Commit graph

235 commits

Author SHA1 Message Date
Matt Caswell
4c21e004a3 Remove instances in libssl of the constant 28 (for size of IPv4 header + UDP)
and instead use the value provided by the underlying BIO. Also provide some
new DTLS_CTRLs so that the library user can set the mtu without needing to
know this constant. These new DTLS_CTRLs provide the capability to set the
link level mtu to be used (i.e. including this IP/UDP overhead). The previous
DTLS_CTRLs required the library user to subtract this overhead first.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 59669b6abf)

Conflicts:
	ssl/d1_both.c
	ssl/ssl_lib.c
2014-12-03 09:35:23 +00:00
Bodo Moeller
08931f1cd6 When processing ClientHello.cipher_suites, don't ignore cipher suites
listed after TLS_FALLBACK_SCSV.

RT: 3575
Reviewed-by: Emilia Kasper <emilia@openssl.org>
2014-10-21 22:32:30 +02:00
Bodo Moeller
6bfe55380a Support TLS_FALLBACK_SCSV.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2014-10-15 04:05:42 +02:00
Dr. Stephen Henson
4e05aedbca Preserve digests for SNI.
SSL_set_SSL_CTX is normally called for SNI after ClientHello has
received and the digest to use for each certificate has been decided.
The original ssl->cert contains the negotiated digests and is now
copied to the new ssl->cert.

PR: 3560
Reviewed-by: Tim Hudson <tjh@openssl.org>
2014-10-10 23:21:14 +01:00
Dr. Stephen Henson
83764a989d Fix SRP ciphersuite DoS vulnerability.
If a client attempted to use an SRP ciphersuite and it had not been
set up correctly it would crash with a null pointer read. A malicious
server could exploit this in a DoS attack.

Thanks to Joonas Kuorilehto and Riku Hietamäki from Codenomicon
for reporting this issue.

CVE-2014-5139
Reviewed-by: Tim Hudson <tjh@openssl.org>
2014-08-06 20:27:51 +01:00
Kurt Roeckx
69526a354d Check sk_SSL_CIPHER_num() after assigning sk. 2014-05-12 23:01:06 +01:00
Günther Noack
15c1ac03c8 Avoid out-of-bounds write in SSL_get_shared_ciphers
PR: 3317
2014-05-11 23:57:14 +01:00
Dr. Stephen Henson
9c95ff968a Disable compression for DTLS.
The only standard compression method is stateful and is incompatible with
DTLS.
(cherry picked from commit e14b8410ca)
2013-03-19 13:47:29 +00:00
Dr. Stephen Henson
147dbb2fe3 Fix for SSL_get_certificate
Now we set the current certificate to the one used by a server
there is no need to call ssl_get_server_send_cert which will
fail if we haven't sent a certificate yet.
2013-02-11 18:24:03 +00:00
Andy Polyakov
0898147090 ssl/*: fix linking errors with no-srtp. 2013-02-09 19:52:07 +01:00
Dr. Stephen Henson
35d732fc2e Fix error codes. 2013-02-04 21:13:18 +00:00
Dr. Stephen Henson
353e845120 Minor enhancement to PR#2836 fix. Instead of modifying SSL_get_certificate
change the current certificate (in s->cert->key) to the one used and then
SSL_get_certificate and SSL_get_privatekey will automatically work.

Note for 1.0.1 and earlier also includes backport of the function
ssl_get_server_send_pkey.
2012-09-21 14:01:59 +00:00
Ben Laurie
70d91d60bc Call OCSP Stapling callback after ciphersuite has been chosen, so the
right response is stapled. Also change SSL_get_certificate() so it
returns the certificate actually sent.

See http://rt.openssl.org/Ticket/Display.html?id=2836.
2012-09-17 14:39:38 +00:00
Ben Laurie
af454b5bb0 Reduce version skew. 2012-06-08 09:18:47 +00:00
Bodo Möller
409d2a1b71 Fix for builds without DTLS support.
Submitted by: Brian Carlstrom
2012-01-05 10:22:39 +00:00
Ben Laurie
e87afb1518 SSL export fixes (from Adam Langley). 2011-12-13 14:25:11 +00:00
Ben Laurie
b1d7429186 Add TLS exporter. 2011-11-15 23:51:22 +00:00
Ben Laurie
060a38a2c0 Add DTLS-SRTP. 2011-11-15 23:02:16 +00:00
Ben Laurie
68b33cc5c7 Add Next Protocol Negotiation. 2011-11-13 21:55:42 +00:00
Dr. Stephen Henson
6bd173fced Don't disable TLS v1.2 by default any more. 2011-10-09 23:28:25 +00:00
Dr. Stephen Henson
b08b158b44 use client version when eliminating TLS v1.2 ciphersuites in client hello 2011-10-07 15:07:36 +00:00
Dr. Stephen Henson
928bd9a149 fix signed/unsigned warning 2011-09-26 17:04:41 +00:00
Dr. Stephen Henson
56f5ab43c2 PR: 2602
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS bug which prevents manual MTU setting
2011-09-23 13:35:05 +00:00
Bodo Möller
3c3f025923 Fix session handling. 2011-09-05 13:36:55 +00:00
Dr. Stephen Henson
cf199fec52 Remove hard coded ecdsaWithSHA1 hack in ssl routines and check for RSA
using OBJ xref utilities instead of string comparison with OID name.

This removes the arbitrary restriction on using SHA1 only with some ECC
ciphersuites.
2011-08-14 13:47:30 +00:00
Dr. Stephen Henson
c8c6e9ecd9 Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support and
prohibit use of these ciphersuites for TLS < 1.2
2011-07-25 21:45:17 +00:00
Dr. Stephen Henson
277f8a34f4 use TLS1_get_version macro to check version so TLS v1.2 changes don't interfere with DTLS 2011-05-25 11:43:17 +00:00
Dr. Stephen Henson
7043fa702f add FIPS support to ssl: doesn't do anything on this branch yet as there is no FIPS compilation support 2011-05-19 18:22:16 +00:00
Dr. Stephen Henson
9472baae0d Backport TLS v1.2 support from HEAD.
This includes TLS v1.2 server and client support but at present
client certificate support is not implemented.
2011-05-11 13:37:52 +00:00
Dr. Stephen Henson
74096890ba Initial "opaque SSL" framework. If an application defines OPENSSL_NO_SSL_INTERN
all ssl related structures are opaque and internals cannot be directly
accessed. Many applications will need some modification to support this and
most likely some additional functions added to OpenSSL.

The advantage of this option is that any application supporting it will still
be binary compatible if SSL structures change.

(backport from HEAD).
2011-05-11 12:56:38 +00:00
Ben Laurie
a149b2466e Add SRP. 2011-03-16 11:26:40 +00:00
Dr. Stephen Henson
a25c98ac73 remove duplicate statement 2010-11-18 17:33:44 +00:00
Dr. Stephen Henson
2d1e9ce753 oops, reinstate TLSv1 string 2010-11-17 18:16:57 +00:00
Dr. Stephen Henson
36778eb231 PR: 1833
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix other cases not covered by original patch. (correct patch this time!)
2010-08-27 12:12:07 +00:00
Dr. Stephen Henson
c6dd154b3e oops, revert previous patch 2010-08-27 12:10:12 +00:00
Dr. Stephen Henson
35cae95032 PR: 1833
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix other cases not covered by original patch.
2010-08-27 11:57:42 +00:00
Dr. Stephen Henson
48ae85b6ff PR: 1833
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Support for abbreviated handshakes when renegotiating.
2010-08-26 14:22:40 +00:00
Dr. Stephen Henson
b4b15f68c0 Backport TLS v1.1 support from HEAD, ssl/ changes 2010-06-27 14:22:11 +00:00
Dr. Stephen Henson
e97359435e Fix warnings (From HEAD, original patch by Ben). 2010-06-15 17:25:15 +00:00
Dr. Stephen Henson
8321bab39c OR default SSL_OP_LEGACY_SERVER_CONNECT so existing options are preserved 2010-02-17 19:43:46 +00:00
Dr. Stephen Henson
73ff97ad76 Simplify RI+SCSV logic:
1. Send SCSV is not renegotiating, never empty RI.
2. Send RI if renegotiating.
2010-01-07 19:05:03 +00:00
Dr. Stephen Henson
eb17330837 Updates to conform with draft-ietf-tls-renegotiation-03.txt:
1. Add provisional SCSV value.
2. Don't send SCSV and RI at same time.
3. Fatal error is SCSV received when renegotiating.
2010-01-06 17:37:38 +00:00
Dr. Stephen Henson
986093affa Typo 2009-12-27 23:03:25 +00:00
Dr. Stephen Henson
f88e0acb0e Update RI to match latest spec.
MCSV is now called SCSV.

Don't send SCSV if renegotiating.

Also note if RI is empty in debug messages.
2009-12-27 22:59:09 +00:00
Dr. Stephen Henson
675564835c New option to enable/disable connection to unpatched servers 2009-12-16 20:28:30 +00:00
Dr. Stephen Henson
b41a614686 Check s3 is not NULL 2009-12-09 14:53:51 +00:00
Dr. Stephen Henson
52a08e90d1 Add ctrls to clear options and mode.
Change RI ctrl so it doesn't clash.
2009-12-09 13:25:38 +00:00
Dr. Stephen Henson
b52a2738d4 Add ctrl and macro so we can determine if peer support secure renegotiation. 2009-12-08 13:42:32 +00:00
Dr. Stephen Henson
10f99d7b77 Add support for magic cipher suite value (MCSV). Make secure renegotiation
work in SSLv3: initial handshake has no extensions but includes MCSV, if
server indicates RI support then renegotiation handshakes include RI.

NB: current MCSV value is bogus for testing only, will be updated when we
have an official value.

Change mismatch alerts to handshake_failure as required by spec.

Also have some debugging fprintfs so we can clearly see what is going on
if OPENSSL_RI_DEBUG is set.
2009-12-08 13:15:12 +00:00
Dr. Stephen Henson
cc6688d796 PR: 2073
Submitted by: Tomas Mraz <tmraz@redhat.com>
Approved by: steve@openssl.org

Don't access freed SSL_CTX in SSL_free().
2009-10-16 13:41:52 +00:00