NEWS revision 326663
1
2  NEWS
3  ====
4
5  This file gives a brief overview of the major changes between each OpenSSL
6  release. For more details please read the CHANGES file.
7
8  Major changes between OpenSSL 1.0.2m and OpenSSL 1.0.2n [7 Dec 2017]
9
10      o Read/write after SSL object in error state (CVE-2017-3737)
11      o rsaz_1024_mul_avx2 overflow bug on x86_64 (CVE-2017-3738)
12
13  Major changes between OpenSSL 1.0.2l and OpenSSL 1.0.2m [2 Nov 2017]
14
15      o bn_sqrx8x_internal carry bug on x86_64 (CVE-2017-3736)
16      o Malformed X.509 IPAddressFamily could cause OOB read (CVE-2017-3735)
17
18  Major changes between OpenSSL 1.0.2k and OpenSSL 1.0.2l [25 May 2017]
19
20      o config now recognises 64-bit mingw and chooses mingw64 instead of mingw
21
22  Major changes between OpenSSL 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
23
24      o Truncated packet could crash via OOB read (CVE-2017-3731)
25      o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
26      o Montgomery multiplication may produce incorrect results (CVE-2016-7055)
27
28  Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
29
30      o Missing CRL sanity check (CVE-2016-7052)
31
32  Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
33
34      o OCSP Status Request extension unbounded memory growth (CVE-2016-6304)
35      o SWEET32 Mitigation (CVE-2016-2183)
36      o OOB write in MDC2_Update() (CVE-2016-6303)
37      o Malformed SHA512 ticket DoS (CVE-2016-6302)
38      o OOB write in BN_bn2dec() (CVE-2016-2182)
39      o OOB read in TS_OBJ_print_bio() (CVE-2016-2180)
40      o Pointer arithmetic undefined behaviour (CVE-2016-2177)
41      o Constant time flag not preserved in DSA signing (CVE-2016-2178)
42      o DTLS buffered message DoS (CVE-2016-2179)
43      o DTLS replay protection DoS (CVE-2016-2181)
44      o Certificate message OOB reads (CVE-2016-6306)
45
46  Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
47
48      o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
49      o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
50      o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
51      o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
52      o EBCDIC overread (CVE-2016-2176)
53      o Modify behavior of ALPN to invoke callback after SNI/servername
54        callback, such that updates to the SSL_CTX affect ALPN.
55      o Remove LOW from the DEFAULT cipher list.  This removes singles DES from
56        the default.
57      o Only remove the SSLv2 methods with the no-ssl2-method option.
58
59  Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
60
61      o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
62      o Disable SSLv2 default build, default negotiation and weak ciphers
63        (CVE-2016-0800)
64      o Fix a double-free in DSA code (CVE-2016-0705)
65      o Disable SRP fake user seed to address a server memory leak
66        (CVE-2016-0798)
67      o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
68        (CVE-2016-0797)
69      o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
70      o Fix side channel attack on modular exponentiation (CVE-2016-0702)
71
72  Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
73
74      o DH small subgroups (CVE-2016-0701)
75      o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
76
77  Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
78
79      o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
80      o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
81      o X509_ATTRIBUTE memory leak (CVE-2015-3195)
82      o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
83      o In DSA_generate_parameters_ex, if the provided seed is too short,
84        return an error
85
86  Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
87
88      o Alternate chains certificate forgery (CVE-2015-1793)
89      o Race condition handling PSK identify hint (CVE-2015-3196)
90
91  Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
92
93      o Fix HMAC ABI incompatibility
94
95  Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
96
97      o Malformed ECParameters causes infinite loop (CVE-2015-1788)
98      o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
99      o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
100      o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
101      o Race condition handling NewSessionTicket (CVE-2015-1791)
102
103  Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
104
105      o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
106      o Multiblock corrupted pointer fix (CVE-2015-0290)
107      o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
108      o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
109      o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
110      o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
111      o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
112      o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
113      o Empty CKE with client auth and DHE fix (CVE-2015-1787)
114      o Handshake with unseeded PRNG fix (CVE-2015-0285)
115      o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
116      o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
117      o Removed the export ciphers from the DEFAULT ciphers
118
119  Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
120
121      o Suite B support for TLS 1.2 and DTLS 1.2
122      o Support for DTLS 1.2
123      o TLS automatic EC curve selection.
124      o API to set TLS supported signature algorithms and curves
125      o SSL_CONF configuration API.
126      o TLS Brainpool support.
127      o ALPN support.
128      o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
129
130  Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
131
132      o Build fixes for the Windows and OpenVMS platforms
133
134  Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
135
136      o Fix for CVE-2014-3571
137      o Fix for CVE-2015-0206
138      o Fix for CVE-2014-3569
139      o Fix for CVE-2014-3572
140      o Fix for CVE-2015-0204
141      o Fix for CVE-2015-0205
142      o Fix for CVE-2014-8275
143      o Fix for CVE-2014-3570
144
145  Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
146
147      o Fix for CVE-2014-3513
148      o Fix for CVE-2014-3567
149      o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
150      o Fix for CVE-2014-3568
151
152  Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
153
154      o Fix for CVE-2014-3512
155      o Fix for CVE-2014-3511
156      o Fix for CVE-2014-3510
157      o Fix for CVE-2014-3507
158      o Fix for CVE-2014-3506
159      o Fix for CVE-2014-3505
160      o Fix for CVE-2014-3509
161      o Fix for CVE-2014-5139
162      o Fix for CVE-2014-3508
163
164  Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
165
166      o Fix for CVE-2014-0224
167      o Fix for CVE-2014-0221
168      o Fix for CVE-2014-0198
169      o Fix for CVE-2014-0195
170      o Fix for CVE-2014-3470
171      o Fix for CVE-2010-5298
172
173  Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
174
175      o Fix for CVE-2014-0160
176      o Add TLS padding extension workaround for broken servers.
177      o Fix for CVE-2014-0076
178
179  Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
180
181      o Don't include gmt_unix_time in TLS server and client random values
182      o Fix for TLS record tampering bug CVE-2013-4353
183      o Fix for TLS version checking bug CVE-2013-6449
184      o Fix for DTLS retransmission bug CVE-2013-6450
185
186  Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
187
188      o Corrected fix for CVE-2013-0169
189
190  Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
191
192      o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
193      o Include the fips configuration module.
194      o Fix OCSP bad key DoS attack CVE-2013-0166
195      o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
196      o Fix for TLS AESNI record handling flaw CVE-2012-2686
197
198  Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
199
200      o Fix TLS/DTLS record length checking bug CVE-2012-2333
201      o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
202
203  Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
204
205      o Fix compilation error on non-x86 platforms.
206      o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
207      o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
208
209  Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
210
211      o Fix for ASN1 overflow bug CVE-2012-2110
212      o Workarounds for some servers that hang on long client hellos.
213      o Fix SEGV in AES code.
214
215  Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
216
217      o TLS/DTLS heartbeat support.
218      o SCTP support.
219      o RFC 5705 TLS key material exporter.
220      o RFC 5764 DTLS-SRTP negotiation.
221      o Next Protocol Negotiation.
222      o PSS signatures in certificates, requests and CRLs.
223      o Support for password based recipient info for CMS.
224      o Support TLS v1.2 and TLS v1.1.
225      o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
226      o SRP support.
227
228  Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
229
230      o Fix for CMS/PKCS#7 MMA CVE-2012-0884
231      o Corrected fix for CVE-2011-4619
232      o Various DTLS fixes.
233
234  Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
235
236      o Fix for DTLS DoS issue CVE-2012-0050
237
238  Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
239
240      o Fix for DTLS plaintext recovery attack CVE-2011-4108
241      o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
242      o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
243      o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
244      o Check for malformed RFC3779 data CVE-2011-4577
245
246  Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
247
248      o Fix for CRL vulnerability issue CVE-2011-3207
249      o Fix for ECDH crashes CVE-2011-3210
250      o Protection against EC timing attacks.
251      o Support ECDH ciphersuites for certificates using SHA2 algorithms.
252      o Various DTLS fixes.
253
254  Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
255
256      o Fix for security issue CVE-2011-0014
257
258  Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
259
260      o Fix for security issue CVE-2010-4180
261      o Fix for CVE-2010-4252
262      o Fix mishandling of absent EC point format extension.
263      o Fix various platform compilation issues.
264      o Corrected fix for security issue CVE-2010-3864.
265
266  Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
267
268      o Fix for security issue CVE-2010-3864.
269      o Fix for CVE-2010-2939
270      o Fix WIN32 build system for GOST ENGINE.
271
272  Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
273
274      o Fix for security issue CVE-2010-1633.
275      o GOST MAC and CFB fixes.
276
277  Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
278
279      o RFC3280 path validation: sufficient to process PKITS tests.
280      o Integrated support for PVK files and keyblobs.
281      o Change default private key format to PKCS#8.
282      o CMS support: able to process all examples in RFC4134
283      o Streaming ASN1 encode support for PKCS#7 and CMS.
284      o Multiple signer and signer add support for PKCS#7 and CMS.
285      o ASN1 printing support.
286      o Whirlpool hash algorithm added.
287      o RFC3161 time stamp support.
288      o New generalised public key API supporting ENGINE based algorithms.
289      o New generalised public key API utilities.
290      o New ENGINE supporting GOST algorithms.
291      o SSL/TLS GOST ciphersuite support.
292      o PKCS#7 and CMS GOST support.
293      o RFC4279 PSK ciphersuite support.
294      o Supported points format extension for ECC ciphersuites.
295      o ecdsa-with-SHA224/256/384/512 signature types.
296      o dsa-with-SHA224 and dsa-with-SHA256 signature types.
297      o Opaque PRF Input TLS extension support.
298      o Updated time routines to avoid OS limitations.
299
300  Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
301
302      o CFB cipher definition fixes.
303      o Fix security issues CVE-2010-0740 and CVE-2010-0433.
304
305  Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
306
307      o Cipher definition fixes.
308      o Workaround for slow RAND_poll() on some WIN32 versions.
309      o Remove MD2 from algorithm tables.
310      o SPKAC handling fixes.
311      o Support for RFC5746 TLS renegotiation extension.
312      o Compression memory leak fixed.
313      o Compression session resumption fixed.
314      o Ticket and SNI coexistence fixes.
315      o Many fixes to DTLS handling. 
316
317  Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
318
319      o Temporary work around for CVE-2009-3555: disable renegotiation.
320
321  Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
322
323      o Fix various build issues.
324      o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
325
326  Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
327
328      o Fix security issue (CVE-2008-5077)
329      o Merge FIPS 140-2 branch code.
330
331  Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
332
333      o CryptoAPI ENGINE support.
334      o Various precautionary measures.
335      o Fix for bugs affecting certificate request creation.
336      o Support for local machine keyset attribute in PKCS#12 files.
337
338  Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
339
340      o Backport of CMS functionality to 0.9.8.
341      o Fixes for bugs introduced with 0.9.8f.
342
343  Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
344
345      o Add gcc 4.2 support.
346      o Add support for AES and SSE2 assembly lanugauge optimization
347        for VC++ build.
348      o Support for RFC4507bis and server name extensions if explicitly 
349        selected at compile time.
350      o DTLS improvements.
351      o RFC4507bis support.
352      o TLS Extensions support.
353
354  Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
355
356      o Various ciphersuite selection fixes.
357      o RFC3779 support.
358
359  Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
360
361      o Introduce limits to prevent malicious key DoS  (CVE-2006-2940)
362      o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
363      o Changes to ciphersuite selection algorithm
364
365  Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
366
367      o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
368      o New cipher Camellia
369
370  Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
371
372      o Cipher string fixes.
373      o Fixes for VC++ 2005.
374      o Updated ECC cipher suite support.
375      o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
376      o Zlib compression usage fixes.
377      o Built in dynamic engine compilation support on Win32.
378      o Fixes auto dynamic engine loading in Win32.
379
380  Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
381
382      o Fix potential SSL 2.0 rollback, CVE-2005-2969
383      o Extended Windows CE support
384
385  Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
386
387      o Major work on the BIGNUM library for higher efficiency and to
388        make operations more streamlined and less contradictory.  This
389        is the result of a major audit of the BIGNUM library.
390      o Addition of BIGNUM functions for fields GF(2^m) and NIST
391        curves, to support the Elliptic Crypto functions.
392      o Major work on Elliptic Crypto; ECDH and ECDSA added, including
393        the use through EVP, X509 and ENGINE.
394      o New ASN.1 mini-compiler that's usable through the OpenSSL
395        configuration file.
396      o Added support for ASN.1 indefinite length constructed encoding.
397      o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
398      o Complete rework of shared library construction and linking
399        programs with shared or static libraries, through a separate
400        Makefile.shared.
401      o Rework of the passing of parameters from one Makefile to another.
402      o Changed ENGINE framework to load dynamic engine modules
403        automatically from specifically given directories.
404      o New structure and ASN.1 functions for CertificatePair.
405      o Changed the ZLIB compression method to be stateful.
406      o Changed the key-generation and primality testing "progress"
407        mechanism to take a structure that contains the ticker
408        function and an argument.
409      o New engine module: GMP (performs private key exponentiation).
410      o New engine module: VIA PadLOck ACE extension in VIA C3
411        Nehemiah processors.
412      o Added support for IPv6 addresses in certificate extensions.
413        See RFC 1884, section 2.2.
414      o Added support for certificate policy mappings, policy
415        constraints and name constraints.
416      o Added support for multi-valued AVAs in the OpenSSL
417        configuration file.
418      o Added support for multiple certificates with the same subject
419        in the 'openssl ca' index file.
420      o Make it possible to create self-signed certificates using
421        'openssl ca -selfsign'.
422      o Make it possible to generate a serial number file with
423        'openssl ca -create_serial'.
424      o New binary search functions with extended functionality.
425      o New BUF functions.
426      o New STORE structure and library to provide an interface to all
427        sorts of data repositories.  Supports storage of public and
428        private keys, certificates, CRLs, numbers and arbitrary blobs.
429	This library is unfortunately unfinished and unused withing
430	OpenSSL.
431      o New control functions for the error stack.
432      o Changed the PKCS#7 library to support one-pass S/MIME
433        processing.
434      o Added the possibility to compile without old deprecated
435        functionality with the OPENSSL_NO_DEPRECATED macro or the
436        'no-deprecated' argument to the config and Configure scripts.
437      o Constification of all ASN.1 conversion functions, and other
438        affected functions.
439      o Improved platform support for PowerPC.
440      o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
441      o New X509_VERIFY_PARAM structure to support parametrisation
442        of X.509 path validation.
443      o Major overhaul of RC4 performance on Intel P4, IA-64 and
444        AMD64.
445      o Changed the Configure script to have some algorithms disabled
446        by default.  Those can be explicitely enabled with the new
447        argument form 'enable-xxx'.
448      o Change the default digest in 'openssl' commands from MD5 to
449        SHA-1.
450      o Added support for DTLS.
451      o New BIGNUM blinding.
452      o Added support for the RSA-PSS encryption scheme
453      o Added support for the RSA X.931 padding.
454      o Added support for BSD sockets on NetWare.
455      o Added support for files larger than 2GB.
456      o Added initial support for Win64.
457      o Added alternate pkg-config files.
458
459  Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
460
461      o FIPS 1.1.1 module linking.
462      o Various ciphersuite selection fixes.
463
464  Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
465
466      o Introduce limits to prevent malicious key DoS  (CVE-2006-2940)
467      o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
468
469  Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
470
471      o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
472
473  Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
474
475      o Visual C++ 2005 fixes.
476      o Update Windows build system for FIPS.
477
478  Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
479
480      o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
481
482  Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
483
484      o Fix SSL 2.0 Rollback, CVE-2005-2969
485      o Allow use of fixed-length exponent on DSA signing
486      o Default fixed-window RSA, DSA, DH private-key operations
487
488  Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
489
490      o More compilation issues fixed.
491      o Adaptation to more modern Kerberos API.
492      o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
493      o Enhanced x86_64 assembler BIGNUM module.
494      o More constification.
495      o Added processing of proxy certificates (RFC 3820).
496
497  Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
498
499      o Several compilation issues fixed.
500      o Many memory allocation failure checks added.
501      o Improved comparison of X509 Name type.
502      o Mandatory basic checks on certificates.
503      o Performance improvements.
504
505  Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
506
507      o Fix race condition in CRL checking code.
508      o Fixes to PKCS#7 (S/MIME) code.
509
510  Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
511
512      o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
513      o Security: Fix null-pointer assignment in do_change_cipher_spec()
514      o Allow multiple active certificates with same subject in CA index
515      o Multiple X509 verification fixes
516      o Speed up HMAC and other operations
517
518  Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
519
520      o Security: fix various ASN1 parsing bugs.
521      o New -ignore_err option to OCSP utility.
522      o Various interop and bug fixes in S/MIME code.
523      o SSL/TLS protocol fix for unrequested client certificates.
524
525  Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
526
527      o Security: counter the Klima-Pokorny-Rosa extension of
528        Bleichbacher's attack 
529      o Security: make RSA blinding default.
530      o Configuration: Irix fixes, AIX fixes, better mingw support.
531      o Support for new platforms: linux-ia64-ecc.
532      o Build: shared library support fixes.
533      o ASN.1: treat domainComponent correctly.
534      o Documentation: fixes and additions.
535
536  Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
537
538      o Security: Important security related bugfixes.
539      o Enhanced compatibility with MIT Kerberos.
540      o Can be built without the ENGINE framework.
541      o IA32 assembler enhancements.
542      o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
543      o Configuration: the no-err option now works properly.
544      o SSL/TLS: now handles manual certificate chain building.
545      o SSL/TLS: certain session ID malfunctions corrected.
546
547  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
548
549      o New library section OCSP.
550      o Complete rewrite of ASN1 code.
551      o CRL checking in verify code and openssl utility.
552      o Extension copying in 'ca' utility.
553      o Flexible display options in 'ca' utility.
554      o Provisional support for international characters with UTF8.
555      o Support for external crypto devices ('engine') is no longer
556        a separate distribution.
557      o New elliptic curve library section.
558      o New AES (Rijndael) library section.
559      o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
560        Linux x86_64, Linux 64-bit on Sparc v9
561      o Extended support for some platforms: VxWorks
562      o Enhanced support for shared libraries.
563      o Now only builds PIC code when shared library support is requested.
564      o Support for pkg-config.
565      o Lots of new manuals.
566      o Makes symbolic links to or copies of manuals to cover all described
567        functions.
568      o Change DES API to clean up the namespace (some applications link also
569        against libdes providing similar functions having the same name).
570        Provide macros for backward compatibility (will be removed in the
571        future).
572      o Unify handling of cryptographic algorithms (software and engine)
573        to be available via EVP routines for asymmetric and symmetric ciphers.
574      o NCONF: new configuration handling routines.
575      o Change API to use more 'const' modifiers to improve error checking
576        and help optimizers.
577      o Finally remove references to RSAref.
578      o Reworked parts of the BIGNUM code.
579      o Support for new engines: Broadcom ubsec, Accelerated Encryption
580        Processing, IBM 4758.
581      o A few new engines added in the demos area.
582      o Extended and corrected OID (object identifier) table.
583      o PRNG: query at more locations for a random device, automatic query for
584        EGD style random sources at several locations.
585      o SSL/TLS: allow optional cipher choice according to server's preference.
586      o SSL/TLS: allow server to explicitly set new session ids.
587      o SSL/TLS: support Kerberos cipher suites (RFC2712).
588	Only supports MIT Kerberos for now.
589      o SSL/TLS: allow more precise control of renegotiations and sessions.
590      o SSL/TLS: add callback to retrieve SSL/TLS messages.
591      o SSL/TLS: support AES cipher suites (RFC3268).
592
593  Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
594
595      o Security: fix various ASN1 parsing bugs.
596      o SSL/TLS protocol fix for unrequested client certificates.
597
598  Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
599
600      o Security: counter the Klima-Pokorny-Rosa extension of
601        Bleichbacher's attack 
602      o Security: make RSA blinding default.
603      o Build: shared library support fixes.
604
605  Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
606
607      o Important security related bugfixes.
608
609  Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
610
611      o New configuration targets for Tandem OSS and A/UX.
612      o New OIDs for Microsoft attributes.
613      o Better handling of SSL session caching.
614      o Better comparison of distinguished names.
615      o Better handling of shared libraries in a mixed GNU/non-GNU environment.
616      o Support assembler code with Borland C.
617      o Fixes for length problems.
618      o Fixes for uninitialised variables.
619      o Fixes for memory leaks, some unusual crashes and some race conditions.
620      o Fixes for smaller building problems.
621      o Updates of manuals, FAQ and other instructive documents.
622
623  Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
624
625      o Important building fixes on Unix.
626
627  Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
628
629      o Various important bugfixes.
630
631  Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
632
633      o Important security related bugfixes.
634      o Various SSL/TLS library bugfixes.
635
636  Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
637
638      o Various SSL/TLS library bugfixes.
639      o Fix DH parameter generation for 'non-standard' generators.
640
641  Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
642
643      o Various SSL/TLS library bugfixes.
644      o BIGNUM library fixes.
645      o RSA OAEP and random number generation fixes.
646      o Object identifiers corrected and added.
647      o Add assembler BN routines for IA64.
648      o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
649        MIPS Linux; shared library support for Irix, HP-UX.
650      o Add crypto accelerator support for AEP, Baltimore SureWare,
651        Broadcom and Cryptographic Appliance's keyserver
652        [in 0.9.6c-engine release].
653
654  Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
655
656      o Security fix: PRNG improvements.
657      o Security fix: RSA OAEP check.
658      o Security fix: Reinsert and fix countermeasure to Bleichbacher's
659        attack.
660      o MIPS bug fix in BIGNUM.
661      o Bug fix in "openssl enc".
662      o Bug fix in X.509 printing routine.
663      o Bug fix in DSA verification routine and DSA S/MIME verification.
664      o Bug fix to make PRNG thread-safe.
665      o Bug fix in RAND_file_name().
666      o Bug fix in compatibility mode trust settings.
667      o Bug fix in blowfish EVP.
668      o Increase default size for BIO buffering filter.
669      o Compatibility fixes in some scripts.
670
671  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
672
673      o Security fix: change behavior of OpenSSL to avoid using
674        environment variables when running as root.
675      o Security fix: check the result of RSA-CRT to reduce the
676        possibility of deducing the private key from an incorrectly
677        calculated signature.
678      o Security fix: prevent Bleichenbacher's DSA attack.
679      o Security fix: Zero the premaster secret after deriving the
680        master secret in DH ciphersuites.
681      o Reimplement SSL_peek(), which had various problems.
682      o Compatibility fix: the function des_encrypt() renamed to
683        des_encrypt1() to avoid clashes with some Unixen libc.
684      o Bug fixes for Win32, HP/UX and Irix.
685      o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
686        memory checking routines.
687      o Bug fixes for RSA operations in threaded environments.
688      o Bug fixes in misc. openssl applications.
689      o Remove a few potential memory leaks.
690      o Add tighter checks of BIGNUM routines.
691      o Shared library support has been reworked for generality.
692      o More documentation.
693      o New function BN_rand_range().
694      o Add "-rand" option to openssl s_client and s_server.
695
696  Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
697
698      o Some documentation for BIO and SSL libraries.
699      o Enhanced chain verification using key identifiers.
700      o New sign and verify options to 'dgst' application.
701      o Support for DER and PEM encoded messages in 'smime' application.
702      o New 'rsautl' application, low level RSA utility.
703      o MD4 now included.
704      o Bugfix for SSL rollback padding check.
705      o Support for external crypto devices [1].
706      o Enhanced EVP interface.
707
708    [1] The support for external crypto devices is currently a separate
709        distribution.  See the file README.ENGINE.
710
711  Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
712
713      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 
714      o Shared library support for HPUX and Solaris-gcc
715      o Support of Linux/IA64
716      o Assembler support for Mingw32
717      o New 'rand' application
718      o New way to check for existence of algorithms from scripts
719
720  Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
721
722      o S/MIME support in new 'smime' command
723      o Documentation for the OpenSSL command line application
724      o Automation of 'req' application
725      o Fixes to make s_client, s_server work under Windows
726      o Support for multiple fieldnames in SPKACs
727      o New SPKAC command line utilty and associated library functions
728      o Options to allow passwords to be obtained from various sources
729      o New public key PEM format and options to handle it
730      o Many other fixes and enhancements to command line utilities
731      o Usable certificate chain verification
732      o Certificate purpose checking
733      o Certificate trust settings
734      o Support of authority information access extension
735      o Extensions in certificate requests
736      o Simplified X509 name and attribute routines
737      o Initial (incomplete) support for international character sets
738      o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
739      o Read only memory BIOs and simplified creation function
740      o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
741        record; allow fragmentation and interleaving of handshake and other
742        data
743      o TLS/SSL code now "tolerates" MS SGC
744      o Work around for Netscape client certificate hang bug
745      o RSA_NULL option that removes RSA patent code but keeps other
746        RSA functionality
747      o Memory leak detection now allows applications to add extra information
748        via a per-thread stack
749      o PRNG robustness improved
750      o EGD support
751      o BIGNUM library bug fixes
752      o Faster DSA parameter generation
753      o Enhanced support for Alpha Linux
754      o Experimental MacOS support
755
756  Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
757
758      o Transparent support for PKCS#8 format private keys: these are used
759        by several software packages and are more secure than the standard
760        form
761      o PKCS#5 v2.0 implementation
762      o Password callbacks have a new void * argument for application data
763      o Avoid various memory leaks
764      o New pipe-like BIO that allows using the SSL library when actual I/O
765        must be handled by the application (BIO pair)
766
767  Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
768      o Lots of enhancements and cleanups to the Configuration mechanism
769      o RSA OEAP related fixes
770      o Added `openssl ca -revoke' option for revoking a certificate
771      o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
772      o Source tree cleanups: removed lots of obsolete files
773      o Thawte SXNet, certificate policies and CRL distribution points
774        extension support
775      o Preliminary (experimental) S/MIME support
776      o Support for ASN.1 UTF8String and VisibleString
777      o Full integration of PKCS#12 code
778      o Sparc assembler bignum implementation, optimized hash functions
779      o Option to disable selected ciphers
780
781  Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
782      o Fixed a security hole related to session resumption
783      o Fixed RSA encryption routines for the p < q case
784      o "ALL" in cipher lists now means "everything except NULL ciphers"
785      o Support for Triple-DES CBCM cipher
786      o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
787      o First support for new TLSv1 ciphers
788      o Added a few new BIOs (syslog BIO, reliable BIO)
789      o Extended support for DSA certificate/keys.
790      o Extended support for Certificate Signing Requests (CSR)
791      o Initial support for X.509v3 extensions
792      o Extended support for compression inside the SSL record layer
793      o Overhauled Win32 builds
794      o Cleanups and fixes to the Big Number (BN) library
795      o Support for ASN.1 GeneralizedTime
796      o Splitted ASN.1 SETs from SEQUENCEs
797      o ASN1 and PEM support for Netscape Certificate Sequences
798      o Overhauled Perl interface
799      o Lots of source tree cleanups.
800      o Lots of memory leak fixes.
801      o Lots of bug fixes.
802
803  Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
804      o Integration of the popular NO_RSA/NO_DSA patches
805      o Initial support for compression inside the SSL record layer
806      o Added BIO proxy and filtering functionality
807      o Extended Big Number (BN) library
808      o Added RIPE MD160 message digest
809      o Addeed support for RC2/64bit cipher
810      o Extended ASN.1 parser routines
811      o Adjustations of the source tree for CVS
812      o Support for various new platforms
813
814