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52 Commits

Author SHA1 Message Date
Dr. Stephen Henson 7e840163c0 Add heartbeat extension bounds check. 
A missing bounds check in the handling of the TLS heartbeat extension
can be used to reveal up to 64k of memory to a connected client or
server.

Thanks for Neel Mehta of Google Security for discovering this bug and to
Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
preparing the fix (CVE-2014-0160)
(cherry picked from commit 96db9023b8)
 2014-04-07 19:25:34 +01:00
Dr. Stephen Henson 80b6d97585 Fix DTLS retransmission from previous session. 
For DTLS we might need to retransmit messages from the previous session
so keep a copy of write context in DTLS retransmission buffers instead
of replacing it after sending CCS. CVE-2013-6450.
(cherry picked from commit 34628967f1)
 2013-12-20 23:25:41 +00:00
Dr. Stephen Henson b60b9e7afe Enable TLS 1.2 ciphers in DTLS 1.2. 
Port TLS 1.2 GCM code to DTLS. Enable use of TLS 1.2 only ciphers when in
DTLS 1.2 mode too.
(cherry picked from commit 4221c0dd30)
 2013-09-18 13:46:02 +01:00
Dr. Stephen Henson 68039af3e7 Remove versions test from dtls1_buffer_message 
Since this is always called from DTLS code it is safe to assume the header
length should be the DTLS value. This avoids the need to check the version
number and should work with any version of DTLS (not just 1.0).
(cherry picked from commit 9cf0f18754)
 2013-09-18 13:46:02 +01:00
Dr. Stephen Henson 741c9959f6 DTLS revision. 
Revise DTLS code. There was a *lot* of code duplication in the
DTLS code that generates records. This makes it harder to maintain and
sometimes a TLS update is omitted by accident from the DTLS code.

Specifically almost all of the record generation functions have code like
this:

some_pointer = buffer + HANDSHAKE_HEADER_LENGTH;
... Record creation stuff ...
set_handshake_header(ssl, SSL_MT_SOMETHING, message_len);

...

write_handshake_message(ssl);

Where the "Record creation stuff" is identical between SSL/TLS and DTLS or
in some cases has very minor differences.

By adding a few fields to SSL3_ENC to include the header length, some flags
and function pointers for handshake header setting and handshake writing the
code can cope with both cases.

(cherry picked from commit 173e72e64c)
 2013-09-18 13:46:02 +01:00
Michael Tuexen 3f84d34c37 Avoid unnecessary fragmentation. 
(cherry picked from commit 80ccc66d7e)
 2013-03-18 14:32:59 +00:00
Dr. Stephen Henson 7e65b21a24 Backport: Revise ssl code to use CERT_PKEY structure when outputting a certificate chain (from HEAD) 2012-04-06 12:00:24 +00:00
Dr. Stephen Henson 736d69750d Backport: tidy/enhance certificate chain output code (from HEAD) 2012-04-06 11:58:17 +00:00
Dr. Stephen Henson 25bfdca16a PR: 2755 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Reduce MTU after failed transmissions.
 2012-03-06 13:47:27 +00:00
Dr. Stephen Henson a54ce007e6 PR: 2739 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix padding bugs in Heartbeat support.
 2012-02-27 16:38:10 +00:00
Dr. Stephen Henson bd6941cfaa PR: 2658 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Support for TLS/DTLS heartbeats.
 2011-12-31 23:00:36 +00:00
Dr. Stephen Henson e065e6cda2 PR: 2535 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Add SCTP support for DTLS (RFC 6083).
 2011-12-25 14:45:40 +00:00
Dr. Stephen Henson 5372f5f989 PR: 2628 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Send alert instead of assertion failure for incorrectly formatted DTLS
fragments.
 2011-10-27 13:06:43 +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
Dr. Stephen Henson 2ab42de1ec PR: 2462 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS Retransmission Buffer Bug
 2011-04-03 17:14:48 +00:00
Dr. Stephen Henson ac2024ccbf PR: 2458 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Don't change state when answering DTLS ClientHello.
 2011-04-03 16:25:54 +00:00
Dr. Stephen Henson 93164a7d64 PR: 2457 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS fragment reassembly bug.
 2011-04-03 15:48:32 +00:00
Dr. Stephen Henson 8c1e7de6cb PR: 2230 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix bug in bitmask macros and stop warnings.
 2010-05-03 13:01:50 +00:00
Dr. Stephen Henson 9f827ded1c fix signed/unsigned comparison warnings 2010-04-14 00:41:01 +00:00
Dr. Stephen Henson 1507f3abba PR: 2230 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix various DTLS fragment reassembly bugs.
 2010-04-14 00:17:29 +00:00
Dr. Stephen Henson 7b52778eff PR: 1731 and maybe 2197 
Clear error queue in a few places in SSL code where errors are expected
so they don't stay in the queue.
 2010-03-24 23:16:49 +00:00
Dr. Stephen Henson d5b8c46499 PR: 2115 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Add Renegotiation extension to DTLS, fix DTLS ClientHello processing bug.
 2009-12-01 17:41:42 +00:00
Dr. Stephen Henson 23b97c6bb5 PR: 2089 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS Fragment size bug fix.
 2009-11-02 13:37:17 +00:00
Dr. Stephen Henson 29c2fd46d2 PR: 2054 
Submitted by: Julia Lawall <julia@diku.dk>
Approved by: steve@openssl.org

Correct BIO_ctrl error handling
 2009-10-01 00:03:50 +00:00
Dr. Stephen Henson a4bade7aac PR: 1997 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS timeout handling fix.
 2009-08-12 13:21:26 +00:00
Dr. Stephen Henson 5135d6b985 Fix error codes and indentation. 2009-07-15 11:32:58 +00:00
Dr. Stephen Henson dbb834ffeb Update from 0.9.8-stable. 2009-06-28 16:24:11 +00:00
Dr. Stephen Henson 7074f1df07 Stop gcc bracket warning. 2009-06-05 14:57:10 +00:00
Dr. Stephen Henson 4e63da0669 PR: 1950 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve@openssl.org

DTLS fragment retransmission bug.
 2009-06-05 14:46:49 +00:00
Dr. Stephen Henson abda7c1147 PR: 1931 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Fix fragment handling memory leak.
 2009-05-16 16:22:11 +00:00
Dr. Stephen Henson d6584eba8c PR: 1922 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS Timer bug fix.
 2009-05-15 22:58:13 +00:00
Dr. Stephen Henson 561cbe5678 PR: 1923 
Submitted by: Daniel Mentz <daniel.m@sent.com>, Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Don't access freed data structure.
 2009-05-13 11:51:30 +00:00
Dr. Stephen Henson a543ea44bc Fix WIN32 warning. 2009-04-22 12:17:02 +00:00
Dr. Stephen Henson b452f43322 PR: 1751 
Submitted by: David Woodhouse <dwmw2@infradead.org>
Approved by: steve@openssl.org

Compatibility patches for Cisco VPN client DTLS.
 2009-04-19 18:03:13 +00:00
Dr. Stephen Henson c900a78c99 PR: 1828 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Updated DTLS Rentransmission bug patch.
 2009-04-15 14:49:36 +00:00
Dr. Stephen Henson 46ffb2dc97 PR #1828 reverted: state save/restore incompatible with 1.0.0-stable. 2009-04-14 15:29:34 +00:00
Dr. Stephen Henson 9fcbefebdb PR: 1828 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Update from 0.9.8-stable.
 2009-04-14 14:19:46 +00:00
Dr. Stephen Henson 017d2a887f PR: 1838 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Updated patch from 0.9.8-stable.
 2009-04-14 14:18:16 +00:00
Andy Polyakov 659f7f3168 Don't let DTLS ChangeCipherSpec increment handshake sequence number. 
PR: 1587
 2007-10-17 21:15:48 +00:00
Andy Polyakov e979c039f9 Fix warnings in d1_both.c [from 0.9.8-stable]. 2007-10-13 11:00:52 +00:00
Andy Polyakov 90acf770b5 DTLS fixes from 0.9.8-stable. 2007-10-13 10:57:02 +00:00
Andy Polyakov 89c333e3e5 Make ChangeCipherSpec compliant with DTLS RFC4347. 2007-09-30 21:19:30 +00:00
Andy Polyakov 54ef01b54b Fix indentation in d1_both.c. 2007-09-19 16:38:15 +00:00
Dr. Stephen Henson 81025661a9 Update ssl code to support digests other than MD5+SHA1 in handshake. 
Submitted by: Victor B. Wagner <vitus@cryptocom.ru>
 2007-08-31 12:42:53 +00:00
Dr. Stephen Henson 710069c19e Fix warnings. 2007-08-12 17:44:32 +00:00
Geoff Thorpe f920c5b590 Fix signed/unsigned warnings. 2005-07-26 04:25:05 +00:00
Andy Polyakov dffdb56b7f "Liberate" dtls from BN dependency. Fix bug in replay/update. 2005-06-07 22:21:14 +00:00
Richard Levitte 188b05792f pqueue and dtls uses 64-bit values. Unfortunately, OpenSSL doesn't 
have a uniform representation for those over all architectures, so a
little bit of hackery is needed.

Contributed by nagendra modadugu <nagendra@cs.stanford.edu>
 2005-05-30 22:34:37 +00:00
Dr. Stephen Henson 6c61726b2a Lots of Win32 fixes for DTLS. 
1. "unsigned long long" isn't portable changed: to BN_ULLONG.
2. The LL prefix isn't allowed in VC++ but it isn't needed where it is used.
2. Avoid lots of compiler warnings about signed/unsigned mismatches.
3. Include new library directory pqueue in mk1mf build system.
4. Update symbols.
 2005-04-27 16:27:14 +00:00
Bodo Möller beb056b303 fix SSLerr stuff for DTLS1 code; 
move some functions from exported header <openssl/dtl1.h> into "ssl_locl.h";
fix silly indentation (a TAB is *not* always 4 spaces)
 2005-04-26 18:08:00 +00:00