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45 commits

Author SHA1 Message Date
Dr. Stephen Henson
de2422affb Fix CVE-2014-0221 
Unnecessary recursion when receiving a DTLS hello request can be used to
crash a DTLS client. Fixed by handling DTLS hello request without recursion.

Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
 2014-06-03 16:30:23 +01:00
Dr. Stephen Henson
82ba68c42d Fix for CVE-2014-0195 
A buffer overrun attack can be triggered by sending invalid DTLS fragments
to an OpenSSL DTLS client or server. This is potentially exploitable to
run arbitrary code on a vulnerable client or server.

Fixed by adding consistency check for DTLS fragments.

Thanks to Jüri Aedla for reporting this issue.
 2014-06-03 16:30:23 +01:00
Sami Farin
bea1d1cbd8 Typo: set i to -1 before goto. 
PR#3302
(cherry picked from commit 9717f01951f976f76dd40a38d9fc7307057fa4c4)
 2014-06-02 12:28:50 +01:00
Michael Tuexen
05689a132c Avoid unnecessary fragmentation. 
(cherry picked from commit 80ccc66d7e)
 2013-03-18 14:33:27 +00:00
Dr. Stephen Henson
725713f74a PR: 2755 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Reduce MTU after failed transmissions. [0.9.8 version of patch]
 2012-03-07 15:14:16 +00:00
Dr. Stephen Henson
6720779c7e revert PR#2755: it breaks compilation 2012-03-06 18:25:33 +00:00
Dr. Stephen Henson
b2a2c6af2a PR: 2755 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Reduce MTU after failed transmissions.
 2012-03-06 13:45:47 +00:00
Dr. Stephen Henson
8794569a08 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 13:06:26 +00:00
Dr. Stephen Henson
fc4015329f PR: 2602 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS bug which prevents manual MTU setting
 2011-09-23 13:35:32 +00:00
Dr. Stephen Henson
7116a41129 PR: 2462 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS Retransmission Buffer Bug
 2011-04-03 17:15:23 +00:00
Dr. Stephen Henson
7143acab25 PR: 2458 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Don't change state when answering DTLS ClientHello.
 2011-04-03 16:26:33 +00:00
Dr. Stephen Henson
11d4086d8e PR: 2457 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS fragment reassembly bug.
 2011-04-03 15:49:26 +00:00
Dr. Stephen Henson
d24f1cbf35 PR: 2230 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix bug in bitmask macros and stop warnings.
 2010-05-03 13:01:59 +00:00
Dr. Stephen Henson
82687bb4c3 PR: 2230 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fixed various DTLS fragment reassembly bugs patch for 0.9.8.
 2010-04-14 13:26:50 +00:00
Dr. Stephen Henson
2eb8e5e62a fix signed/unsigned comparison warnings 2010-04-14 00:41:25 +00:00
Dr. Stephen Henson
c713a4c04d PR: 2230 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix various DTLS fragment reassembly bugs.
 2010-04-14 00:17:12 +00:00
Dr. Stephen Henson
ee91323f52 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 23:16:35 +00:00
Dr. Stephen Henson
e8387db0c4 Fix VC++ warning (change had already been made to other branches). 2010-01-26 13:24:08 +00:00
Dr. Stephen Henson
82e448b92b 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 17:40:46 +00:00
Dr. Stephen Henson
d7d4325655 PR: 2089 
Submitted by: David Woodhouse <dwmw2@infradead.org>
Approved by: steve@openssl.org

Use EVP_MD_size() in OpenSSL 0.9.8.
 2009-11-04 12:58:54 +00:00
Dr. Stephen Henson
9f81ffe433 PR: 2089 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS Fragment size bug fix.
 2009-11-02 13:36:56 +00:00
Dr. Stephen Henson
d402f6b66f PR: 2054 
Submitted by: Julia Lawall <julia@diku.dk>
Approved by: steve@openssl.org

Correct BIO_ctrl error handling
 2009-10-01 00:03:59 +00:00
Dr. Stephen Henson
fbc4a24633 PR: 1997 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS timeout handling fix.
 2009-08-13 15:14:32 +00:00
Dr. Stephen Henson
17620eec4c Fix error codes. 2009-08-06 16:23:17 +00:00
Dr. Stephen Henson
ab8fe43fa2 PR: 1942 
Submitted by: David Woodhouse <dwmw2@infradead.org>
Approved by: steve@openssl.org

Replace ad-hoc chain builder with X509_verify_cert().
 2009-06-28 16:23:05 +00:00
Dr. Stephen Henson
1ddf691244 Update from 1.0.0-stable. 2009-06-05 15:05:10 +00:00
Dr. Stephen Henson
f86d65110d 0.9.8 version of PR#1931 fix. 2009-05-18 16:22:43 +00:00
Dr. Stephen Henson
4730ea8a38 Fix from 1.0.0-stable branch. 2009-05-18 16:12:56 +00:00
Dr. Stephen Henson
e12ceb2c92 Reverted fix to PR#1931.. breaks compilation in 0.9.8. 2009-05-17 16:28:13 +00:00
Dr. Stephen Henson
76428da729 Fix from 1.0.0-stable. 2009-05-16 16:23:35 +00:00
Dr. Stephen Henson
efa59b8d59 Updates from 1.0.0-stable. 2009-05-16 15:51:59 +00:00
Dr. Stephen Henson
26b82246b1 Update from 1.0.0-stable. 2009-05-13 11:52:29 +00:00
Dr. Stephen Henson
4e319926d7 PR: 1828 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Fix DTLS retransmission bug.
 2009-04-02 22:32:16 +00:00
Dr. Stephen Henson
a9427c2536 PR: 1838 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS fragment bug.
 2009-04-02 22:12:13 +00:00
Andy Polyakov
a9c23ea079 Don't let DTLS ChangeCipherSpec increment handshake sequence number. From 
HEAD with a twist: server interoperates with non-compliant client.
PR: 1587
 2007-10-17 21:17:49 +00:00
Dr. Stephen Henson
43490dfb89 Avoid shadow and signed/unsigned warnings. 2007-10-12 00:29:06 +00:00
Ben Laurie
bb99ce5f80 make update, and more DTLS stuff. 2007-10-11 14:36:59 +00:00
Andy Polyakov
0a89c575de Make ChangeCipherSpec compliant with DTLS RFC4347. From HEAD with a twist: 
server interoperates with non-compliant pre-0.9.8f.
 2007-09-30 21:20:59 +00:00
Dr. Stephen Henson
761f3b403b Fix more unused value warnings. 2007-07-04 13:09:27 +00:00
Nils Larsch
7f622f6c04 fix warnings when building openssl with (gcc 3.3.1): 
-Wmissing-prototypes -Wcomment -Wformat -Wimplicit -Wmain -Wmultichar
-Wswitch -Wshadow -Wtrigraphs -Werror -Wchar-subscripts
-Wstrict-prototypes -Wreturn-type -Wpointer-arith  -W -Wunused
-Wno-unused-parameter -Wuninitialized
 2005-08-28 23:20:52 +00:00
Richard Levitte
e2ac4732cd 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 22:34:28 +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
Dr. Stephen Henson
4e321ffaff Fixes for signed/unsigned warnings and shadows. 2005-04-26 17:43:53 +00:00
Ben Laurie
36d16f8ee0 Add DTLS support. 2005-04-26 16:02:40 +00:00