OpenSSL CHANGES
_______________
- Changes between 0.9.6c and 0.9.6d [XX xxx XXXX]
+ Changes between 0.9.6e and 0.9.6f [XX xxx XXXX]
+
+ *) Use proper error handling instead of 'assertions' in buffer
+ overflow checks added in 0.9.6e. This prevents DoS (the
+ assertions could call abort()).
+ [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
+
+ Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
+
+ *) Fix cipher selection routines: ciphers without encryption had no flags
+ for the cipher strength set and where therefore not handled correctly
+ by the selection routines (PR #130).
+ [Lutz Jaenicke]
+
+ *) Fix EVP_dsa_sha macro.
+ [Nils Larsch]
+
+ *) New option
+ SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
+ for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
+ that was added in OpenSSL 0.9.6d.
+
+ As the countermeasure turned out to be incompatible with some
+ broken SSL implementations, the new option is part of SSL_OP_ALL.
+ SSL_OP_ALL is usually employed when compatibility with weird SSL
+ implementations is desired (e.g. '-bugs' option to 's_client' and
+ 's_server'), so the new option is automatically set in many
+ applications.
+ [Bodo Moeller]
+
+ *) Changes in security patch:
+
+ Changes marked "(CHATS)" were sponsored by the Defense Advanced
+ Research Projects Agency (DARPA) and Air Force Research Laboratory,
+ Air Force Materiel Command, USAF, under agreement number
+ F30602-01-2-0537.
+
+ *) Add various sanity checks to asn1_get_length() to reject
+ the ASN1 length bytes if they exceed sizeof(long), will appear
+ negative or the content length exceeds the length of the
+ supplied buffer.
+ [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
+
+ *) Assertions for various potential buffer overflows, not known to
+ happen in practice.
+ [Ben Laurie (CHATS)]
+
+ *) Various temporary buffers to hold ASCII versions of integers were
+ too small for 64 bit platforms. (CAN-2002-0655)
+ [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
+
+ *) Remote buffer overflow in SSL3 protocol - an attacker could
+ supply an oversized session ID to a client. (CAN-2002-0656)
+ [Ben Laurie (CHATS)]
+
+ *) Remote buffer overflow in SSL2 protocol - an attacker could
+ supply an oversized client master key. (CAN-2002-0656)
+ [Ben Laurie (CHATS)]
+
+ Changes between 0.9.6c and 0.9.6d [9 May 2002]
+
+ *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
+ encoded as NULL) with id-dsa-with-sha1.
+ [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
+
+ *) Check various X509_...() return values in apps/req.c.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
+ an end-of-file condition would erronously be flagged, when the CRLF
+ was just at the end of a processed block. The bug was discovered when
+ processing data through a buffering memory BIO handing the data to a
+ BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
+ <ptsekov@syntrex.com> and Nedelcho Stanev.
+ [Lutz Jaenicke]
+
+ *) Implement a countermeasure against a vulnerability recently found
+ in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
+ before application data chunks to avoid the use of known IVs
+ with data potentially chosen by the attacker.
+ [Bodo Moeller]
+
+ *) Fix length checks in ssl3_get_client_hello().
+ [Bodo Moeller]
+
+ *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
+ to prevent ssl3_read_internal() from incorrectly assuming that
+ ssl3_read_bytes() found application data while handshake
+ processing was enabled when in fact s->s3->in_read_app_data was
+ merely automatically cleared during the initial handshake.
+ [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
+
+ *) Fix object definitions for Private and Enterprise: they were not
+ recognized in their shortname (=lowercase) representation. Extend
+ obj_dat.pl to issue an error when using undefined keywords instead
+ of silently ignoring the problem (Svenning Sorensen
+ <sss@sss.dnsalias.net>).
+ [Lutz Jaenicke]
+
+ *) Fix DH_generate_parameters() so that it works for 'non-standard'
+ generators, i.e. generators other than 2 and 5. (Previously, the
+ code did not properly initialise the 'add' and 'rem' values to
+ BN_generate_prime().)
+
+ In the new general case, we do not insist that 'generator' is
+ actually a primitive root: This requirement is rather pointless;
+ a generator of the order-q subgroup is just as good, if not
+ better.
+ [Bodo Moeller]
+
+ *) Map new X509 verification errors to alerts. Discovered and submitted by
+ Tom Wu <tom@arcot.com>.
+ [Lutz Jaenicke]
+
+ *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
+ returning non-zero before the data has been completely received
+ when using non-blocking I/O.
+ [Bodo Moeller; problem pointed out by John Hughes]
+
+ *) Some of the ciphers missed the strength entry (SSL_LOW etc).
+ [Ben Laurie, Lutz Jaenicke]
+
+ *) Fix bug in SSL_clear(): bad sessions were not removed (found by
+ Yoram Zahavi <YoramZ@gilian.com>).
+ [Lutz Jaenicke]
*) Add information about CygWin 1.3 and on, and preserve proper
configuration for the versions before that.
value is 0.
[Richard Levitte]
+ *) [In 0.9.6c-engine release:]
+ Fix a crashbug and a logic bug in hwcrhk_load_pubkey()
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
*) Add the configuration target linux-s390x.
[Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
projects / openssl.git / blobdiff