OpenSSL CHANGES
_______________
- Changes between 0.9.6h and 0.9.7 [XX xxx 2002]
+ Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
+
+ *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
+ code (06) was taken as the first octet of the session ID and the last
+ octet was ignored consequently. As a result SSLv2 client side session
+ caching could not have worked due to the session ID mismatch between
+ client and server.
+ Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
+ PR #377.
+ [Lutz Jaenicke]
+
+ *) Change the declaration of needed Kerberos libraries to use EX_LIBS
+ instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
+ removed entirely.
+ [Richard Levitte]
+
+ *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
+ seems that in spite of existing for more than a year, many application
+ author have done nothing to provide the necessary callbacks, which
+ means that this particular engine will not work properly anywhere.
+ This is a very unfortunate situation which forces us, in the name
+ of usability, to give the hw_ncipher.c a static lock, which is part
+ of libcrypto.
+ NOTE: This is for the 0.9.7 series ONLY. This hack will never
+ appear in 0.9.8 or later. We EXPECT application authors to have
+ dealt properly with this when 0.9.8 is released (unless we actually
+ make such changes in the libcrypto locking code that changes will
+ have to be made anyway).
+ [Richard Levitte]
+
+ *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
+ octets have been read, EOF or an error occurs. Without this change
+ some truncated ASN1 structures will not produce an error.
+ [Steve Henson]
+
+ *) Disable Heimdal support, since it hasn't been fully implemented.
+ Still give the possibility to force the use of Heimdal, but with
+ warnings and a request that patches get sent to openssl-dev.
+ [Richard Levitte]
+
+ *) Add the VC-CE target, introduce the WINCE sysname, and add
+ INSTALL.WCE and appropriate conditionals to make it build.
+ [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
+
+ *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
+ cygssl-x.y.z.dll, where x, y and z are the major, minor and
+ edit numbers of the version.
+ [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
+
+ *) Introduce safe string copy and catenation functions
+ (BUF_strlcpy() and BUF_strlcat()).
+ [Ben Laurie (CHATS) and Richard Levitte]
+
+ *) Avoid using fixed-size buffers for one-line DNs.
+ [Ben Laurie (CHATS)]
+
+ *) Add BUF_MEM_grow_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
+
+ *) Avoid using fixed size buffers for configuration file location.
+ [Ben Laurie (CHATS)]
+
+ *) Avoid filename truncation for various CA files.
+ [Ben Laurie (CHATS)]
+
+ *) Use sizeof in preference to magic numbers.
+ [Ben Laurie (CHATS)]
+
+ *) Avoid filename truncation in cert requests.
+ [Ben Laurie (CHATS)]
+
+ *) Add assertions to check for (supposedly impossible) buffer
+ overflows.
+ [Ben Laurie (CHATS)]
+
+ *) Don't cache truncated DNS entries in the local cache (this could
+ potentially lead to a spoofing attack).
+ [Ben Laurie (CHATS)]
+
+ *) Fix various buffers to be large enough for hex/decimal
+ representations in a platform independent manner.
+ [Ben Laurie (CHATS)]
+
+ *) Add CRYPTO_realloc_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
+
+ *) Add BIO_indent() to avoid much slightly worrying code to do
+ indents.
+ [Ben Laurie (CHATS)]
+
+ *) Convert sprintf()/BIO_puts() to BIO_printf().
+ [Ben Laurie (CHATS)]
+
+ *) buffer_gets() could terminate with the buffer only half
+ full. Fixed.
+ [Ben Laurie (CHATS)]
+
+ *) Add assertions to prevent user-supplied crypto functions from
+ overflowing internal buffers by having large block sizes, etc.
+ [Ben Laurie (CHATS)]
+
+ *) New OPENSSL_assert() macro (similar to assert(), but enabled
+ unconditionally).
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused copy of key in RC4.
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
+ [Ben Laurie (CHATS)]
+
+ *) Fix off-by-one error in EGD path.
+ [Ben Laurie (CHATS)]
+
+ *) If RANDFILE path is too long, ignore instead of truncating.
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and incorrectly sized X.509 structure
+ CBCParameter.
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and dangerous function knumber().
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and dangerous structure, KSSL_ERR.
+ [Ben Laurie (CHATS)]
+
+ *) Protect against overlong session ID context length in an encoded
+ session object. Since these are local, this does not appear to be
+ exploitable.
+ [Ben Laurie (CHATS)]
*) Change from security patch (see 0.9.6e below) that did not affect
the 0.9.6 release series:
*) Clean old EAY MD5 hack from e_os.h.
[Richard Levitte]
- Changes between 0.9.6g and 0.9.6h [xx XXX xxxx]
+ Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
+
+ *) New function OPENSSL_cleanse(), which is used to cleanse a section of
+ memory from it's contents. This is done with a counter that will
+ place alternating values in each byte. This can be used to solve
+ two issues: 1) the removal of calls to memset() by highly optimizing
+ compilers, and 2) cleansing with other values than 0, since those can
+ be read through on certain media, for example a swap space on disk.
+ [Geoff Thorpe]
+
+ *) Bugfix: client side session caching did not work with external caching,
+ because the session->cipher setting was not restored when reloading
+ from the external cache. This problem was masked, when
+ SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
+ (Found by Steve Haslam <steve@araqnid.ddts.net>.)
+ [Lutz Jaenicke]
+
+ *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
+ length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
+ [Zeev Lieber <zeev-l@yahoo.com>]
+
+ *) Undo an undocumented change introduced in 0.9.6e which caused
+ repeated calls to OpenSSL_add_all_ciphers() and
+ OpenSSL_add_all_digests() to be ignored, even after calling
+ EVP_cleanup().
+ [Richard Levitte]
+
+ *) Change the default configuration reader to deal with last line not
+ being properly terminated.
+ [Richard Levitte]
*) Change X509_NAME_cmp() so it applies the special rules on handling
DN values that are of type PrintableString, as well as RDNs of type
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