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: NDr 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: NMatt Caswell <matt@openssl.org>

Reviewed-by: NEmilia Kasper <emilia@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: NDr Stephen 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: NMatt Caswell <matt@openssl.org>

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

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

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

context was also inherited (matches that of the existing SSL_CTX).
Reviewed-by: NTim Hudson <tjh@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>

Change by SteveH from original by John Denker (in the RT)
Reviewed-by: NRich Salz <rsalz@openssl.org>

Show only the #define, not the values, in BIO_f_buffer.  Data
abstraction and we can remove a "see also" entry.

Remove internal forward reference to NOTES in EVP_EncryptInit; just
say "see below" as we do in the other pages.

Add missing (3) in pem.pod so the L<> entry is consistent.
Fix entry to point to the "master" page, not the symlink'd one.
Reviewed-by: NMatt Caswell <matt@openssl.org>

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

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

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

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

This is re-commit without unrelated modification.
Reviewed-by: NMatt Caswell <matt@openssl.org>

This reverts commit 4fec9150.
Reviewed-by: NMatt Caswell <matt@openssl.org>

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

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

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: NMatt Caswell <matt@openssl.org>

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: NMatt Caswell <matt@openssl.org>

Leftovers from commit 448155e9
Remove now-unused #define's
Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NEmilia Käsper <emilia@openssl.org>
(cherry picked from commit 31c65a7bc0de7ff1446645d41af388893362f579)

when its SSL_CTX is updated.

From BoringSSL commit
https://boringssl.googlesource.com/boringssl/+/a5dc545bbcffd9c24cebe65e9ab5ce72d4535e3aReviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NEmilia Käsper <emilia@openssl.org>

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: NEmilia Käsper <emilia@openssl.org>

RT3638
Reviewed-by: NEmilia Käsper <emilia@openssl.org>

RT3638
Reviewed-by: NEmilia Käsper <emilia@openssl.org>

This change documents the world as-is, by turning all warnings on,
and then turning warnings that trigger off again.
Reviewed-by: NAndy Polyakov <appro@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>

This facilitates "universal" builds, ones that target multiple
architectures, e.g. ARMv5 through ARMv7. See commentary in
Configure for details.
Reviewed-by: NArd Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>

RT: 3607
Reviewed-by: NAdam Langley <agl@google.com>
Reviewed-by: NEmilia Kasper <emilia@openssl.org>

Check for NULL return from X509_NAME_ENTRY_new()
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

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

MS Server gated cryptography is obsolete and dates from the time of export
restrictions on strong encryption and is only used by ancient versions of
MSIE.
Reviewed-by: NMatt Caswell <matt@openssl.org>

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

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

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

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

None of this should live in writable memory
Signed-off-by: NKurt Roeckx <kurt@roeckx.be>
Reviewed-by: NGeoff Thorpe <geoff@openssl.org>

gettimeofday was undefined
Reviewed-by: NGeoff Thorpe <geoff@openssl.org>

indent will not alter them when reformatting comments
Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>