NEWS revision 352193
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 1.0.2s and OpenSSL 1.0.2t [10 Sep 2019]
9
10      o Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
11        (CVE-2019-1563)
12      o For built-in EC curves, ensure an EC_GROUP built from the curve name is
13        used even when parsing explicit parameters
14      o Compute ECC cofactors if not provided during EC_GROUP construction
15        (CVE-2019-1547)
16      o Document issue with installation paths in diverse Windows builds
17        (CVE-2019-1552)
18
19  Major changes between OpenSSL 1.0.2r and OpenSSL 1.0.2s [28 May 2019]
20
21      o None
22
23  Major changes between OpenSSL 1.0.2q and OpenSSL 1.0.2r [26 Feb 2019]
24
25      o 0-byte record padding oracle (CVE-2019-1559)
26
27  Major changes between OpenSSL 1.0.2p and OpenSSL 1.0.2q [20 Nov 2018]
28
29      o Microarchitecture timing vulnerability in ECC scalar multiplication (CVE-2018-5407)
30      o Timing vulnerability in DSA signature generation (CVE-2018-0734)
31
32  Major changes between OpenSSL 1.0.2o and OpenSSL 1.0.2p [14 Aug 2018]
33
34      o Client DoS due to large DH parameter (CVE-2018-0732)
35      o Cache timing vulnerability in RSA Key Generation (CVE-2018-0737)
36
37  Major changes between OpenSSL 1.0.2n and OpenSSL 1.0.2o [27 Mar 2018]
38
39      o Constructed ASN.1 types with a recursive definition could exceed the
40        stack (CVE-2018-0739)
41
42  Major changes between OpenSSL 1.0.2m and OpenSSL 1.0.2n [7 Dec 2017]
43
44      o Read/write after SSL object in error state (CVE-2017-3737)
45      o rsaz_1024_mul_avx2 overflow bug on x86_64 (CVE-2017-3738)
46
47  Major changes between OpenSSL 1.0.2l and OpenSSL 1.0.2m [2 Nov 2017]
48
49      o bn_sqrx8x_internal carry bug on x86_64 (CVE-2017-3736)
50      o Malformed X.509 IPAddressFamily could cause OOB read (CVE-2017-3735)
51
52  Major changes between OpenSSL 1.0.2k and OpenSSL 1.0.2l [25 May 2017]
53
54      o config now recognises 64-bit mingw and chooses mingw64 instead of mingw
55
56  Major changes between OpenSSL 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
57
58      o Truncated packet could crash via OOB read (CVE-2017-3731)
59      o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
60      o Montgomery multiplication may produce incorrect results (CVE-2016-7055)
61
62  Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
63
64      o Missing CRL sanity check (CVE-2016-7052)
65
66  Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
67
68      o OCSP Status Request extension unbounded memory growth (CVE-2016-6304)
69      o SWEET32 Mitigation (CVE-2016-2183)
70      o OOB write in MDC2_Update() (CVE-2016-6303)
71      o Malformed SHA512 ticket DoS (CVE-2016-6302)
72      o OOB write in BN_bn2dec() (CVE-2016-2182)
73      o OOB read in TS_OBJ_print_bio() (CVE-2016-2180)
74      o Pointer arithmetic undefined behaviour (CVE-2016-2177)
75      o Constant time flag not preserved in DSA signing (CVE-2016-2178)
76      o DTLS buffered message DoS (CVE-2016-2179)
77      o DTLS replay protection DoS (CVE-2016-2181)
78      o Certificate message OOB reads (CVE-2016-6306)
79
80  Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
81
82      o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
83      o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
84      o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
85      o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
86      o EBCDIC overread (CVE-2016-2176)
87      o Modify behavior of ALPN to invoke callback after SNI/servername
88        callback, such that updates to the SSL_CTX affect ALPN.
89      o Remove LOW from the DEFAULT cipher list.  This removes singles DES from
90        the default.
91      o Only remove the SSLv2 methods with the no-ssl2-method option.
92
93  Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
94
95      o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
96      o Disable SSLv2 default build, default negotiation and weak ciphers
97        (CVE-2016-0800)
98      o Fix a double-free in DSA code (CVE-2016-0705)
99      o Disable SRP fake user seed to address a server memory leak
100        (CVE-2016-0798)
101      o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
102        (CVE-2016-0797)
103      o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
104      o Fix side channel attack on modular exponentiation (CVE-2016-0702)
105
106  Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
107
108      o DH small subgroups (CVE-2016-0701)
109      o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
110
111  Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
112
113      o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
114      o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
115      o X509_ATTRIBUTE memory leak (CVE-2015-3195)
116      o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
117      o In DSA_generate_parameters_ex, if the provided seed is too short,
118        return an error
119
120  Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
121
122      o Alternate chains certificate forgery (CVE-2015-1793)
123      o Race condition handling PSK identify hint (CVE-2015-3196)
124
125  Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
126
127      o Fix HMAC ABI incompatibility
128
129  Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
130
131      o Malformed ECParameters causes infinite loop (CVE-2015-1788)
132      o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
133      o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
134      o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
135      o Race condition handling NewSessionTicket (CVE-2015-1791)
136
137  Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
138
139      o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
140      o Multiblock corrupted pointer fix (CVE-2015-0290)
141      o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
142      o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
143      o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
144      o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
145      o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
146      o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
147      o Empty CKE with client auth and DHE fix (CVE-2015-1787)
148      o Handshake with unseeded PRNG fix (CVE-2015-0285)
149      o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
150      o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
151      o Removed the export ciphers from the DEFAULT ciphers
152
153  Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
154
155      o Suite B support for TLS 1.2 and DTLS 1.2
156      o Support for DTLS 1.2
157      o TLS automatic EC curve selection.
158      o API to set TLS supported signature algorithms and curves
159      o SSL_CONF configuration API.
160      o TLS Brainpool support.
161      o ALPN support.
162      o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
163
164  Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
165
166      o Build fixes for the Windows and OpenVMS platforms
167
168  Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
169
170      o Fix for CVE-2014-3571
171      o Fix for CVE-2015-0206
172      o Fix for CVE-2014-3569
173      o Fix for CVE-2014-3572
174      o Fix for CVE-2015-0204
175      o Fix for CVE-2015-0205
176      o Fix for CVE-2014-8275
177      o Fix for CVE-2014-3570
178
179  Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
180
181      o Fix for CVE-2014-3513
182      o Fix for CVE-2014-3567
183      o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
184      o Fix for CVE-2014-3568
185
186  Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
187
188      o Fix for CVE-2014-3512
189      o Fix for CVE-2014-3511
190      o Fix for CVE-2014-3510
191      o Fix for CVE-2014-3507
192      o Fix for CVE-2014-3506
193      o Fix for CVE-2014-3505
194      o Fix for CVE-2014-3509
195      o Fix for CVE-2014-5139
196      o Fix for CVE-2014-3508
197
198  Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
199
200      o Fix for CVE-2014-0224
201      o Fix for CVE-2014-0221
202      o Fix for CVE-2014-0198
203      o Fix for CVE-2014-0195
204      o Fix for CVE-2014-3470
205      o Fix for CVE-2010-5298
206
207  Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
208
209      o Fix for CVE-2014-0160
210      o Add TLS padding extension workaround for broken servers.
211      o Fix for CVE-2014-0076
212
213  Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
214
215      o Don't include gmt_unix_time in TLS server and client random values
216      o Fix for TLS record tampering bug CVE-2013-4353
217      o Fix for TLS version checking bug CVE-2013-6449
218      o Fix for DTLS retransmission bug CVE-2013-6450
219
220  Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
221
222      o Corrected fix for CVE-2013-0169
223
224  Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
225
226      o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
227      o Include the fips configuration module.
228      o Fix OCSP bad key DoS attack CVE-2013-0166
229      o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
230      o Fix for TLS AESNI record handling flaw CVE-2012-2686
231
232  Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
233
234      o Fix TLS/DTLS record length checking bug CVE-2012-2333
235      o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
236
237  Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
238
239      o Fix compilation error on non-x86 platforms.
240      o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
241      o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
242
243  Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
244
245      o Fix for ASN1 overflow bug CVE-2012-2110
246      o Workarounds for some servers that hang on long client hellos.
247      o Fix SEGV in AES code.
248
249  Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
250
251      o TLS/DTLS heartbeat support.
252      o SCTP support.
253      o RFC 5705 TLS key material exporter.
254      o RFC 5764 DTLS-SRTP negotiation.
255      o Next Protocol Negotiation.
256      o PSS signatures in certificates, requests and CRLs.
257      o Support for password based recipient info for CMS.
258      o Support TLS v1.2 and TLS v1.1.
259      o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
260      o SRP support.
261
262  Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
263
264      o Fix for CMS/PKCS#7 MMA CVE-2012-0884
265      o Corrected fix for CVE-2011-4619
266      o Various DTLS fixes.
267
268  Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
269
270      o Fix for DTLS DoS issue CVE-2012-0050
271
272  Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
273
274      o Fix for DTLS plaintext recovery attack CVE-2011-4108
275      o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
276      o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
277      o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
278      o Check for malformed RFC3779 data CVE-2011-4577
279
280  Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
281
282      o Fix for CRL vulnerability issue CVE-2011-3207
283      o Fix for ECDH crashes CVE-2011-3210
284      o Protection against EC timing attacks.
285      o Support ECDH ciphersuites for certificates using SHA2 algorithms.
286      o Various DTLS fixes.
287
288  Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
289
290      o Fix for security issue CVE-2011-0014
291
292  Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
293
294      o Fix for security issue CVE-2010-4180
295      o Fix for CVE-2010-4252
296      o Fix mishandling of absent EC point format extension.
297      o Fix various platform compilation issues.
298      o Corrected fix for security issue CVE-2010-3864.
299
300  Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
301
302      o Fix for security issue CVE-2010-3864.
303      o Fix for CVE-2010-2939
304      o Fix WIN32 build system for GOST ENGINE.
305
306  Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
307
308      o Fix for security issue CVE-2010-1633.
309      o GOST MAC and CFB fixes.
310
311  Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
312
313      o RFC3280 path validation: sufficient to process PKITS tests.
314      o Integrated support for PVK files and keyblobs.
315      o Change default private key format to PKCS#8.
316      o CMS support: able to process all examples in RFC4134
317      o Streaming ASN1 encode support for PKCS#7 and CMS.
318      o Multiple signer and signer add support for PKCS#7 and CMS.
319      o ASN1 printing support.
320      o Whirlpool hash algorithm added.
321      o RFC3161 time stamp support.
322      o New generalised public key API supporting ENGINE based algorithms.
323      o New generalised public key API utilities.
324      o New ENGINE supporting GOST algorithms.
325      o SSL/TLS GOST ciphersuite support.
326      o PKCS#7 and CMS GOST support.
327      o RFC4279 PSK ciphersuite support.
328      o Supported points format extension for ECC ciphersuites.
329      o ecdsa-with-SHA224/256/384/512 signature types.
330      o dsa-with-SHA224 and dsa-with-SHA256 signature types.
331      o Opaque PRF Input TLS extension support.
332      o Updated time routines to avoid OS limitations.
333
334  Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
335
336      o CFB cipher definition fixes.
337      o Fix security issues CVE-2010-0740 and CVE-2010-0433.
338
339  Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
340
341      o Cipher definition fixes.
342      o Workaround for slow RAND_poll() on some WIN32 versions.
343      o Remove MD2 from algorithm tables.
344      o SPKAC handling fixes.
345      o Support for RFC5746 TLS renegotiation extension.
346      o Compression memory leak fixed.
347      o Compression session resumption fixed.
348      o Ticket and SNI coexistence fixes.
349      o Many fixes to DTLS handling. 
350
351  Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
352
353      o Temporary work around for CVE-2009-3555: disable renegotiation.
354
355  Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
356
357      o Fix various build issues.
358      o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
359
360  Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
361
362      o Fix security issue (CVE-2008-5077)
363      o Merge FIPS 140-2 branch code.
364
365  Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
366
367      o CryptoAPI ENGINE support.
368      o Various precautionary measures.
369      o Fix for bugs affecting certificate request creation.
370      o Support for local machine keyset attribute in PKCS#12 files.
371
372  Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
373
374      o Backport of CMS functionality to 0.9.8.
375      o Fixes for bugs introduced with 0.9.8f.
376
377  Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
378
379      o Add gcc 4.2 support.
380      o Add support for AES and SSE2 assembly lanugauge optimization
381        for VC++ build.
382      o Support for RFC4507bis and server name extensions if explicitly 
383        selected at compile time.
384      o DTLS improvements.
385      o RFC4507bis support.
386      o TLS Extensions support.
387
388  Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
389
390      o Various ciphersuite selection fixes.
391      o RFC3779 support.
392
393  Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
394
395      o Introduce limits to prevent malicious key DoS  (CVE-2006-2940)
396      o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
397      o Changes to ciphersuite selection algorithm
398
399  Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
400
401      o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
402      o New cipher Camellia
403
404  Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
405
406      o Cipher string fixes.
407      o Fixes for VC++ 2005.
408      o Updated ECC cipher suite support.
409      o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
410      o Zlib compression usage fixes.
411      o Built in dynamic engine compilation support on Win32.
412      o Fixes auto dynamic engine loading in Win32.
413
414  Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
415
416      o Fix potential SSL 2.0 rollback, CVE-2005-2969
417      o Extended Windows CE support
418
419  Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
420
421      o Major work on the BIGNUM library for higher efficiency and to
422        make operations more streamlined and less contradictory.  This
423        is the result of a major audit of the BIGNUM library.
424      o Addition of BIGNUM functions for fields GF(2^m) and NIST
425        curves, to support the Elliptic Crypto functions.
426      o Major work on Elliptic Crypto; ECDH and ECDSA added, including
427        the use through EVP, X509 and ENGINE.
428      o New ASN.1 mini-compiler that's usable through the OpenSSL
429        configuration file.
430      o Added support for ASN.1 indefinite length constructed encoding.
431      o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
432      o Complete rework of shared library construction and linking
433        programs with shared or static libraries, through a separate
434        Makefile.shared.
435      o Rework of the passing of parameters from one Makefile to another.
436      o Changed ENGINE framework to load dynamic engine modules
437        automatically from specifically given directories.
438      o New structure and ASN.1 functions for CertificatePair.
439      o Changed the ZLIB compression method to be stateful.
440      o Changed the key-generation and primality testing "progress"
441        mechanism to take a structure that contains the ticker
442        function and an argument.
443      o New engine module: GMP (performs private key exponentiation).
444      o New engine module: VIA PadLOck ACE extension in VIA C3
445        Nehemiah processors.
446      o Added support for IPv6 addresses in certificate extensions.
447        See RFC 1884, section 2.2.
448      o Added support for certificate policy mappings, policy
449        constraints and name constraints.
450      o Added support for multi-valued AVAs in the OpenSSL
451        configuration file.
452      o Added support for multiple certificates with the same subject
453        in the 'openssl ca' index file.
454      o Make it possible to create self-signed certificates using
455        'openssl ca -selfsign'.
456      o Make it possible to generate a serial number file with
457        'openssl ca -create_serial'.
458      o New binary search functions with extended functionality.
459      o New BUF functions.
460      o New STORE structure and library to provide an interface to all
461        sorts of data repositories.  Supports storage of public and
462        private keys, certificates, CRLs, numbers and arbitrary blobs.
463	This library is unfortunately unfinished and unused withing
464	OpenSSL.
465      o New control functions for the error stack.
466      o Changed the PKCS#7 library to support one-pass S/MIME
467        processing.
468      o Added the possibility to compile without old deprecated
469        functionality with the OPENSSL_NO_DEPRECATED macro or the
470        'no-deprecated' argument to the config and Configure scripts.
471      o Constification of all ASN.1 conversion functions, and other
472        affected functions.
473      o Improved platform support for PowerPC.
474      o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
475      o New X509_VERIFY_PARAM structure to support parametrisation
476        of X.509 path validation.
477      o Major overhaul of RC4 performance on Intel P4, IA-64 and
478        AMD64.
479      o Changed the Configure script to have some algorithms disabled
480        by default.  Those can be explicitely enabled with the new
481        argument form 'enable-xxx'.
482      o Change the default digest in 'openssl' commands from MD5 to
483        SHA-1.
484      o Added support for DTLS.
485      o New BIGNUM blinding.
486      o Added support for the RSA-PSS encryption scheme
487      o Added support for the RSA X.931 padding.
488      o Added support for BSD sockets on NetWare.
489      o Added support for files larger than 2GB.
490      o Added initial support for Win64.
491      o Added alternate pkg-config files.
492
493  Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
494
495      o FIPS 1.1.1 module linking.
496      o Various ciphersuite selection fixes.
497
498  Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
499
500      o Introduce limits to prevent malicious key DoS  (CVE-2006-2940)
501      o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
502
503  Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
504
505      o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
506
507  Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
508
509      o Visual C++ 2005 fixes.
510      o Update Windows build system for FIPS.
511
512  Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
513
514      o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
515
516  Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
517
518      o Fix SSL 2.0 Rollback, CVE-2005-2969
519      o Allow use of fixed-length exponent on DSA signing
520      o Default fixed-window RSA, DSA, DH private-key operations
521
522  Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
523
524      o More compilation issues fixed.
525      o Adaptation to more modern Kerberos API.
526      o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
527      o Enhanced x86_64 assembler BIGNUM module.
528      o More constification.
529      o Added processing of proxy certificates (RFC 3820).
530
531  Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
532
533      o Several compilation issues fixed.
534      o Many memory allocation failure checks added.
535      o Improved comparison of X509 Name type.
536      o Mandatory basic checks on certificates.
537      o Performance improvements.
538
539  Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
540
541      o Fix race condition in CRL checking code.
542      o Fixes to PKCS#7 (S/MIME) code.
543
544  Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
545
546      o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
547      o Security: Fix null-pointer assignment in do_change_cipher_spec()
548      o Allow multiple active certificates with same subject in CA index
549      o Multiple X509 verification fixes
550      o Speed up HMAC and other operations
551
552  Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
553
554      o Security: fix various ASN1 parsing bugs.
555      o New -ignore_err option to OCSP utility.
556      o Various interop and bug fixes in S/MIME code.
557      o SSL/TLS protocol fix for unrequested client certificates.
558
559  Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
560
561      o Security: counter the Klima-Pokorny-Rosa extension of
562        Bleichbacher's attack 
563      o Security: make RSA blinding default.
564      o Configuration: Irix fixes, AIX fixes, better mingw support.
565      o Support for new platforms: linux-ia64-ecc.
566      o Build: shared library support fixes.
567      o ASN.1: treat domainComponent correctly.
568      o Documentation: fixes and additions.
569
570  Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
571
572      o Security: Important security related bugfixes.
573      o Enhanced compatibility with MIT Kerberos.
574      o Can be built without the ENGINE framework.
575      o IA32 assembler enhancements.
576      o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
577      o Configuration: the no-err option now works properly.
578      o SSL/TLS: now handles manual certificate chain building.
579      o SSL/TLS: certain session ID malfunctions corrected.
580
581  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
582
583      o New library section OCSP.
584      o Complete rewrite of ASN1 code.
585      o CRL checking in verify code and openssl utility.
586      o Extension copying in 'ca' utility.
587      o Flexible display options in 'ca' utility.
588      o Provisional support for international characters with UTF8.
589      o Support for external crypto devices ('engine') is no longer
590        a separate distribution.
591      o New elliptic curve library section.
592      o New AES (Rijndael) library section.
593      o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
594        Linux x86_64, Linux 64-bit on Sparc v9
595      o Extended support for some platforms: VxWorks
596      o Enhanced support for shared libraries.
597      o Now only builds PIC code when shared library support is requested.
598      o Support for pkg-config.
599      o Lots of new manuals.
600      o Makes symbolic links to or copies of manuals to cover all described
601        functions.
602      o Change DES API to clean up the namespace (some applications link also
603        against libdes providing similar functions having the same name).
604        Provide macros for backward compatibility (will be removed in the
605        future).
606      o Unify handling of cryptographic algorithms (software and engine)
607        to be available via EVP routines for asymmetric and symmetric ciphers.
608      o NCONF: new configuration handling routines.
609      o Change API to use more 'const' modifiers to improve error checking
610        and help optimizers.
611      o Finally remove references to RSAref.
612      o Reworked parts of the BIGNUM code.
613      o Support for new engines: Broadcom ubsec, Accelerated Encryption
614        Processing, IBM 4758.
615      o A few new engines added in the demos area.
616      o Extended and corrected OID (object identifier) table.
617      o PRNG: query at more locations for a random device, automatic query for
618        EGD style random sources at several locations.
619      o SSL/TLS: allow optional cipher choice according to server's preference.
620      o SSL/TLS: allow server to explicitly set new session ids.
621      o SSL/TLS: support Kerberos cipher suites (RFC2712).
622	Only supports MIT Kerberos for now.
623      o SSL/TLS: allow more precise control of renegotiations and sessions.
624      o SSL/TLS: add callback to retrieve SSL/TLS messages.
625      o SSL/TLS: support AES cipher suites (RFC3268).
626
627  Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
628
629      o Security: fix various ASN1 parsing bugs.
630      o SSL/TLS protocol fix for unrequested client certificates.
631
632  Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
633
634      o Security: counter the Klima-Pokorny-Rosa extension of
635        Bleichbacher's attack 
636      o Security: make RSA blinding default.
637      o Build: shared library support fixes.
638
639  Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
640
641      o Important security related bugfixes.
642
643  Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
644
645      o New configuration targets for Tandem OSS and A/UX.
646      o New OIDs for Microsoft attributes.
647      o Better handling of SSL session caching.
648      o Better comparison of distinguished names.
649      o Better handling of shared libraries in a mixed GNU/non-GNU environment.
650      o Support assembler code with Borland C.
651      o Fixes for length problems.
652      o Fixes for uninitialised variables.
653      o Fixes for memory leaks, some unusual crashes and some race conditions.
654      o Fixes for smaller building problems.
655      o Updates of manuals, FAQ and other instructive documents.
656
657  Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
658
659      o Important building fixes on Unix.
660
661  Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
662
663      o Various important bugfixes.
664
665  Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
666
667      o Important security related bugfixes.
668      o Various SSL/TLS library bugfixes.
669
670  Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
671
672      o Various SSL/TLS library bugfixes.
673      o Fix DH parameter generation for 'non-standard' generators.
674
675  Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
676
677      o Various SSL/TLS library bugfixes.
678      o BIGNUM library fixes.
679      o RSA OAEP and random number generation fixes.
680      o Object identifiers corrected and added.
681      o Add assembler BN routines for IA64.
682      o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
683        MIPS Linux; shared library support for Irix, HP-UX.
684      o Add crypto accelerator support for AEP, Baltimore SureWare,
685        Broadcom and Cryptographic Appliance's keyserver
686        [in 0.9.6c-engine release].
687
688  Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
689
690      o Security fix: PRNG improvements.
691      o Security fix: RSA OAEP check.
692      o Security fix: Reinsert and fix countermeasure to Bleichbacher's
693        attack.
694      o MIPS bug fix in BIGNUM.
695      o Bug fix in "openssl enc".
696      o Bug fix in X.509 printing routine.
697      o Bug fix in DSA verification routine and DSA S/MIME verification.
698      o Bug fix to make PRNG thread-safe.
699      o Bug fix in RAND_file_name().
700      o Bug fix in compatibility mode trust settings.
701      o Bug fix in blowfish EVP.
702      o Increase default size for BIO buffering filter.
703      o Compatibility fixes in some scripts.
704
705  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
706
707      o Security fix: change behavior of OpenSSL to avoid using
708        environment variables when running as root.
709      o Security fix: check the result of RSA-CRT to reduce the
710        possibility of deducing the private key from an incorrectly
711        calculated signature.
712      o Security fix: prevent Bleichenbacher's DSA attack.
713      o Security fix: Zero the premaster secret after deriving the
714        master secret in DH ciphersuites.
715      o Reimplement SSL_peek(), which had various problems.
716      o Compatibility fix: the function des_encrypt() renamed to
717        des_encrypt1() to avoid clashes with some Unixen libc.
718      o Bug fixes for Win32, HP/UX and Irix.
719      o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
720        memory checking routines.
721      o Bug fixes for RSA operations in threaded environments.
722      o Bug fixes in misc. openssl applications.
723      o Remove a few potential memory leaks.
724      o Add tighter checks of BIGNUM routines.
725      o Shared library support has been reworked for generality.
726      o More documentation.
727      o New function BN_rand_range().
728      o Add "-rand" option to openssl s_client and s_server.
729
730  Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
731
732      o Some documentation for BIO and SSL libraries.
733      o Enhanced chain verification using key identifiers.
734      o New sign and verify options to 'dgst' application.
735      o Support for DER and PEM encoded messages in 'smime' application.
736      o New 'rsautl' application, low level RSA utility.
737      o MD4 now included.
738      o Bugfix for SSL rollback padding check.
739      o Support for external crypto devices [1].
740      o Enhanced EVP interface.
741
742    [1] The support for external crypto devices is currently a separate
743        distribution.  See the file README.ENGINE.
744
745  Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
746
747      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 
748      o Shared library support for HPUX and Solaris-gcc
749      o Support of Linux/IA64
750      o Assembler support for Mingw32
751      o New 'rand' application
752      o New way to check for existence of algorithms from scripts
753
754  Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
755
756      o S/MIME support in new 'smime' command
757      o Documentation for the OpenSSL command line application
758      o Automation of 'req' application
759      o Fixes to make s_client, s_server work under Windows
760      o Support for multiple fieldnames in SPKACs
761      o New SPKAC command line utilty and associated library functions
762      o Options to allow passwords to be obtained from various sources
763      o New public key PEM format and options to handle it
764      o Many other fixes and enhancements to command line utilities
765      o Usable certificate chain verification
766      o Certificate purpose checking
767      o Certificate trust settings
768      o Support of authority information access extension
769      o Extensions in certificate requests
770      o Simplified X509 name and attribute routines
771      o Initial (incomplete) support for international character sets
772      o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
773      o Read only memory BIOs and simplified creation function
774      o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
775        record; allow fragmentation and interleaving of handshake and other
776        data
777      o TLS/SSL code now "tolerates" MS SGC
778      o Work around for Netscape client certificate hang bug
779      o RSA_NULL option that removes RSA patent code but keeps other
780        RSA functionality
781      o Memory leak detection now allows applications to add extra information
782        via a per-thread stack
783      o PRNG robustness improved
784      o EGD support
785      o BIGNUM library bug fixes
786      o Faster DSA parameter generation
787      o Enhanced support for Alpha Linux
788      o Experimental MacOS support
789
790  Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
791
792      o Transparent support for PKCS#8 format private keys: these are used
793        by several software packages and are more secure than the standard
794        form
795      o PKCS#5 v2.0 implementation
796      o Password callbacks have a new void * argument for application data
797      o Avoid various memory leaks
798      o New pipe-like BIO that allows using the SSL library when actual I/O
799        must be handled by the application (BIO pair)
800
801  Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
802      o Lots of enhancements and cleanups to the Configuration mechanism
803      o RSA OEAP related fixes
804      o Added `openssl ca -revoke' option for revoking a certificate
805      o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
806      o Source tree cleanups: removed lots of obsolete files
807      o Thawte SXNet, certificate policies and CRL distribution points
808        extension support
809      o Preliminary (experimental) S/MIME support
810      o Support for ASN.1 UTF8String and VisibleString
811      o Full integration of PKCS#12 code
812      o Sparc assembler bignum implementation, optimized hash functions
813      o Option to disable selected ciphers
814
815  Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
816      o Fixed a security hole related to session resumption
817      o Fixed RSA encryption routines for the p < q case
818      o "ALL" in cipher lists now means "everything except NULL ciphers"
819      o Support for Triple-DES CBCM cipher
820      o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
821      o First support for new TLSv1 ciphers
822      o Added a few new BIOs (syslog BIO, reliable BIO)
823      o Extended support for DSA certificate/keys.
824      o Extended support for Certificate Signing Requests (CSR)
825      o Initial support for X.509v3 extensions
826      o Extended support for compression inside the SSL record layer
827      o Overhauled Win32 builds
828      o Cleanups and fixes to the Big Number (BN) library
829      o Support for ASN.1 GeneralizedTime
830      o Splitted ASN.1 SETs from SEQUENCEs
831      o ASN1 and PEM support for Netscape Certificate Sequences
832      o Overhauled Perl interface
833      o Lots of source tree cleanups.
834      o Lots of memory leak fixes.
835      o Lots of bug fixes.
836
837  Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
838      o Integration of the popular NO_RSA/NO_DSA patches
839      o Initial support for compression inside the SSL record layer
840      o Added BIO proxy and filtering functionality
841      o Extended Big Number (BN) library
842      o Added RIPE MD160 message digest
843      o Addeed support for RC2/64bit cipher
844      o Extended ASN.1 parser routines
845      o Adjustations of the source tree for CVS
846      o Support for various new platforms
847
848