ssl3_setup_buffers or pqueue_insert fail. The former will fail if there is a
malloc failure, whilst the latter will fail if attempting to add a duplicate
record to the queue. This should never happen because duplicate records should
be detected and dropped before any attempt to add them to the queue.
Unfortunately records that arrive that are for the next epoch are not being
recorded correctly, and therefore replays are not being detected.
Additionally, these "should not happen" failures that can occur in
dtls1_buffer_record are not being treated as fatal and therefore an attacker
could exploit this by sending repeated replay records for the next epoch,
eventually causing a DoS through memory exhaustion.

Thanks to Chris Mueller for reporting this issue and providing initial
analysis and a patch. Further analysis and the final patch was performed by
Matt Caswell from the OpenSSL development team.

CVE-2015-0206

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

Fix to prevent use of DH client certificates without sending
certificate verify message.

If we've used a client certificate to generate the premaster secret
ssl3_get_client_key_exchange returns 2 and ssl3_get_cert_verify is
never called.

We can only skip the certificate verify message in
ssl3_get_cert_verify if the client didn't send a certificate.

Thanks to Karthikeyan Bhargavan for reporting this issue.
CVE-2015-0205
Reviewed-by: Matt Caswell <matt@openssl.org>

of the crash due to p being NULL. Steve's fix prevents this situation from
occuring - however this is by no means obvious by looking at the code for
dtls1_get_record. This fix just makes things look a bit more sane.

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

separate reads performed - one for the header and one for the body of the
handshake record.

CVE-2014-3571

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

Reviewed-by: Emilia Kasper <emilia@openssl.org>
(cherry picked from commit e793809ba50c1e90ab592fb640a856168e50f3de)
(with 1.0.1-specific addendum)

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 4a4d4158)

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit e464403d)

Reviewed-by: Rich Salz <rsalz@openssl.org>

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 4138e388)

context was also inherited (matches that of the existing SSL_CTX).

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit ac8e9cbe)

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit cb62ab4b)

Fix memory leak by freeing up saved_message.data if it is not NULL.

PR#3489
Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>

(cherry picked from commit 41cd41c4)

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit b691154e)

OpenSSL clients would tolerate temporary RSA keys in non-export
ciphersuites. It also had an option SSL_OP_EPHEMERAL_RSA which
enabled this server side. Remove both options as they are a
protocol violation.

Thanks to Karthikeyan Bhargavan for reporting this issue.
(CVE-2015-0204)
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>

(cherry picked from commit 4b4c1fcc)

Conflicts:
	doc/ssl/SSL_CTX_set_options.pod

Fix bug where an OpenSSL client would accept a handshake using an
ephemeral ECDH ciphersuites with the server key exchange message omitted.

Thanks to Karthikeyan Bhargavan for reporting this issue.

CVE-2014-3572
Reviewed-by: Matt Caswell <matt@openssl.org>

(cherry picked from commit b15f8769)

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 31c65a7b)

when its SSL_CTX is updated.

From BoringSSL commit
https://boringssl.googlesource.com/boringssl/+/a5dc545bbcffd9c24cebe65e9ab5ce72d4535e3a



Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 61aa44ca)

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit 4c52816d)

By using non-DER or invalid encodings outside the signed portion of a
certificate the fingerprint can be changed without breaking the signature.
Although no details of the signed portion of the certificate can be changed
this can cause problems with some applications: e.g. those using the
certificate fingerprint for blacklists.

1. Reject signatures with non zero unused bits.

If the BIT STRING containing the signature has non zero unused bits reject
the signature. All current signature algorithms require zero unused bits.

2. Check certificate algorithm consistency.

Check the AlgorithmIdentifier inside TBS matches the one in the
certificate signature. NB: this will result in signature failure
errors for some broken certificates.

3. Check DSA/ECDSA signatures use DER.

Reencode DSA/ECDSA signatures and compare with the original received
signature. Return an error if there is a mismatch.

This will reject various cases including garbage after signature
(thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
(negative or with leading zeroes).

CVE-2014-8275
Reviewed-by: Emilia Käsper <emilia@openssl.org>

(cherry picked from commit 684400ce)

Check for NULL return from X509_NAME_ENTRY_new()

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
(cherry picked from commit 2c60925d)

When parsing ClientHello clear any existing extension state from
SRP login and SRTP profile.

Thanks to Karthikeyan Bhargavan for reporting this issue.
Reviewed-by: Matt Caswell <matt@openssl.org>

(cherry picked from commit 47606dda)

Conflicts:
	ssl/t1_lib.c

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Geoff Thorpe <geoff@openssl.org>

RT#3629

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

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Richard Levitte <levitte@openssl.org>

We need this for the freebsd kernel with glibc as used in the Debian kfreebsd
ports.  There shouldn't be a problem defining this on systems not using glibc.

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

The BIO_free() allocated ex_data again that we already freed.

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

* adds links to various related documents.
* fixes a few typos.
* rewords a few sentences.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 67472bd8)

Reviewed-by: Stephen Henson <steve@openssl.org>
(cherry picked from commit 7cfab40f)

Return an error code for I/O errors instead of an assertion failure.

PR#3470
Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>

(cherry picked from commit 2521fcd8)

is run with --strict-warnings.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 488f16e3)

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

According to X6.90 null, object identifier, boolean, integer and enumerated
types can only have primitive encodings: return an error if any of
these are received with a constructed encoding.
Reviewed-by: Emilia Käsper <emilia@openssl.org>

(cherry picked from commit f5e4b6b5)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 03af8430)

Causes more problems than it fixes: even though error codes
are not part of the stable API, several users rely on the
specific error code, and the change breaks them. Conversely,
we don't have any concrete use-cases for constant-time behaviour here.

This reverts commit f2df488a

.

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

Various build fixes, mostly uncovered by clang's unused-const-variable
and unused-function errors.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(cherry picked from commit 0e1c318e)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 8bc8450a)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit bf68456f)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 53332a75)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit cd387d21)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 0c403e80)