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>

CVE-2015-0287

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

When printing out an ASN.1 structure if the type is an item template don't
fall thru and attempt to interpret as a primitive type.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 5dc1247a)

Cleanse various intermediate buffers used by the PRF (backported version
from master).

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 35fafc4d)

Conflicts:
	ssl/s3_enc.c

Conflicts:
	ssl/t1_enc.c

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

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit d6ca1cee)

Conflicts:
	ssl/ssl_locl.h

Fix compiler warnings (similar to commit 25012d5e

)

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

New function ASN1_STRING_clear_free which cleanses an ASN1_STRING
structure before freeing it.

Call ASN1_STRING_clear_free on PKCS#8 private key components.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit a8ae0891)

Conflicts:
	crypto/dh/dh_ameth.c

They are moved to the COMPLEMENTOFDEFAULT instead.
This also fixes SSLv2 to be part of COMPLEMENTOFDEFAULT.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit bc2e18a3)

Make the output from mkerr.pl consistent with the newly reformatted code.

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

CVE-2015-0288
PR#3708

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 28a00bcd)

The format script didn't correctly recognise some ASN.1 macros and
didn't reformat some files as a result. Fix script and reformat
affected files.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 437b14b5)

Inspired by BoringSSL commit 517073cd4b by Eric Roman <eroman@chromium.org>

CVE-2015-0209

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

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 384dee51)

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 84903716)

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 7ce38623)

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit ae632974)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 7e35f06e)

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 6922ddee)

PR:3683
Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 52e028b9)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit d3b7cac4)

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

Conflicts:
	crypto/pem/pem.h

This should be a one off operation (subsequent invokation of the
script should not move them)

This commit is for the 1.0.0 changes

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

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

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

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

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

Conflicts:
	crypto/modes/modes.h

Conflicts:
	crypto/modes/modes.h

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

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

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

Conflicts:
	crypto/dsa/dsa.h
	demos/engines/ibmca/hw_ibmca.c
	ssl/ssl_locl.h

Conflicts:
	crypto/bn/rsaz_exp.c
	crypto/evp/e_aes_cbc_hmac_sha1.c
	crypto/evp/e_aes_cbc_hmac_sha256.c
	ssl/ssl_locl.h

Conflicts:
	crypto/ec/ec2_oct.c
	crypto/ec/ecp_nistp256.c
	crypto/ec/ecp_nistp521.c
	crypto/ec/ecp_nistputil.c
	crypto/ec/ecp_oct.c
	crypto/modes/gcm128.c
	ssl/ssl_locl.h

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

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

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

Add option -nc which sets COMMENTS=true but disables all indent comment
reformatting options.

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

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

openssl-format-source

Conflicts:
	crypto/aes/aes_x86core.c

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

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

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

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