Fixed AES OCB failure to encrypt some bytes on 32-bit x86 platforms
77    ([CVE-2022-2097])
78
79### Major changes between OpenSSL 3.0.3 and OpenSSL 3.0.4 [21 Jun 2022]
80
81  * Fixed additional bugs in the c_rehash script which was not properly
82    sanitising shell metacharacters to prevent command injection
83    ([CVE-2022-2068])
84
85### Major changes between OpenSSL 3.0.2 and OpenSSL 3.0.3 [3 May 2022]
86
87  * Fixed a bug in the c_rehash script which was not properly sanitising shell
88    metacharacters to prevent command injection ([CVE-2022-1292])
89  * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer
90    certificate on an OCSP response ([CVE-2022-1343])
91  * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the
92    AAD data as the MAC key ([CVE-2022-1434])
93  * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory
94    occuppied by the removed hash table entries ([CVE-2022-1473])
95
96### Major changes between OpenSSL 3.0.1 and OpenSSL 3.0.2 [15 Mar 2022]
97
98  * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever
99    for non-prime moduli ([CVE-2022-0778])
100
101### Major changes between OpenSSL 3.0.0 and OpenSSL 3.0.1 [14 Dec 2021]
102
103  * Fixed invalid handling of X509_verify_cert() internal errors in libssl
104    ([CVE-2021-4044])
105  * Allow fetching an operation from the provider that owns an unexportable key
106    as a fallback if that is still allowed by the property query.
107
108### Major changes between OpenSSL 1.1.1 and OpenSSL 3.0.0 [7 sep 2021]
109
110  * Enhanced 'openssl list' with many new options.
111  * Added migration guide to man7.
112  * Implemented support for fully "pluggable" TLSv1.3 groups.
113  * Added suport for Kernel TLS (KTLS).
114  * Changed the license to the Apache License v2.0.
115  * Moved all variations of the EVP ciphers CAST5, BF, IDEA, SEED, RC2,
116    RC4, RC5, and DES to the legacy provider.
117  * Moved the EVP digests MD2, MD4, MDC2, WHIRLPOOL and RIPEMD-160 to the legacy
118    provider.
119  * Added convenience functions for generating asymmetric key pairs.
120  * Deprecated the `OCSP_REQ_CTX` type and functions.
121  * Deprecated the `EC_KEY` and `EC_KEY_METHOD` types and functions.
122  * Deprecated the `RSA` and `RSA_METHOD` types and functions.
123  * Deprecated the `DSA` and `DSA_METHOD` types and functions.
124  * Deprecated the `DH` and `DH_METHOD` types and functions.
125  * Deprecated the `ERR_load_` functions.
126  * Remove the `RAND_DRBG` API.
127  * Deprecated the `ENGINE` API.
128  * Added `OSSL_LIB_CTX`, a libcrypto library context.
129  * Added various `_ex` functions to the OpenSSL API that support using
130    a non-default `OSSL_LIB_CTX`.
131  * Interactive mode is removed from the 'openssl' program.
132  * The X25519, X448, Ed25519, Ed448, SHAKE128 and SHAKE256 algorithms are
133    included in the FIPS provider.
134  * X509 certificates signed using SHA1 are no longer allowed at security
135    level 1 or higher. The default security level for TLS is 1, so
136    certificates signed using SHA1 are by default no longer trusted to
137    authenticate servers or clients.
138  * enable-crypto-mdebug and enable-crypto-mdebug-backtrace were mostly
139    disabled; the project uses address sanitize/leak-detect instead.
140  * Added a Certificate Management Protocol (CMP, RFC 4210) implementation
141    also covering CRMF (RFC 4211) and HTTP transfer (RFC 6712).
142    It is part of the crypto lib and adds a 'cmp' app with a demo configuration.
143    All widely used CMP features are supported for both clients and servers.
144  * Added a proper HTTP client supporting GET with optional redirection, POST,
145    arbitrary request and response content types, TLS, persistent connections,
146    connections via HTTP(s) proxies, connections and exchange via user-defined
147    BIOs (allowing implicit connections), and timeout checks.
148  * Added util/check-format.pl for checking adherence to the coding guidelines.
149  * Added OSSL_ENCODER, a generic encoder API.
150  * Added OSSL_DECODER, a generic decoder API.
151  * Added OSSL_PARAM_BLD, an easier to use API to OSSL_PARAM.
152  * Added error raising macros, ERR_raise() and ERR_raise_data().
153  * Deprecated ERR_put_error(), ERR_get_error_line(), ERR_get_error_line_data(),
154    ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and
155    ERR_func_error_string().
156  * Added OSSL_PROVIDER_available(), to check provider availibility.
157  * Added 'openssl mac' that uses the EVP_MAC API.
158  * Added 'openssl kdf' that uses the EVP_KDF API.
159  * Add OPENSSL_info() and 'openssl info' to get built-in data.
160  * Add support for enabling instrumentation through trace and debug
161    output.
162  * Changed our version number scheme and set the next major release to
163    3.0.0
164  * Added EVP_MAC, an EVP layer MAC API, and a generic EVP_PKEY to EVP_MAC
165    bridge.  Supported MACs are: BLAKE2, CMAC, GMAC, HMAC, KMAC, POLY1305
166    and SIPHASH.
167  * Removed the heartbeat message in DTLS feature.
168  * Added EVP_KDF, an EVP layer KDF and PRF API, and a generic EVP_PKEY to
169    EVP_KDF bridge.  Supported KDFs are: HKDF, KBKDF, KRB5 KDF, PBKDF2,
170    PKCS12 KDF, SCRYPT, SSH KDF, SSKDF, TLS1 PRF, X9.42 KDF and X9.63 KDF.
171  * All of the low-level MD2, MD4, MD5, MDC2, RIPEMD160, SHA1, SHA224,
172    SHA256, SHA384, SHA512 and Whirlpool digest functions have been
173    deprecated.
174  * All of the low-level AES, Blowfish, Camellia, CAST, DES, IDEA, RC2,
175    RC4, RC5 and SEED cipher functions have been deprecated.
176  * All of the low-level DH, DSA, ECDH, ECDSA and RSA public key functions
177    have been deprecated.
178  * SSL 3, TLS 1.0, TLS 1.1, and DTLS 1.0 only work at security level 0,
179    except when RSA key exchange without SHA1 is used.
180  * Added providers, a new pluggability concept that will replace the
181    ENGINE API and ENGINE implementations.
182
183OpenSSL 1.1.1
184-------------
185
186### Major changes between OpenSSL 1.1.1k and OpenSSL 1.1.1l [24 Aug 2021]
187
188  * Fixed an SM2 Decryption Buffer Overflow ([CVE-2021-3711])
189  * Fixed various read buffer overruns processing ASN.1 strings ([CVE-2021-3712])
190
191### Major changes between OpenSSL 1.1.1j and OpenSSL 1.1.1k [25 Mar 2021]
192
193  * Fixed a problem with verifying a certificate chain when using the
194    X509_V_FLAG_X509_STRICT flag ([CVE-2021-3450])
195  * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously
196    crafted renegotiation ClientHello message from a client ([CVE-2021-3449])
197
198### Major changes between OpenSSL 1.1.1i and OpenSSL 1.1.1j [16 Feb 2021]
199
200  * Fixed a NULL pointer deref in the X509_issuer_and_serial_hash()
201    function ([CVE-2021-23841])
202  * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING
203    padding mode to correctly check for rollback attacks
204  * Fixed an overflow in the EVP_CipherUpdate, EVP_EncryptUpdate and
205    EVP_DecryptUpdate functions ([CVE-2021-23840])
206  * Fixed SRP_Calc_client_key so that it runs in constant time
207
208### Major changes between OpenSSL 1.1.1h and OpenSSL 1.1.1i [8 Dec 2020]
209
210  * Fixed NULL pointer deref in GENERAL_NAME_cmp ([CVE-2020-1971])
211
212### Major changes between OpenSSL 1.1.1g and OpenSSL 1.1.1h [22 Sep 2020]
213
214  * Disallow explicit curve parameters in verifications chains when
215    X509_V_FLAG_X509_STRICT is used
216  * Enable 'MinProtocol' and 'MaxProtocol' to configure both TLS and DTLS
217    contexts
218  * Oracle Developer Studio will start reporting deprecation warnings
219
220### Major changes between OpenSSL 1.1.1f and OpenSSL 1.1.1g [21 Apr 2020]
221
222  * Fixed segmentation fault in SSL_check_chain() ([CVE-2020-1967])
223
224### Major changes between OpenSSL 1.1.1e and OpenSSL 1.1.1f [31 Mar 2020]
225
226  * Revert the unexpected EOF reporting via SSL_ERROR_SSL
227
228### Major changes between OpenSSL 1.1.1d and OpenSSL 1.1.1e [17 Mar 2020]
229
230  * Fixed an overflow bug in the x64_64 Montgomery squaring procedure
231    used in exponentiation with 512-bit moduli ([CVE-2019-1551])
232
233### Major changes between OpenSSL 1.1.1c and OpenSSL 1.1.1d [10 Sep 2019]
234
235  * Fixed a fork protection issue ([CVE-2019-1549])
236  * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
237    ([CVE-2019-1563])
238  * For built-in EC curves, ensure an EC_GROUP built from the curve name is
239    used even when parsing explicit parameters
240  * Compute ECC cofactors if not provided during EC_GROUP construction
241    ([CVE-2019-1547])
242  * Early start up entropy quality from the DEVRANDOM seed source has been
243    improved for older Linux systems
244  * Correct the extended master secret constant on EBCDIC systems
245  * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
246  * Changed DH_check to accept parameters with order q and 2q subgroups
247  * Significantly reduce secure memory usage by the randomness pools
248  * Revert the DEVRANDOM_WAIT feature for Linux systems
249
250### Major changes between OpenSSL 1.1.1b and OpenSSL 1.1.1c [28 May 2019]
251
252  * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
253
254### Major changes between OpenSSL 1.1.1a and OpenSSL 1.1.1b [26 Feb 2019]
255
256  * Change the info callback signals for the start and end of a post-handshake
257    message exchange in TLSv1.3.
258  * Fix a bug in DTLS over SCTP. This breaks interoperability with older
259    versions of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2.
260
261### Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018]
262
263  * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
264  * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
265
266### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.1 [11 Sep 2018]
267
268  * Support for TLSv1.3 added. The TLSv1.3 implementation includes:
269    * Fully compliant implementation of RFC8446 (TLSv1.3) on by default
270    * Early data (0-RTT)
271    * Post-handshake authentication and key update
272    * Middlebox Compatibility Mode
273    * TLSv1.3 PSKs
274    * Support for all five RFC8446 ciphersuites
275    * RSA-PSS signature algorithms (backported to TLSv1.2)
276    * Configurable session ticket support
277    * Stateless server support
278    * Rewrite of the packet construction code for "safer" packet handling
279    * Rewrite of the extension handling code
280    For further important information, see the [TLS1.3 page](
281    https://wiki.openssl.org/index.php/TLS1.3) in the OpenSSL Wiki.
282
283  * Complete rewrite of the OpenSSL random number generator to introduce the
284    following capabilities
285      * The default RAND method now utilizes an AES-CTR DRBG according to
286        NIST standard SP 800-90Ar1.
287      * Support for multiple DRBG instances with seed chaining.
288      * There is a public and private DRBG instance.
289      * The DRBG instances are fork-safe.
290      * Keep all global DRBG instances on the secure heap if it is enabled.
291      * The public and private DRBG instance are per thread for lock free
292      operation
293  * Support for various new cryptographic algorithms including:
294      * SHA3
295      * SHA512/224 and SHA512/256
296      * EdDSA (both Ed25519 and Ed448) including X509 and TLS support
297      * X448 (adding to the existing X25519 support in 1.1.0)
298      * Multi-prime RSA
299      * SM2
300      * SM3
301      * SM4
302      * SipHash
303      * ARIA (including TLS support)
304  * Significant Side-Channel attack security improvements
305  * Add a new ClientHello callback to provide the ability to adjust the SSL
306  object at an early stage.
307  * Add 'Maximum Fragment Length' TLS extension negotiation and support
308  * A new STORE module, which implements a uniform and URI based reader of
309   stores that can contain keys, certificates, CRLs and numerous other
310  objects.
311  * Move the display of configuration data to configdata.pm.
312  * Allow GNU style "make variables" to be used with Configure.
313  * Claim the namespaces OSSL and OPENSSL, represented as symbol prefixes
314  * Rewrite of devcrypto engine
315
316OpenSSL 1.1.0
317-------------
318
319### Major changes between OpenSSL 1.1.0k and OpenSSL 1.1.0l [10 Sep 2019]
320
321  * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
322    ([CVE-2019-1563])
323  * For built-in EC curves, ensure an EC_GROUP built from the curve name is
324    used even when parsing explicit parameters
325  * Compute ECC cofactors if not provided during EC_GROUP construction
326    ([CVE-2019-1547])
327  * Use Windows installation paths in the mingw builds ([CVE-2019-1552])
328
329### Major changes between OpenSSL 1.1.0j and OpenSSL 1.1.0k [28 May 2019]
330
331  * Prevent over long nonces in ChaCha20-Poly1305 ([CVE-2019-1543])
332
333### Major changes between OpenSSL 1.1.0i and OpenSSL 1.1.0j [20 Nov 2018]
334
335  * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
336  * Timing vulnerability in ECDSA signature generation ([CVE-2018-0735])
337
338### Major changes between OpenSSL 1.1.0h and OpenSSL 1.1.0i [14 Aug 2018]
339
340  * Client DoS due to large DH parameter ([CVE-2018-0732])
341  * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
342
343### Major changes between OpenSSL 1.1.0g and OpenSSL 1.1.0h [27 Mar 2018]
344
345  * Constructed ASN.1 types with a recursive definition could exceed the
346    stack ([CVE-2018-0739])
347  * Incorrect CRYPTO_memcmp on HP-UX PA-RISC ([CVE-2018-0733])
348  * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
349
350### Major changes between OpenSSL 1.1.0f and OpenSSL 1.1.0g [2 Nov 2017]
351
352  * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
353  * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
354
355### Major changes between OpenSSL 1.1.0e and OpenSSL 1.1.0f [25 May 2017]
356
357  * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
358
359### Major changes between OpenSSL 1.1.0d and OpenSSL 1.1.0e [16 Feb 2017]
360
361  * Encrypt-Then-Mac renegotiation crash ([CVE-2017-3733])
362
363### Major changes between OpenSSL 1.1.0c and OpenSSL 1.1.0d [26 Jan 2017]
364
365  * Truncated packet could crash via OOB read ([CVE-2017-3731])
366  * Bad (EC)DHE parameters cause a client crash ([CVE-2017-3730])
367  * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
368
369### Major changes between OpenSSL 1.1.0b and OpenSSL 1.1.0c [10 Nov 2016]
370
371  * ChaCha20/Poly1305 heap-buffer-overflow ([CVE-2016-7054])
372  * CMS Null dereference ([CVE-2016-7053])
373  * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
374
375### Major changes between OpenSSL 1.1.0a and OpenSSL 1.1.0b [26 Sep 2016]
376
377  * Fix Use After Free for large message sizes ([CVE-2016-6309])
378
379### Major changes between OpenSSL 1.1.0 and OpenSSL 1.1.0a [22 Sep 2016]
380
381  * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
382  * SSL_peek() hang on empty record ([CVE-2016-6305])
383  * Excessive allocation of memory in tls_get_message_header()
384    ([CVE-2016-6307])
385  * Excessive allocation of memory in dtls1_preprocess_fragment()
386    ([CVE-2016-6308])
387
388### Major changes between OpenSSL 1.0.2h and OpenSSL 1.1.0 [25 Aug 2016]
389
390  * Copyright text was shrunk to a boilerplate that points to the license
391  * "shared" builds are now the default when possible
392  * Added support for "pipelining"
393  * Added the AFALG engine
394  * New threading API implemented
395  * Support for ChaCha20 and Poly1305 added to libcrypto and libssl
396  * Support for extended master secret
397  * CCM ciphersuites
398  * Reworked test suite, now based on perl, Test::Harness and Test::More
399  * *Most* libcrypto and libssl public structures were made opaque,
400    including:
401    BIGNUM and associated types, EC_KEY and EC_KEY_METHOD,
402    DH and DH_METHOD, DSA and DSA_METHOD, RSA and RSA_METHOD,
403    BIO and BIO_METHOD, EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX,
404    EVP_CIPHER, EVP_PKEY and associated types, HMAC_CTX,
405    X509, X509_CRL, X509_OBJECT, X509_STORE_CTX, X509_STORE,
406    X509_LOOKUP, X509_LOOKUP_METHOD
407  * libssl internal structures made opaque
408  * SSLv2 support removed
409  * Kerberos ciphersuite support removed
410  * RC4 removed from DEFAULT ciphersuites in libssl
411  * 40 and 56 bit cipher support removed from libssl
412  * All public header files moved to include/openssl, no more symlinking
413  * SSL/TLS state machine, version negotiation and record layer rewritten
414  * EC revision: now operations use new EC_KEY_METHOD.
415  * Support for OCB mode added to libcrypto
416  * Support for asynchronous crypto operations added to libcrypto and libssl
417  * Deprecated interfaces can now be disabled at build time either
418    relative to the latest release via the "no-deprecated" Configure
419    argument, or via the "--api=1.1.0|1.0.0|0.9.8" option.
420  * Application software can be compiled with -DOPENSSL_API_COMPAT=version
421    to ensure that features deprecated in that version are not exposed.
422  * Support for RFC6698/RFC7671 DANE TLSA peer authentication
423  * Change of Configure to use --prefix as the main installation
424    directory location rather than --openssldir.  The latter becomes
425    the directory for certs, private key and openssl.cnf exclusively.
426  * Reworked BIO networking library, with full support for IPv6.
427  * New "unified" build system
428  * New security levels
429  * Support for scrypt algorithm
430  * Support for X25519
431  * Extended SSL_CONF support using configuration files
432  * KDF algorithm support. Implement TLS PRF as a KDF.
433  * Support for Certificate Transparency
434  * HKDF support.
435
436OpenSSL 1.0.2
437-------------
438
439### Major changes between OpenSSL 1.0.2s and OpenSSL 1.0.2t [10 Sep 2019]
440
441  * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
442    ([CVE-2019-1563])
443  * For built-in EC curves, ensure an EC_GROUP built from the curve name is
444    used even when parsing explicit parameters
445  * Compute ECC cofactors if not provided during EC_GROUP construction
446    ([CVE-2019-1547])
447  * Document issue with installation paths in diverse Windows builds
448    ([CVE-2019-1552])
449
450### Major changes between OpenSSL 1.0.2r and OpenSSL 1.0.2s [28 May 2019]
451
452  * None
453
454### Major changes between OpenSSL 1.0.2q and OpenSSL 1.0.2r [26 Feb 2019]
455
456  * 0-byte record padding oracle ([CVE-2019-1559])
457
458### Major changes between OpenSSL 1.0.2p and OpenSSL 1.0.2q [20 Nov 2018]
459
460  * Microarchitecture timing vulnerability in ECC scalar multiplication ([CVE-2018-5407])
461  * Timing vulnerability in DSA signature generation ([CVE-2018-0734])
462
463### Major changes between OpenSSL 1.0.2o and OpenSSL 1.0.2p [14 Aug 2018]
464
465  * Client DoS due to large DH parameter ([CVE-2018-0732])
466  * Cache timing vulnerability in RSA Key Generation ([CVE-2018-0737])
467
468### Major changes between OpenSSL 1.0.2n and OpenSSL 1.0.2o [27 Mar 2018]
469
470  * Constructed ASN.1 types with a recursive definition could exceed the
471    stack ([CVE-2018-0739])
472
473### Major changes between OpenSSL 1.0.2m and OpenSSL 1.0.2n [7 Dec 2017]
474
475  * Read/write after SSL object in error state ([CVE-2017-3737])
476  * rsaz_1024_mul_avx2 overflow bug on x86_64 ([CVE-2017-3738])
477
478### Major changes between OpenSSL 1.0.2l and OpenSSL 1.0.2m [2 Nov 2017]
479
480  * bn_sqrx8x_internal carry bug on x86_64 ([CVE-2017-3736])
481  * Malformed X.509 IPAddressFamily could cause OOB read ([CVE-2017-3735])
482
483### Major changes between OpenSSL 1.0.2k and OpenSSL 1.0.2l [25 May 2017]
484
485  * config now recognises 64-bit mingw and chooses mingw64 instead of mingw
486
487### Major changes between OpenSSL 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
488
489  * Truncated packet could crash via OOB read ([CVE-2017-3731])
490  * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2017-3732])
491  * Montgomery multiplication may produce incorrect results ([CVE-2016-7055])
492
493### Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
494
495  * Missing CRL sanity check ([CVE-2016-7052])
496
497### Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
498
499  * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
500  * SWEET32 Mitigation ([CVE-2016-2183])
501  * OOB write in MDC2_Update() ([CVE-2016-6303])
502  * Malformed SHA512 ticket DoS ([CVE-2016-6302])
503  * OOB write in BN_bn2dec() ([CVE-2016-2182])
504  * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
505  * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
506  * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
507  * DTLS buffered message DoS ([CVE-2016-2179])
508  * DTLS replay protection DoS ([CVE-2016-2181])
509  * Certificate message OOB reads ([CVE-2016-6306])
510
511### Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
512
513  * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
514  * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
515  * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
516  * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
517  * EBCDIC overread ([CVE-2016-2176])
518  * Modify behavior of ALPN to invoke callback after SNI/servername
519    callback, such that updates to the SSL_CTX affect ALPN.
520  * Remove LOW from the DEFAULT cipher list.  This removes singles DES from
521    the default.
522  * Only remove the SSLv2 methods with the no-ssl2-method option.
523
524### Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
525
526  * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
527  * Disable SSLv2 default build, default negotiation and weak ciphers
528    ([CVE-2016-0800])
529  * Fix a double-free in DSA code ([CVE-2016-0705])
530  * Disable SRP fake user seed to address a server memory leak
531    ([CVE-2016-0798])
532  * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
533    ([CVE-2016-0797])
534  * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
535  * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
536
537### Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
538
539  * DH small subgroups ([CVE-2016-0701])
540  * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
541
542### Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
543
544  * BN_mod_exp may produce incorrect results on x86_64 ([CVE-2015-3193])
545  * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
546  * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
547  * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
548  * In DSA_generate_parameters_ex, if the provided seed is too short,
549    return an error
550
551### Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
552
553  * Alternate chains certificate forgery ([CVE-2015-1793])
554  * Race condition handling PSK identify hint ([CVE-2015-3196])
555
556### Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
557
558  * Fix HMAC ABI incompatibility
559
560### Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
561
562  * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
563  * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
564  * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
565  * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
566  * Race condition handling NewSessionTicket ([CVE-2015-1791])
567
568### Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
569
570  * OpenSSL 1.0.2 ClientHello sigalgs DoS fix ([CVE-2015-0291])
571  * Multiblock corrupted pointer fix ([CVE-2015-0290])
572  * Segmentation fault in DTLSv1_listen fix ([CVE-2015-0207])
573  * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
574  * Segmentation fault for invalid PSS parameters fix ([CVE-2015-0208])
575  * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
576  * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
577  * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
578  * Empty CKE with client auth and DHE fix ([CVE-2015-1787])
579  * Handshake with unseeded PRNG fix ([CVE-2015-0285])
580  * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
581  * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
582  * Removed the export ciphers from the DEFAULT ciphers
583
584### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]
585
586  * Suite B support for TLS 1.2 and DTLS 1.2
587  * Support for DTLS 1.2
588  * TLS automatic EC curve selection.
589  * API to set TLS supported signature algorithms and curves
590  * SSL_CONF configuration API.
591  * TLS Brainpool support.
592  * ALPN support.
593  * CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
594
595OpenSSL 1.0.1
596-------------
597
598### Major changes between OpenSSL 1.0.1t and OpenSSL 1.0.1u [22 Sep 2016]
599
600  * OCSP Status Request extension unbounded memory growth ([CVE-2016-6304])
601  * SWEET32 Mitigation ([CVE-2016-2183])
602  * OOB write in MDC2_Update() ([CVE-2016-6303])
603  * Malformed SHA512 ticket DoS ([CVE-2016-6302])
604  * OOB write in BN_bn2dec() ([CVE-2016-2182])
605  * OOB read in TS_OBJ_print_bio() ([CVE-2016-2180])
606  * Pointer arithmetic undefined behaviour ([CVE-2016-2177])
607  * Constant time flag not preserved in DSA signing ([CVE-2016-2178])
608  * DTLS buffered message DoS ([CVE-2016-2179])
609  * DTLS replay protection DoS ([CVE-2016-2181])
610  * Certificate message OOB reads ([CVE-2016-6306])
611
612### Major changes between OpenSSL 1.0.1s and OpenSSL 1.0.1t [3 May 2016]
613
614  * Prevent padding oracle in AES-NI CBC MAC check ([CVE-2016-2107])
615  * Fix EVP_EncodeUpdate overflow ([CVE-2016-2105])
616  * Fix EVP_EncryptUpdate overflow ([CVE-2016-2106])
617  * Prevent ASN.1 BIO excessive memory allocation ([CVE-2016-2109])
618  * EBCDIC overread ([CVE-2016-2176])
619  * Modify behavior of ALPN to invoke callback after SNI/servername
620    callback, such that updates to the SSL_CTX affect ALPN.
621  * Remove LOW from the DEFAULT cipher list.  This removes singles DES from
622    the default.
623  * Only remove the SSLv2 methods with the no-ssl2-method option.
624
625### Major changes between OpenSSL 1.0.1r and OpenSSL 1.0.1s [1 Mar 2016]
626
627  * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
628  * Disable SSLv2 default build, default negotiation and weak ciphers
629    ([CVE-2016-0800])
630  * Fix a double-free in DSA code ([CVE-2016-0705])
631  * Disable SRP fake user seed to address a server memory leak
632    ([CVE-2016-0798])
633  * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
634    ([CVE-2016-0797])
635  * Fix memory issues in BIO_*printf functions ([CVE-2016-0799])
636  * Fix side channel attack on modular exponentiation ([CVE-2016-0702])
637
638### Major changes between OpenSSL 1.0.1q and OpenSSL 1.0.1r [28 Jan 2016]
639
640  * Protection for DH small subgroup attacks
641  * SSLv2 doesn't block disabled ciphers ([CVE-2015-3197])
642
643### Major changes between OpenSSL 1.0.1p and OpenSSL 1.0.1q [3 Dec 2015]
644
645  * Certificate verify crash with missing PSS parameter ([CVE-2015-3194])
646  * X509_ATTRIBUTE memory leak ([CVE-2015-3195])
647  * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
648  * In DSA_generate_parameters_ex, if the provided seed is too short,
649    return an error
650
651### Major changes between OpenSSL 1.0.1o and OpenSSL 1.0.1p [9 Jul 2015]
652
653  * Alternate chains certificate forgery ([CVE-2015-1793])
654  * Race condition handling PSK identify hint ([CVE-2015-3196])
655
656### Major changes between OpenSSL 1.0.1n and OpenSSL 1.0.1o [12 Jun 2015]
657
658  * Fix HMAC ABI incompatibility
659
660### Major changes between OpenSSL 1.0.1m and OpenSSL 1.0.1n [11 Jun 2015]
661
662  * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
663  * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
664  * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
665  * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
666  * Race condition handling NewSessionTicket ([CVE-2015-1791])
667
668### Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.1m [19 Mar 2015]
669
670  * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
671  * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
672  * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
673  * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
674  * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
675  * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
676  * Removed the export ciphers from the DEFAULT ciphers
677
678### Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
679
680  * Build fixes for the Windows and OpenVMS platforms
681
682### Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
683
684  * Fix for [CVE-2014-3571]
685  * Fix for [CVE-2015-0206]
686  * Fix for [CVE-2014-3569]
687  * Fix for [CVE-2014-3572]
688  * Fix for [CVE-2015-0204]
689  * Fix for [CVE-2015-0205]
690  * Fix for [CVE-2014-8275]
691  * Fix for [CVE-2014-3570]
692
693### Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
694
695  * Fix for [CVE-2014-3513]
696  * Fix for [CVE-2014-3567]
697  * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
698  * Fix for [CVE-2014-3568]
699
700### Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
701
702  * Fix for [CVE-2014-3512]
703  * Fix for [CVE-2014-3511]
704  * Fix for [CVE-2014-3510]
705  * Fix for [CVE-2014-3507]
706  * Fix for [CVE-2014-3506]
707  * Fix for [CVE-2014-3505]
708  * Fix for [CVE-2014-3509]
709  * Fix for [CVE-2014-5139]
710  * Fix for [CVE-2014-3508]
711
712### Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
713
714  * Fix for [CVE-2014-0224]
715  * Fix for [CVE-2014-0221]
716  * Fix for [CVE-2014-0198]
717  * Fix for [CVE-2014-0195]
718  * Fix for [CVE-2014-3470]
719  * Fix for [CVE-2010-5298]
720
721### Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
722
723  * Fix for [CVE-2014-0160]
724  * Add TLS padding extension workaround for broken servers.
725  * Fix for [CVE-2014-0076]
726
727### Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
728
729  * Don't include gmt_unix_time in TLS server and client random values
730  * Fix for TLS record tampering bug ([CVE-2013-4353])
731  * Fix for TLS version checking bug ([CVE-2013-6449])
732  * Fix for DTLS retransmission bug ([CVE-2013-6450])
733
734### Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]
735
736  * Corrected fix for ([CVE-2013-0169])
737
738### Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]
739
740  * Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
741  * Include the fips configuration module.
742  * Fix OCSP bad key DoS attack ([CVE-2013-0166])
743  * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
744  * Fix for TLS AESNI record handling flaw ([CVE-2012-2686])
745
746### Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]
747
748  * Fix TLS/DTLS record length checking bug ([CVE-2012-2333])
749  * Don't attempt to use non-FIPS composite ciphers in FIPS mode.
750
751### Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]
752
753  * Fix compilation error on non-x86 platforms.
754  * Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
755  * Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
756
757### Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]
758
759  * Fix for ASN1 overflow bug ([CVE-2012-2110])
760  * Workarounds for some servers that hang on long client hellos.
761  * Fix SEGV in AES code.
762
763### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]
764
765  * TLS/DTLS heartbeat support.
766  * SCTP support.
767  * RFC 5705 TLS key material exporter.
768  * RFC 5764 DTLS-SRTP negotiation.
769  * Next Protocol Negotiation.
770  * PSS signatures in certificates, requests and CRLs.
771  * Support for password based recipient info for CMS.
772  * Support TLS v1.2 and TLS v1.1.
773  * Preliminary FIPS capability for unvalidated 2.0 FIPS module.
774  * SRP support.
775
776OpenSSL 1.0.0
777-------------
778
779### Major changes between OpenSSL 1.0.0s and OpenSSL 1.0.0t [3 Dec 2015]
780
781  * X509_ATTRIBUTE memory leak (([CVE-2015-3195]))
782  * Race condition handling PSK identify hint ([CVE-2015-3196])
783
784### Major changes between OpenSSL 1.0.0r and OpenSSL 1.0.0s [11 Jun 2015]
785
786  * Malformed ECParameters causes infinite loop ([CVE-2015-1788])
787  * Exploitable out-of-bounds read in X509_cmp_time ([CVE-2015-1789])
788  * PKCS7 crash with missing EnvelopedContent ([CVE-2015-1790])
789  * CMS verify infinite loop with unknown hash function ([CVE-2015-1792])
790  * Race condition handling NewSessionTicket ([CVE-2015-1791])
791
792### Major changes between OpenSSL 1.0.0q and OpenSSL 1.0.0r [19 Mar 2015]
793
794  * Segmentation fault in ASN1_TYPE_cmp fix ([CVE-2015-0286])
795  * ASN.1 structure reuse memory corruption fix ([CVE-2015-0287])
796  * PKCS7 NULL pointer dereferences fix ([CVE-2015-0289])
797  * DoS via reachable assert in SSLv2 servers fix ([CVE-2015-0293])
798  * Use After Free following d2i_ECPrivatekey error fix ([CVE-2015-0209])
799  * X509_to_X509_REQ NULL pointer deref fix ([CVE-2015-0288])
800  * Removed the export ciphers from the DEFAULT ciphers
801
802### Major changes between OpenSSL 1.0.0p and OpenSSL 1.0.0q [15 Jan 2015]
803
804  * Build fixes for the Windows and OpenVMS platforms
805
806### Major changes between OpenSSL 1.0.0o and OpenSSL 1.0.0p [8 Jan 2015]
807
808  * Fix for [CVE-2014-3571]
809  * Fix for [CVE-2015-0206]
810  * Fix for [CVE-2014-3569]
811  * Fix for [CVE-2014-3572]
812  * Fix for [CVE-2015-0204]
813  * Fix for [CVE-2015-0205]
814  * Fix for [CVE-2014-8275]
815  * Fix for [CVE-2014-3570]
816
817### Major changes between OpenSSL 1.0.0n and OpenSSL 1.0.0o [15 Oct 2014]
818
819  * Fix for [CVE-2014-3513]
820  * Fix for [CVE-2014-3567]
821  * Mitigation for [CVE-2014-3566] (SSL protocol vulnerability)
822  * Fix for [CVE-2014-3568]
823
824### Major changes between OpenSSL 1.0.0m and OpenSSL 1.0.0n [6 Aug 2014]
825
826  * Fix for [CVE-2014-3510]
827  * Fix for [CVE-2014-3507]
828  * Fix for [CVE-2014-3506]
829  * Fix for [CVE-2014-3505]
830  * Fix for [CVE-2014-3509]
831  * Fix for [CVE-2014-3508]
832
833  Known issues in OpenSSL 1.0.0m:
834
835  * EAP-FAST and other applications using tls_session_secret_cb
836    won't resume sessions. Fixed in 1.0.0n-dev
837  * Compilation failure of s3_pkt.c on some platforms due to missing
838    `<limits.h>` include. Fixed in 1.0.0n-dev
839
840### Major changes between OpenSSL 1.0.0l and OpenSSL 1.0.0m [5 Jun 2014]
841
842  * Fix for [CVE-2014-0224]
843  * Fix for [CVE-2014-0221]
844  * Fix for [CVE-2014-0198]
845  * Fix for [CVE-2014-0195]
846  * Fix for [CVE-2014-3470]
847  * Fix for [CVE-2014-0076]
848  * Fix for [CVE-2010-5298]
849
850### Major changes between OpenSSL 1.0.0k and OpenSSL 1.0.0l [6 Jan 2014]
851
852  * Fix for DTLS retransmission bug ([CVE-2013-6450])
853
854### Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]
855
856  * Fix for SSL/TLS/DTLS CBC plaintext recovery attack ([CVE-2013-0169])
857  * Fix OCSP bad key DoS attack ([CVE-2013-0166])
858
859### Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]
860
861  * Fix DTLS record length checking bug ([CVE-2012-2333])
862
863### Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]
864
865  * Fix for ASN1 overflow bug ([CVE-2012-2110])
866
867### Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]
868
869  * Fix for CMS/PKCS#7 MMA ([CVE-2012-0884])
870  * Corrected fix for ([CVE-2011-4619])
871  * Various DTLS fixes.
872
873### Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]
874
875  * Fix for DTLS DoS issue ([CVE-2012-0050])
876
877### Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]
878
879  * Fix for DTLS plaintext recovery attack ([CVE-2011-4108])
880  * Clear block padding bytes of SSL 3.0 records ([CVE-2011-4576])
881  * Only allow one SGC handshake restart for SSL/TLS ([CVE-2011-4619])
882  * Check parameters are not NULL in GOST ENGINE ([CVE-2012-0027])
883  * Check for malformed RFC3779 data ([CVE-2011-4577])
884
885### Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]
886
887  * Fix for CRL vulnerability issue ([CVE-2011-3207])
888  * Fix for ECDH crashes ([CVE-2011-3210])
889  * Protection against EC timing attacks.
890  * Support ECDH ciphersuites for certificates using SHA2 algorithms.
891  * Various DTLS fixes.
892
893### Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]
894
895  * Fix for security issue ([CVE-2011-0014])
896
897### Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]
898
899  * Fix for security issue ([CVE-2010-4180])
900  * Fix for ([CVE-2010-4252])
901  * Fix mishandling of absent EC point format extension.
902  * Fix various platform compilation issues.
903  * Corrected fix for security issue ([CVE-2010-3864]).
904
905### Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]
906
907  * Fix for security issue ([CVE-2010-3864]).
908  * Fix for ([CVE-2010-2939])
909  * Fix WIN32 build system for GOST ENGINE.
910
911### Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]
912
913  * Fix for security issue ([CVE-2010-1633]).
914  * GOST MAC and CFB fixes.
915
916### Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]
917
918  * RFC3280 path validation: sufficient to process PKITS tests.
919  * Integrated support for PVK files and keyblobs.
920  * Change default private key format to PKCS#8.
921  * CMS support: able to process all examples in RFC4134
922  * Streaming ASN1 encode support for PKCS#7 and CMS.
923  * Multiple signer and signer add support for PKCS#7 and CMS.
924  * ASN1 printing support.
925  * Whirlpool hash algorithm added.
926  * RFC3161 time stamp support.
927  * New generalised public key API supporting ENGINE based algorithms.
928  * New generalised public key API utilities.
929  * New ENGINE supporting GOST algorithms.
930  * SSL/TLS GOST ciphersuite support.
931  * PKCS#7 and CMS GOST support.
932  * RFC4279 PSK ciphersuite support.
933  * Supported points format extension for ECC ciphersuites.
934  * ecdsa-with-SHA224/256/384/512 signature types.
935  * dsa-with-SHA224 and dsa-with-SHA256 signature types.
936  * Opaque PRF Input TLS extension support.
937  * Updated time routines to avoid OS limitations.
938
939OpenSSL 0.9.x
940-------------
941
942### Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]
943
944  * CFB cipher definition fixes.
945  * Fix security issues [CVE-2010-0740] and [CVE-2010-0433].
946
947### Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]
948
949  * Cipher definition fixes.
950  * Workaround for slow RAND_poll() on some WIN32 versions.
951  * Remove MD2 from algorithm tables.
952  * SPKAC handling fixes.
953  * Support for RFC5746 TLS renegotiation extension.
954  * Compression memory leak fixed.
955  * Compression session resumption fixed.
956  * Ticket and SNI coexistence fixes.
957  * Many fixes to DTLS handling.
958
959### Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]
960
961  * Temporary work around for [CVE-2009-3555]: disable renegotiation.
962
963### Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]
964
965  * Fix various build issues.
966  * Fix security issues [CVE-2009-0590], [CVE-2009-0591], [CVE-2009-0789]
967
968### Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]
969
970  * Fix security issue ([CVE-2008-5077])
971  * Merge FIPS 140-2 branch code.
972
973### Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]
974
975  * CryptoAPI ENGINE support.
976  * Various precautionary measures.
977  * Fix for bugs affecting certificate request creation.
978  * Support for local machine keyset attribute in PKCS#12 files.
979
980### Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]
981
982  * Backport of CMS functionality to 0.9.8.
983  * Fixes for bugs introduced with 0.9.8f.
984
985### Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]
986
987  * Add gcc 4.2 support.
988  * Add support for AES and SSE2 assembly language optimization
989    for VC++ build.
990  * Support for RFC4507bis and server name extensions if explicitly
991    selected at compile time.
992  * DTLS improvements.
993  * RFC4507bis support.
994  * TLS Extensions support.
995
996### Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]
997
998  * Various ciphersuite selection fixes.
999  * RFC3779 support.
1000
1001### Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]
1002
1003  * Introduce limits to prevent malicious key DoS  ([CVE-2006-2940])
1004  * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1005  * Changes to ciphersuite selection algorithm
1006
1007### Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]
1008
1009  * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1010  * New cipher Camellia
1011
1012### Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]
1013
1014  * Cipher string fixes.
1015  * Fixes for VC++ 2005.
1016  * Updated ECC cipher suite support.
1017  * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
1018  * Zlib compression usage fixes.
1019  * Built in dynamic engine compilation support on Win32.
1020  * Fixes auto dynamic engine loading in Win32.
1021
1022### Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]
1023
1024  * Fix potential SSL 2.0 rollback ([CVE-2005-2969])
1025  * Extended Windows CE support
1026
1027### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]
1028
1029  * Major work on the BIGNUM library for higher efficiency and to
1030    make operations more streamlined and less contradictory.  This
1031    is the result of a major audit of the BIGNUM library.
1032  * Addition of BIGNUM functions for fields GF(2^m) and NIST
1033    curves, to support the Elliptic Crypto functions.
1034  * Major work on Elliptic Crypto; ECDH and ECDSA added, including
1035    the use through EVP, X509 and ENGINE.
1036  * New ASN.1 mini-compiler that's usable through the OpenSSL
1037    configuration file.
1038  * Added support for ASN.1 indefinite length constructed encoding.
1039  * New PKCS#12 'medium level' API to manipulate PKCS#12 files.
1040  * Complete rework of shared library construction and linking
1041    programs with shared or static libraries, through a separate
1042    Makefile.shared.
1043  * Rework of the passing of parameters from one Makefile to another.
1044  * Changed ENGINE framework to load dynamic engine modules
1045    automatically from specifically given directories.
1046  * New structure and ASN.1 functions for CertificatePair.
1047  * Changed the ZLIB compression method to be stateful.
1048  * Changed the key-generation and primality testing "progress"
1049    mechanism to take a structure that contains the ticker
1050    function and an argument.
1051  * New engine module: GMP (performs private key exponentiation).
1052  * New engine module: VIA PadLOck ACE extension in VIA C3
1053    Nehemiah processors.
1054  * Added support for IPv6 addresses in certificate extensions.
1055    See RFC 1884, section 2.2.
1056  * Added support for certificate policy mappings, policy
1057    constraints and name constraints.
1058  * Added support for multi-valued AVAs in the OpenSSL
1059    configuration file.
1060  * Added support for multiple certificates with the same subject
1061    in the 'openssl ca' index file.
1062  * Make it possible to create self-signed certificates using
1063    'openssl ca -selfsign'.
1064  * Make it possible to generate a serial number file with
1065    'openssl ca -create_serial'.
1066  * New binary search functions with extended functionality.
1067  * New BUF functions.
1068  * New STORE structure and library to provide an interface to all
1069    sorts of data repositories.  Supports storage of public and
1070    private keys, certificates, CRLs, numbers and arbitrary blobs.
1071    This library is unfortunately unfinished and unused within
1072    OpenSSL.
1073  * New control functions for the error stack.
1074  * Changed the PKCS#7 library to support one-pass S/MIME
1075    processing.
1076  * Added the possibility to compile without old deprecated
1077    functionality with the OPENSSL_NO_DEPRECATED macro or the
1078    'no-deprecated' argument to the config and Configure scripts.
1079  * Constification of all ASN.1 conversion functions, and other
1080    affected functions.
1081  * Improved platform support for PowerPC.
1082  * New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
1083  * New X509_VERIFY_PARAM structure to support parameterisation
1084  of X.509 path validation.
1085  * Major overhaul of RC4 performance on Intel P4, IA-64 and
1086    AMD64.
1087  * Changed the Configure script to have some algorithms disabled
1088    by default.  Those can be explicitly enabled with the new
1089    argument form 'enable-xxx'.
1090  * Change the default digest in 'openssl' commands from MD5 to
1091    SHA-1.
1092  * Added support for DTLS.
1093  * New BIGNUM blinding.
1094  * Added support for the RSA-PSS encryption scheme
1095  * Added support for the RSA X.931 padding.
1096  * Added support for BSD sockets on NetWare.
1097  * Added support for files larger than 2GB.
1098  * Added initial support for Win64.
1099  * Added alternate pkg-config files.
1100
1101### Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]
1102
1103  * FIPS 1.1.1 module linking.
1104  * Various ciphersuite selection fixes.
1105
1106### Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]
1107
1108  * Introduce limits to prevent malicious key DoS  ([CVE-2006-2940])
1109  * Fix security issues [CVE-2006-2937], [CVE-2006-3737], [CVE-2006-4343]
1110
1111### Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]
1112
1113  * Fix Daniel Bleichenbacher forged signature attack, [CVE-2006-4339]
1114
1115### Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]
1116
1117  * Visual C++ 2005 fixes.
1118  * Update Windows build system for FIPS.
1119
1120### Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]
1121
1122  * Give EVP_MAX_MD_SIZE its old value, except for a FIPS build.
1123
1124### Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]
1125
1126  * Fix SSL 2.0 Rollback ([CVE-2005-2969])
1127  * Allow use of fixed-length exponent on DSA signing
1128  * Default fixed-window RSA, DSA, DH private-key operations
1129
1130### Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]
1131
1132  * More compilation issues fixed.
1133  * Adaptation to more modern Kerberos API.
1134  * Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
1135  * Enhanced x86_64 assembler BIGNUM module.
1136  * More constification.
1137  * Added processing of proxy certificates (RFC 3820).
1138
1139### Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]
1140
1141  * Several compilation issues fixed.
1142  * Many memory allocation failure checks added.
1143  * Improved comparison of X509 Name type.
1144  * Mandatory basic checks on certificates.
1145  * Performance improvements.
1146
1147### Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]
1148
1149  * Fix race condition in CRL checking code.
1150  * Fixes to PKCS#7 (S/MIME) code.
1151
1152### Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]
1153
1154  * Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
1155  * Security: Fix null-pointer assignment in do_change_cipher_spec()
1156  * Allow multiple active certificates with same subject in CA index
1157  * Multiple X509 verification fixes
1158  * Speed up HMAC and other operations
1159
1160### Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]
1161
1162  * Security: fix various ASN1 parsing bugs.
1163  * New -ignore_err option to OCSP utility.
1164  * Various interop and bug fixes in S/MIME code.
1165  * SSL/TLS protocol fix for unrequested client certificates.
1166
1167### Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]
1168
1169  * Security: counter the Klima-Pokorny-Rosa extension of
1170    Bleichbacher's attack
1171  * Security: make RSA blinding default.
1172  * Configuration: Irix fixes, AIX fixes, better mingw support.
1173  * Support for new platforms: linux-ia64-ecc.
1174  * Build: shared library support fixes.
1175  * ASN.1: treat domainComponent correctly.
1176  * Documentation: fixes and additions.
1177
1178### Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]
1179
1180  * Security: Important security related bugfixes.
1181  * Enhanced compatibility with MIT Kerberos.
1182  * Can be built without the ENGINE framework.
1183  * IA32 assembler enhancements.
1184  * Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
1185  * Configuration: the no-err option now works properly.
1186  * SSL/TLS: now handles manual certificate chain building.
1187  * SSL/TLS: certain session ID malfunctions corrected.
1188
1189### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]
1190
1191  * New library section OCSP.
1192  * Complete rewrite of ASN1 code.
1193  * CRL checking in verify code and openssl utility.
1194  * Extension copying in 'ca' utility.
1195  * Flexible display options in 'ca' utility.
1196  * Provisional support for international characters with UTF8.
1197  * Support for external crypto devices ('engine') is no longer
1198    a separate distribution.
1199  * New elliptic curve library section.
1200  * New AES (Rijndael) library section.
1201  * Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
1202    Linux x86_64, Linux 64-bit on Sparc v9
1203  * Extended support for some platforms: VxWorks
1204  * Enhanced support for shared libraries.
1205  * Now only builds PIC code when shared library support is requested.
1206  * Support for pkg-config.
1207  * Lots of new manuals.
1208  * Makes symbolic links to or copies of manuals to cover all described
1209    functions.
1210  * Change DES API to clean up the namespace (some applications link also
1211    against libdes providing similar functions having the same name).
1212    Provide macros for backward compatibility (will be removed in the
1213    future).
1214  * Unify handling of cryptographic algorithms (software and engine)
1215    to be available via EVP routines for asymmetric and symmetric ciphers.
1216  * NCONF: new configuration handling routines.
1217  * Change API to use more 'const' modifiers to improve error checking
1218    and help optimizers.
1219  * Finally remove references to RSAref.
1220  * Reworked parts of the BIGNUM code.
1221  * Support for new engines: Broadcom ubsec, Accelerated Encryption
1222    Processing, IBM 4758.
1223  * A few new engines added in the demos area.
1224  * Extended and corrected OID (object identifier) table.
1225  * PRNG: query at more locations for a random device, automatic query for
1226    EGD style random sources at several locations.
1227  * SSL/TLS: allow optional cipher choice according to server's preference.
1228  * SSL/TLS: allow server to explicitly set new session ids.
1229  * SSL/TLS: support Kerberos cipher suites (RFC2712).
1230    Only supports MIT Kerberos for now.
1231  * SSL/TLS: allow more precise control of renegotiations and sessions.
1232  * SSL/TLS: add callback to retrieve SSL/TLS messages.
1233  * SSL/TLS: support AES cipher suites (RFC3268).
1234
1235### Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]
1236
1237  * Security: fix various ASN1 parsing bugs.
1238  * SSL/TLS protocol fix for unrequested client certificates.
1239
1240### Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]
1241
1242  * Security: counter the Klima-Pokorny-Rosa extension of
1243    Bleichbacher's attack
1244  * Security: make RSA blinding default.
1245  * Build: shared library support fixes.
1246
1247### Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]
1248
1249  * Important security related bugfixes.
1250
1251### Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]
1252
1253  * New configuration targets for Tandem OSS and A/UX.
1254  * New OIDs for Microsoft attributes.
1255  * Better handling of SSL session caching.
1256  * Better comparison of distinguished names.
1257  * Better handling of shared libraries in a mixed GNU/non-GNU environment.
1258  * Support assembler code with Borland C.
1259  * Fixes for length problems.
1260  * Fixes for uninitialised variables.
1261  * Fixes for memory leaks, some unusual crashes and some race conditions.
1262  * Fixes for smaller building problems.
1263  * Updates of manuals, FAQ and other instructive documents.
1264
1265### Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]
1266
1267  * Important building fixes on Unix.
1268
1269### Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]
1270
1271  * Various important bugfixes.
1272
1273### Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]
1274
1275  * Important security related bugfixes.
1276  * Various SSL/TLS library bugfixes.
1277
1278### Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]
1279
1280  * Various SSL/TLS library bugfixes.
1281  * Fix DH parameter generation for 'non-standard' generators.
1282
1283### Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]
1284
1285  * Various SSL/TLS library bugfixes.
1286  * BIGNUM library fixes.
1287  * RSA OAEP and random number generation fixes.
1288  * Object identifiers corrected and added.
1289  * Add assembler BN routines for IA64.
1290  * Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
1291    MIPS Linux; shared library support for Irix, HP-UX.
1292  * Add crypto accelerator support for AEP, Baltimore SureWare,
1293    Broadcom and Cryptographic Appliance's keyserver
1294    [in 0.9.6c-engine release].
1295
1296### Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]
1297
1298  * Security fix: PRNG improvements.
1299  * Security fix: RSA OAEP check.
1300  * Security fix: Reinsert and fix countermeasure to Bleichbacher's
1301    attack.
1302  * MIPS bug fix in BIGNUM.
1303  * Bug fix in "openssl enc".
1304  * Bug fix in X.509 printing routine.
1305  * Bug fix in DSA verification routine and DSA S/MIME verification.
1306  * Bug fix to make PRNG thread-safe.
1307  * Bug fix in RAND_file_name().
1308  * Bug fix in compatibility mode trust settings.
1309  * Bug fix in blowfish EVP.
1310  * Increase default size for BIO buffering filter.
1311  * Compatibility fixes in some scripts.
1312
1313### Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]
1314
1315  * Security fix: change behavior of OpenSSL to avoid using
1316    environment variables when running as root.
1317  * Security fix: check the result of RSA-CRT to reduce the
1318    possibility of deducing the private key from an incorrectly
1319    calculated signature.
1320  * Security fix: prevent Bleichenbacher's DSA attack.
1321  * Security fix: Zero the premaster secret after deriving the
1322    master secret in DH ciphersuites.
1323  * Reimplement SSL_peek(), which had various problems.
1324  * Compatibility fix: the function des_encrypt() renamed to
1325    des_encrypt1() to avoid clashes with some Unixen libc.
1326  * Bug fixes for Win32, HP/UX and Irix.
1327  * Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
1328    memory checking routines.
1329  * Bug fixes for RSA operations in threaded environments.
1330  * Bug fixes in misc. openssl applications.
1331  * Remove a few potential memory leaks.
1332  * Add tighter checks of BIGNUM routines.
1333  * Shared library support has been reworked for generality.
1334  * More documentation.
1335  * New function BN_rand_range().
1336  * Add "-rand" option to openssl s_client and s_server.
1337
1338### Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]
1339
1340  * Some documentation for BIO and SSL libraries.
1341  * Enhanced chain verification using key identifiers.
1342  * New sign and verify options to 'dgst' application.
1343  * Support for DER and PEM encoded messages in 'smime' application.
1344  * New 'rsautl' application, low-level RSA utility.
1345  * MD4 now included.
1346  * Bugfix for SSL rollback padding check.
1347  * Support for external crypto devices [1].
1348  * Enhanced EVP interface.
1349
1350  [1] The support for external crypto devices is currently a separate
1351      distribution.  See the file README-Engine.md.
1352
1353### Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]
1354
1355  * Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
1356  * Shared library support for HPUX and Solaris-gcc
1357  * Support of Linux/IA64
1358  * Assembler support for Mingw32
1359  * New 'rand' application
1360  * New way to check for existence of algorithms from scripts
1361
1362### Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]
1363
1364  * S/MIME support in new 'smime' command
1365  * Documentation for the OpenSSL command line application
1366  * Automation of 'req' application
1367  * Fixes to make s_client, s_server work under Windows
1368  * Support for multiple fieldnames in SPKACs
1369  * New SPKAC command line utility and associated library functions
1370  * Options to allow passwords to be obtained from various sources
1371  * New public key PEM format and options to handle it
1372  * Many other fixes and enhancements to command line utilities
1373  * Usable certificate chain verification
1374  * Certificate purpose checking
1375  * Certificate trust settings
1376  * Support of authority information access extension
1377  * Extensions in certificate requests
1378  * Simplified X509 name and attribute routines
1379  * Initial (incomplete) support for international character sets
1380  * New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
1381  * Read only memory BIOs and simplified creation function
1382  * TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
1383    record; allow fragmentation and interleaving of handshake and other
1384    data
1385  * TLS/SSL code now "tolerates" MS SGC
1386  * Work around for Netscape client certificate hang bug
1387  * RSA_NULL option that removes RSA patent code but keeps other
1388    RSA functionality
1389  * Memory leak detection now allows applications to add extra information
1390    via a per-thread stack
1391  * PRNG robustness improved
1392  * EGD support
1393  * BIGNUM library bug fixes
1394  * Faster DSA parameter generation
1395  * Enhanced support for Alpha Linux
1396  * Experimental macOS support
1397
1398### Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]
1399
1400  * Transparent support for PKCS#8 format private keys: these are used
1401    by several software packages and are more secure than the standard
1402    form
1403  * PKCS#5 v2.0 implementation
1404  * Password callbacks have a new void * argument for application data
1405  * Avoid various memory leaks
1406  * New pipe-like BIO that allows using the SSL library when actual I/O
1407    must be handled by the application (BIO pair)
1408
1409### Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]
1410
1411  * Lots of enhancements and cleanups to the Configuration mechanism
1412  * RSA OEAP related fixes
1413  * Added "openssl ca -revoke" option for revoking a certificate
1414  * Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
1415  * Source tree cleanups: removed lots of obsolete files
1416  * Thawte SXNet, certificate policies and CRL distribution points
1417    extension support
1418  * Preliminary (experimental) S/MIME support
1419  * Support for ASN.1 UTF8String and VisibleString
1420  * Full integration of PKCS#12 code
1421  * Sparc assembler bignum implementation, optimized hash functions
1422  * Option to disable selected ciphers
1423
1424### Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]
1425
1426  * Fixed a security hole related to session resumption
1427  * Fixed RSA encryption routines for the p < q case
1428  * "ALL" in cipher lists now means "everything except NULL ciphers"
1429  * Support for Triple-DES CBCM cipher
1430  * Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
1431  * First support for new TLSv1 ciphers
1432  * Added a few new BIOs (syslog BIO, reliable BIO)
1433  * Extended support for DSA certificate/keys.
1434  * Extended support for Certificate Signing Requests (CSR)
1435  * Initial support for X.509v3 extensions
1436  * Extended support for compression inside the SSL record layer
1437  * Overhauled Win32 builds
1438  * Cleanups and fixes to the Big Number (BN) library
1439  * Support for ASN.1 GeneralizedTime
1440  * Splitted ASN.1 SETs from SEQUENCEs
1441  * ASN1 and PEM support for Netscape Certificate Sequences
1442  * Overhauled Perl interface
1443  * Lots of source tree cleanups.
1444  * Lots of memory leak fixes.
1445  * Lots of bug fixes.
1446
1447### Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]
1448
1449  * Integration of the popular NO_RSA/NO_DSA patches
1450  * Initial support for compression inside the SSL record layer
1451  * Added BIO proxy and filtering functionality
1452  * Extended Big Number (BN) library
1453  * Added RIPE MD160 message digest
1454  * Added support for RC2/64bit cipher
1455  * Extended ASN.1 parser routines
1456  * Adjustments of the source tree for CVS
1457  * Support for various new platforms
1458
1459<!-- Links -->
1460
1461[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363
1462[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807
1463[CVE-2023-3817]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3817
1464[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446
1465[CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975
1466[CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650
1467[CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255
1468[CVE-2023-0466]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0466
1469[CVE-2023-0465]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0465
1470[CVE-2023-0464]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0464
1471[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401
1472[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286
1473[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217
1474[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216
1475[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215
1476[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450
1477[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304
1478[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203
1479[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996
1480[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274
1481[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2097
1482[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971
1483[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967
1484[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563
1485[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559
1486[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552
1487[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551
1488[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549
1489[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547
1490[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543
1491[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407
1492[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739
1493[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737
1494[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735
1495[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734
1496[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733
1497[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732
1498[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738
1499[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737
1500[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736
1501[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735
1502[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733
1503[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732
1504[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731
1505[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730
1506[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055
1507[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054
1508[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053
1509[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052
1510[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309
1511[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308
1512[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307
1513[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306
1514[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305
1515[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304
1516[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303
1517[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302
1518[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183
1519[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182
1520[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181
1521[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180
1522[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179
1523[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178
1524[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177
1525[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176
1526[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109
1527[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107
1528[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106
1529[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105
1530[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800
1531[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799
1532[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798
1533[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797
1534[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705
1535[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702
1536[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701
1537[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197
1538[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196
1539[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195
1540[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194
1541[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193
1542[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793
1543[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792
1544[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791
1545[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790
1546[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789
1547[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788
1548[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787
1549[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293
1550[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291
1551[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290
1552[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289
1553[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288
1554[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287
1555[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286
1556[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285
1557[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209
1558[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208
1559[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207
1560[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206
1561[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205
1562[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204
1563[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275
1564[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139
1565[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572
1566[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571
1567[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570
1568[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569
1569[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568
1570[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567
1571[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566
1572[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513
1573[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512
1574[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511
1575[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510
1576[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509
1577[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508
1578[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507
1579[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506
1580[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505
1581[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470
1582[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224
1583[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221
1584[CVE-2014-0198]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0198
1585[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195
1586[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160
1587[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076
1588[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450
1589[CVE-2013-6449]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6449
1590[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353
1591[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169
1592[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166
1593[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686
1594[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333
1595[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110
1596[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884
1597[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050
1598[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027
1599[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619
1600[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577
1601[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576
1602[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108
1603[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210
1604[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207
1605[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014
1606[CVE-2010-5298]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-5298
1607[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252
1608[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180
1609[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864
1610[CVE-2010-2939]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-2939
1611[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633
1612[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740
1613[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433
1614[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555
1615[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789
1616[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591
1617[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590
1618[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077
1619[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343
1620[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339
1621[CVE-2006-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3737
1622[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940
1623[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937
1624[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969
1625