create an HMAC

Inspired by BoringSSL commit 2fe7f2d0d9a6fcc75b4e594eeec306cc55acd594

Reviewed-by: Richard Levitte <levitte@openssl.org>

Conflicts:
	crypto/hmac/hmac.c

Reviewed-by: Richard Levitte <levitte@openssl.org>

Ensure all calls to RAND_bytes and RAND_pseudo_bytes have their return
value checked correctly

Reviewed-by: Richard Levitte <levitte@openssl.org>

In ssl3_send_new_session_ticket the message to be sent is constructed. We
skip adding the length of the session ticket initially, then call
ssl_set_handshake_header, and finally go back and add in the length of the
ticket. Unfortunately, in DTLS, ssl_set_handshake_header also has the side
effect of buffering the message for subsequent retransmission if required.
By adding the ticket length after the call to ssl_set_handshake_header the
message that is buffered is incomplete, causing an invalid message to be
sent on retransmission.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 4f9fab6b)

Conflicts:
	ssl/s3_srvr.c

In DTLS, immediately prior to epoch change, the write_sequence is supposed
to be stored in s->d1->last_write_sequence. The write_sequence is then reset
back to 00000000. In the event of retransmits of records from the previous
epoch, the last_write_sequence is restored. This commit fixes a bug in
DTLS1.2 where the write_sequence was being reset before last_write_sequence
was saved, and therefore retransmits are sent with incorrect sequence
numbers.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit d5d0a1cb)

The certificate already contains the DH parameters in that case.
ssl3_send_server_key_exchange() would fail in that case anyway.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 93f1c136)

OCSP verification changes mean the OCSP tests now need -trusted_first

Reviewed-by: Matt Caswell <matt@openssl.org>

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 7b68c30d)

If a set of certificates is supplied to OCSP_basic_verify use those in
addition to any present in the OCSP response as untrusted CAs when
verifying a certificate chain.

PR#3668

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 4ca5efc2)

Fix compilation failure when SCTP is compiled due to incorrect define.

Reported-by: Conrad Kostecki <ck+gentoobugzilla@bl4ckb0x.de>
URL: https://bugs.gentoo.org/543828



RT#3758
Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>

(cherry picked from commit 7c82e339)

Don't check that the curve appears in the list of acceptable curves for the
peer, if they didn't send us such a list (RFC 4492 does not require that the
extension be sent).

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit b79d2410)

In cooperation with Ard Biesheuvel (Linaro) and Sami Tolvanen (Google).

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 2ecd32a1)

Fix builds config'd with no-ec and no-ec2m. Technically this combination is
redundant - but the fix is straight forward. Fix from OpenWrt.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>

Updated test/testssl script to include the new DTLS capability in ssltest.

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 3c381e54)

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 98b8cdd3)

Conflicts:
	ssl/ssltest.c

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 504e643e)

Conflicts:
	ssl/ssl_lib.c

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>

Fix some unsigned/signed warnings introduced as part of the fix
for CVE-2015-0293

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

Reported by the LibreSSL project as a follow on to CVE-2015-0209

Reviewed-by: Richard Levitte <levitte@openssl.org>

Update the NEWS file with the latest entries from CHANGES ready for the
release.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Update CHANGES file with all the latest fixes ready for the release.

Reviewed-by: Richard Levitte <levitte@openssl.org>

There was a discrepancy between the 1.0.2 version of NEWS and the 1.0.1
version. This fixes it.

Reviewed-by: Richard Levitte <levitte@openssl.org>

There were some discrepancies in the CHANGES file between the 1.0.1 version
and 1.0.2. This corrects it.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Remove entries from CHANGES and NEWS from letter releases that occur *after*
the next point release. Without this we get duplicate entries for the same
issue appearing multiple times.

Reviewed-by: Richard Levitte <levitte@openssl.org>

This assert is reachable for servers that support SSLv2 and export ciphers.
Therefore, such servers can be DoSed by sending a specially crafted
SSLv2 CLIENT-MASTER-KEY.

Also fix s2_srvr.c to error out early if the key lengths are malformed.
These lengths are sent unencrypted, so this does not introduce an oracle.

CVE-2015-0293

This issue was discovered by Sean Burford (Google) and Emilia Käsper of
the OpenSSL development team.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>

In PKCS#7, the ASN.1 content component is optional.
This typically applies to inner content (detached signatures),
however we must also handle unexpected missing outer content
correctly.

This patch only addresses functions reachable from parsing,
decryption and verification, and functions otherwise associated
with reading potentially untrusted data.

Correcting all low-level API calls requires further work.

CVE-2015-0289

Thanks to Michal Zalewski (Google) for reporting this issue.

Reviewed-by: Steve Henson <steve@openssl.org>

Fix segmentation violation when ASN1_TYPE_cmp is passed a boolean type. This
can be triggered during certificate verification so could be a DoS attack
against a client or a server enabling client authentication.

CVE-2015-0286

Reviewed-by: Richard Levitte <levitte@openssl.org>

If client auth is used then a server can seg fault in the event of a DHE
cipher being used and a zero length ClientKeyExchange message being sent
by the client. This could be exploited in a DoS attack.

CVE-2015-1787

Reviewed-by: Richard Levitte <levitte@openssl.org>

If a client renegotiates using an invalid signature algorithms extension
it will crash a server with a NULL pointer dereference.

Thanks to David Ramos of Stanford University for reporting this bug.

CVE-2015-0291

Reviewed-by: Tim Hudson <tjh@openssl.org>

Conflicts:
	ssl/t1_lib.c

Fix a bug where invalid PSS parameters are not rejected resulting in a
NULL pointer exception. This can be triggered during certificate
verification so could be a DoS attack against a client or a server
enabling client authentication.

Thanks to Brian Carpenter for reporting this issues.

CVE-2015-0208

Reviewed-by: Tim Hudson <tjh@openssl.org>

CVE-2015-0287

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>

The DTLSv1_listen function is intended to be stateless and processes
the initial ClientHello from many peers. It is common for user code to
loop over the call to DTLSv1_listen until a valid ClientHello is received
with an associated cookie. A defect in the implementation of DTLSv1_listen
means that state is preserved in the SSL object from one invokation to the
next that can lead to a segmentation fault. Erorrs processing the initial
ClientHello can trigger this scenario. An example of such an error could
be that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only
server.

CVE-2015-0207

Reviewed-by: Richard Levitte <levitte@openssl.org>

OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This
feature only applies on 64 bit x86 architecture platforms that support AES
NI instructions. A defect in the implementation of "multiblock" can cause
OpenSSL's internal write buffer to become incorrectly set to NULL when
using non-blocking IO. Typically, when the user application is using a
socket BIO for writing, this will only result in a failed connection.
However if some other BIO is used then it is likely that a segmentation
fault will be triggered, thus enabling a potential DoS attack.

CVE-2015-0290

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>

Add support for ServerInfo SSL_CONF option and update documentation. This
was wrongly omitted from the 1.0.2 release.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Some miscellaneous removal of dead code from apps. Also fix an issue with
error handling with pkcs7.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 11abf922)

Some miscellaneous removal of dead code from lib crypto.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit b7573c59)

Passing a negative value for the "-time" option to s_time results in a seg
fault. This commit fixes it so that time has to be greater than 0.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit dfef52f6)

The function tls1_PRF counts the number of digests in use and partitions
security evenly between them. There always needs to be at least one digest
in use, otherwise this is an internal error. Add a sanity check for this.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 668f6f08)