Commit graph

81 commits

Author SHA1 Message Date
Matt Caswell
56d9134675 Ensure all EVP calls have their returns checked where appropriate
There are lots of calls to EVP functions from within libssl There were
various places where we should probably check the return value but don't.
This adds these checks.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2015-11-20 15:47:44 +00:00
Matt Caswell
35fafc4dbc Cleanse buffers
Cleanse various intermediate buffers used by the PRF (backported version
from master).

Reviewed-by: Richard Levitte <levitte@openssl.org>
2015-03-11 10:45:23 +00:00
Matt Caswell
83975c80bb Re-align some comments after running the reformat script.
This should be a one off operation (subsequent invokation of the
script should not move them)

This commit is for the 1.0.2 changes

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:31:48 +00:00
Matt Caswell
ae5c8664e5 Run util/openssl-format-source -v -c .
Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:31:38 +00:00
Matt Caswell
bc2d623c0e Fix source where indent will not be able to cope
Conflicts:
	apps/ciphers.c
	ssl/s3_pkt.c

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:24:04 +00:00
Matt Caswell
c695ebe2a0 Additional comment changes for reformat of 1.0.2
Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:23:58 +00:00
Matt Caswell
ca88bd4112 Add checks to the return value of EVP_Cipher to prevent silent encryption failure.
PR#1767

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit fe78f08d15)
2014-11-27 21:44:03 +00:00
Bodo Moeller
a46c705214 Support TLS_FALLBACK_SCSV.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2014-10-15 04:04:55 +02:00
Matt Caswell
561ba12463 Fixed incorrect return code handling in ssl3_final_finish_mac.
Based on an original patch by Joel Sing (OpenBSD) who also originally identified the issue.
2014-06-13 15:50:58 +01:00
Matt Caswell
7f133c357b Revert "Fixed incorrect return code handling in ssl3_final_finish_mac"
This reverts commit 728bd41a15.

Missing attribution.
2014-06-13 15:50:28 +01:00
Matt Caswell
728bd41a15 Fixed incorrect return code handling in ssl3_final_finish_mac 2014-06-10 23:32:27 +01:00
Andy Polyakov
eeb486a5f4 ssl/*: remove SSL3_RECORD->orig_len to restore binary compatibility.
Kludge alert. This is arranged by passing padding length in unused
bits of SSL3_RECORD->type, so that orig_len can be reconstructed.
(cherry picked from commit 8bfd4c659f)
2013-02-06 13:56:15 +00:00
Ben Laurie
1326a64a33 Update DTLS code to match CBC decoding in TLS.
This change updates the DTLS code to match the constant-time CBC
behaviour in the TLS.
(cherry picked from commit 9f27de170d)
2013-02-06 13:56:13 +00:00
Ben Laurie
e0da2c2ed2 Don't crash when processing a zero-length, TLS >= 1.1 record.
The previous CBC patch was bugged in that there was a path through enc()
in s3_pkt.c/d1_pkt.c which didn't set orig_len. orig_len would be left
at the previous value which could suggest that the packet was a
sufficient length when it wasn't.
(cherry picked from commit 6cb19b7681)
2013-02-06 13:56:13 +00:00
Ben Laurie
fb0a59cc58 Make CBC decoding constant time.
This patch makes the decoding of SSLv3 and TLS CBC records constant
time. Without this, a timing side-channel can be used to build a padding
oracle and mount Vaudenay's attack.

This patch also disables the stitched AESNI+SHA mode pending a similar
fix to that code.

In order to be easy to backport, this change is implemented in ssl/,
rather than as a generic AEAD mode. In the future this should be changed
around so that HMAC isn't in ssl/, but crypto/ as FIPS expects.
(cherry picked from commit e130841bcc)
2013-02-06 13:56:12 +00:00
Dr. Stephen Henson
bc200e691c SSL/TLS record tracing code (backport from HEAD). 2012-12-26 22:40:46 +00:00
Dr. Stephen Henson
4e44bd3650 Clear bytes used for block padding of SSL 3.0 records. (CVE-2011-4576) 2012-01-04 23:13:29 +00:00
Dr. Stephen Henson
2dd9e67874 set FIPS permitted flag before initalising digest 2011-05-31 16:24:06 +00:00
Dr. Stephen Henson
b81fde02aa Add server client certificate support for TLS v1.2 . This is more complex
than client side as we need to keep the handshake record cache frozen when
it contains all the records need to process the certificate verify message.
(backport from HEAD).
2011-05-20 14:58:45 +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
e97359435e Fix warnings (From HEAD, original patch by Ben). 2010-06-15 17:25:15 +00:00
Dr. Stephen Henson
9990cb75c1 PR: 1894
Submitted by: Ger Hobbelt <ger@hobbelt.com>
Approved by: steve@openssl.org

Fix various typos and stuff.
2009-04-16 17:22:51 +00:00
Dr. Stephen Henson
c9a1778134 Fix error codes. 2009-04-05 11:54:34 +00:00
Ben Laurie
0eab41fb78 If we're going to return errors (no matter how stupid), then we should
test for them!
2008-12-29 16:11:58 +00:00
Ben Laurie
85e878f224 Die earlier if hash is NULL. (Coverity IDs 137 & 138). 2008-12-29 11:54:56 +00:00
Ben Laurie
0e941da6fa Die earlier if we have no hash function. 2008-12-29 11:46:44 +00:00
Ben Laurie
6ba71a7173 Handle the unlikely event that BIO_get_mem_data() returns -ve. 2008-12-27 02:00:38 +00:00
Dr. Stephen Henson
8164032a2e Fix warnings: computed value not use, incompatible pointer initialization
and cast from pointer to int of different size (linux-x86_64 and align).
2007-09-07 13:03:25 +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
b948e2c59e Update ssl library to support EVP_PKEY MAC API. Include generic MAC support. 2007-06-04 17:04:40 +00:00
Bodo Möller
52b8dad8ec Reorganize the data used for SSL ciphersuite pattern matching.
This change resolves a number of problems and obviates multiple kludges.
A new feature is that you can now say "AES256" or "AES128" (not just
"AES", which enables both).

In some cases the ciphersuite list generated from a given string is
affected by this change.  I hope this is just in those cases where the
previous behaviour did not make sense.
2007-02-17 06:45:38 +00:00
Nils Larsch
cc684e330b ensure that the EVP_CIPHER_CTX object is initialized
PR: 1490
2007-02-16 20:34:15 +00:00
Nils Larsch
ddac197404 add initial support for RFC 4279 PSK SSL ciphersuites
PR: 1191
Submitted by: Mika Kousa and Pasi Eronen of Nokia Corporation
Reviewed by: Nils Larsch
2006-03-10 23:06:27 +00:00
Bodo Möller
d32f888db1 prepare for additional RFC3546 alerts 2006-01-07 20:33:16 +00:00
Bodo Möller
f7914dbf9a make sure that the unrecognized_name alert actually gets sent
Submitted by: Peter Sylvester
2006-01-07 20:29:50 +00:00
Dr. Stephen Henson
d08b6b44ba Fix compilation without OPENSSL_NO_COMP :-) 2005-10-01 00:40:34 +00:00
Dr. Stephen Henson
09b6c2ef15 Make OPENSSL_NO_COMP compile again. 2005-09-30 23:35:33 +00:00
Ben Laurie
36d16f8ee0 Add DTLS support. 2005-04-26 16:02:40 +00:00
Geoff Thorpe
d8ec0dcf45 Avoid some shadowed variable names.
Submitted by: Nils Larsch
2003-11-04 00:51:32 +00:00
Geoff Thorpe
2754597013 A general spring-cleaning (in autumn) to fix up signed/unsigned warnings.
I have tried to convert 'len' type variable declarations to unsigned as a
means to address these warnings when appropriate, but when in doubt I have
used casts in the comparisons instead. The better solution (that would get
us all lynched by API users) would be to go through and convert all the
function prototypes and structure definitions to use unsigned variables
except when signed is necessary. The proliferation of (signed) "int" for
strictly non-negative uses is unfortunate.
2003-10-29 20:24:15 +00:00
Bodo Möller
ea513641d0 comments 2003-02-12 14:17:41 +00:00
Richard Levitte
4579924b7e Cleanse memory using the new OPENSSL_cleanse() function.
I've covered all the memset()s I felt safe modifying, but may have missed some.
2002-11-28 08:04:36 +00:00
Ben Laurie
54a656ef08 Security fixes brought forward from 0.9.7. 2002-11-13 15:43:43 +00:00
Lutz Jänicke
7b63c0fa8c Reorder inclusion of header files:
des_old.h redefines crypt:
#define crypt(b,s)\
        DES_crypt((b),(s))

This scheme leads to failure, if header files with the OS's true definition
of crypt() are processed _after_ des_old.h was processed. This is e.g. the
case on HP-UX with unistd.h.
As evp.h now again includes des.h (which includes des_old.h), this problem
only came up after this modification.
Solution: move header files (indirectly) including e_os.h before the header
files (indirectly) including evp.h.
Submitted by:
Reviewed by:
PR:
2002-07-10 07:01:54 +00:00
Bodo Möller
d1d0be3cd2 emtpy fragments are not necessary for SSL_eNULL
(but noone uses it anyway)

fix t1_enc.c: use OPENSSL_NO_RC4, not NO_RC4
2002-07-09 08:49:09 +00:00
Bodo Möller
c21506ba02 New option SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS for disabling CBC
vulnerability workaround (included in SSL_OP_ALL).

PR: #90
2002-06-14 12:21:11 +00:00
Bodo Möller
82b0bf0b87 Implement known-IV countermeasure.
Fix length checks in ssl3_get_client_hello().

Use s->s3->in_read_app_data differently to fix ssl3_read_internal().
2002-04-13 22:47:20 +00:00
Bodo Möller
287973746e Fix memory leak. 2001-10-22 13:59:36 +00:00
Dr. Stephen Henson
581f1c8494 Modify EVP cipher behaviour in a similar way
to digests to retain compatibility.
2001-10-17 00:37:12 +00:00