Fix reachable assert in SSLv2 servers.

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>

PKCS#7: avoid NULL pointer dereferences with missing content

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 ASN1_TYPE_cmp

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>

Free up ADB and CHOICE if already initialised.

CVE-2015-0287

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

ASN.1 print fix.

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 5dc1247a7494f50c88ce7492518bbe0ce6f124fa)

Cleanse buffers

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

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 35fafc4dbc0b3a717ad1b208fe2867e8c64867de)

Conflicts:
ssl/s3_enc.c

Conflicts:
ssl/t1_enc.c

update ordinals

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

fix warning

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit d6ca1cee8b6efac5906ac66443d1ca67fe689ff8)

Conflicts:
ssl/ssl_locl.h

Fix warnings.

Fix compiler warnings (similar to commit 25012d5e79)

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

Cleanse PKCS#8 private key components.

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 a8ae0891d4bfd18f224777aed1fbb172504421f1)

Conflicts:
crypto/dh/dh_ameth.c

Remove export ciphers from the DEFAULT cipher list

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 bc2e18a3c818ae7e2d8c996b6648aa4ae8e3ee28)

Update mkerr.pl for new format

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

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

Check public key is not NULL.

CVE-2015-0288
PR#3708

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 28a00bcd8e318da18031b2ac8778c64147cd54f9)

Fix format script.

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 437b14b533fe7f7408e3ebca6d5569f1d3347b1a)

Fix a failure to NULL a pointer freed on error.

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

CVE-2015-0209

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

Document -no_explicit

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 384dee51242e950c56b3bac32145957bfbf3cd4b)

Bring objects.pl output even closer to new format.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 849037169d98d070c27d094ac341fc6aca1ed2ca)

Harmonize objects.pl output with new format.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 7ce38623194f6df6a846cd01753b63f361c88e57)

Fix error handling in ssltest

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit ae632974f905c59176fa5f312826f8f692890b67)

Fixed bad formatting in crypto/des/spr.h

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 7e35f06ea908e47f87b723b5e951ffc55463eb8b)

Make objxref.pl output in correct format

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 6922ddee1b7b1bddbe0d59a5bbdcf8ff39343434)

Check PKCS#8 pkey field is valid before cleansing.

PR:3683
Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 52e028b9de371da62c1e51b46592517b1068d770)

Fix for reformat problems with e_padlock.c

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit d3b7cac41b957704932a0cdbc74d4d48ed507cd0)

Fix formatting error in pem.h

Reviewed-by: Andy Polyakov <appro@openssl.org>
Conflicts:
crypto/pem/pem.h

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 1.0.0 changes

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

Rerun util/openssl-format-source -v -c .

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

Run util/openssl-format-source -v -c .

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

Yet more changes to comments

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

More tweaks for comments due indent issues

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

Fix modes.h so that indent doesn't complain

Conflicts:
crypto/modes/modes.h

Conflicts:
crypto/modes/modes.h

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

Backport hw_ibmca.c from master due to failed merge

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

Tweaks for comments due to indent's inability to handle them

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

Move more comments that confuse indent

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>

Delete trailing whitespace from output.

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

Add -d debug option to save preprocessed files.

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

Test option -nc

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

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

Add ecp_nistz256.c to list of files skipped by openssl-format-source

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

Manually reformat aes_x86core.c and add it to the list of files skipped by
openssl-format-source

Conflicts:
crypto/aes/aes_x86core.c

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

crypto/ofb128.c: make it indent-friendly.

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

modes/ctr128.c: make it indent-friendly.

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

modes/cfb128.c: make it indent-friendly.

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

Fix indent comment corruption issue

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

Amend openssl-format-source so that it give more repeatable output

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

bn/bn_const.c: make it indent-friendly.

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

bn/asm/x86_64-gcc.cL make it indent-friendly.

Conflicts:
crypto/bn/asm/x86_64-gcc.c

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

bn/bn_asm.c: make it indent-friendly.

Conflicts:
crypto/bn/bn_asm.c

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

bn/bn_exp.c: make it indent-friendly.

Conflicts:
crypto/bn/bn_exp.c

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

Manually reformat aes_core.c
Add aes_core.c to the list of files not processed by openssl-format-source

Conflicts:
crypto/aes/aes_core.c

Conflicts:
crypto/aes/aes_core.c

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

Add obj_dat.h to the list of files that will not be processed by
openssl-format-source

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

Fix strange formatting by indent

Conflicts:
crypto/hmac/hmac.h

Conflicts:
crypto/evp/e_aes_cbc_hmac_sha256.c

Conflicts:
crypto/ec/ecp_nistp224.c
crypto/ec/ecp_nistp256.c
crypto/ec/ecp_nistp521.c
crypto/ec/ectest.c

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

indent has problems with comments that are on the right hand side of a line.
Sometimes it fails to format them very well, and sometimes it corrupts them!
This commit moves some particularly problematic ones.

Conflicts:
crypto/bn/bn.h
crypto/ec/ec_lcl.h
crypto/rsa/rsa.h
demos/engines/ibmca/hw_ibmca.c
ssl/ssl.h
ssl/ssl3.h

Conflicts:
crypto/ec/ec_lcl.h
ssl/tls1.h

Conflicts:
crypto/ec/ecp_nistp224.c
crypto/evp/evp.h
ssl/d1_both.c
ssl/ssl.h
ssl/ssl_lib.c

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

modes/cts128.c: make it indent-friendly.

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

crypto/mem_dbg.c: make it indent-friendly.

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

More indent fixes for STACK_OF

Conflicts:
ssl/s3_lib.c

Conflicts:
apps/cms.c
crypto/x509/x509_lu.c
crypto/x509/x509_vfy.h
ssl/s3_lib.c

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

Fix indent issue with functions using STACK_OF

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

Fix indent issue with engine.h

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

Fix logic to check for indent.pro

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

crypto/cryptlib.c: make it indent-friendly.

Conflicts:
crypto/cryptlib.c

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

bn/bntest.c: make it indent-friendly.

Conflicts:
crypto/bn/bntest.c

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

bn/bn_recp.c: make it indent-friendly.

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

engines/e_ubsec.c: make it indent-friendly.

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

apps/speed.c: make it indent-friendly.

Conflicts:
apps/speed.c

Conflicts:
apps/speed.c

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

Fix make errors

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

Make the script a little more location agnostic

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

Provide script for filtering data initialisers for structs/unions. indent just can't handle it.

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

Script fixes.

Don't use double newline for headers.
Don't interpret ASN1_PCTX as start of an ASN.1 module.

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

Run expand before perl, to make sure things are properly aligned

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

Force the use of our indent profile

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

Provide source reformating script. Requires GNU indent to be
available.

Script written by Tim Hudson, with amendments by Steve Henson, Rich Salz and
Matt Caswell

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

Fix source where indent will not be able to cope

Conflicts:
apps/ciphers.c
ssl/s3_pkt.c

Conflicts:
crypto/ec/ec_curve.c

Conflicts:
crypto/ec/ec_curve.c
ssl/s3_clnt.c
ssl/s3_srvr.c
ssl/ssl_sess.c

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

Additional comment changes for reformat of 1.0.0

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

Further comment amendments to preserve formatting prior to source reformat

(cherry picked from commit 4a7fa26ffd65bf36beb8d1cb8f29fc0ae203f5c5)

Conflicts:
crypto/x509v3/pcy_tree.c

Conflicts:
apps/apps.c
ssl/ssltest.c

Conflicts:
apps/apps.c
crypto/ec/ec2_oct.c
crypto/ec/ecp_nistp224.c
crypto/ec/ecp_nistp256.c
crypto/ec/ecp_nistp521.c
ssl/s3_cbc.c
ssl/ssl_sess.c
ssl/t1_lib.c

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

mark all block comments that need format preserving so that
indent will not alter them when reformatting comments

(cherry picked from commit 1d97c8435171a7af575f73c526d79e1ef0ee5960)

Conflicts:
crypto/bn/bn_lcl.h
crypto/bn/bn_prime.c
crypto/engine/eng_all.c
crypto/rc4/rc4_utl.c
crypto/sha/sha.h
ssl/kssl.c
ssl/t1_lib.c

Conflicts:
crypto/rc4/rc4_enc.c
crypto/x509v3/v3_scts.c
crypto/x509v3/v3nametest.c
ssl/d1_both.c
ssl/s3_srvr.c
ssl/ssl.h
ssl/ssl_locl.h
ssl/ssltest.c
ssl/t1_lib.c

Conflicts:
crypto/asn1/a_sign.c
crypto/bn/bn_div.c
crypto/dsa/dsa_asn1.c
crypto/ec/ecp_nistp224.c
crypto/ec/ecp_nistp256.c
crypto/ec/ecp_nistp521.c
crypto/ec/ecp_nistputil.c
crypto/modes/gcm128.c
crypto/opensslv.h
ssl/d1_both.c
ssl/heartbeat_test.c
ssl/s3_clnt.c
ssl/s3_srvr.c
ssl/ssl_sess.c
ssl/t1_lib.c
test/testutil.h

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

Prepare for 1.0.0r-dev

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

Prepare for 1.0.0q release

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

make update

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

Updates to CHANGES and NEWS

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

Fixup installation script for VMS

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

VMS fixups for 1.0.0

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

Make output from openssl version -f consistent with previous versions

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 2d2671790ee12dedd92c97f35b6feb755b8d4374)

Fix warning where BIO_FLAGS_UPLINK was being redefined.
This warning breaks the build in 1.0.0 and 0.9.8

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit b1ffc6ca1c387efad0772c16dfe426afef45dc4f)

Avoid deprecation problems in Visual Studio 13

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 86d21d0b9577322ac5da0114c5fac16eb49b4cef)

Further windows specific .gitignore entries

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 41c9cfbc4ee7345547fb98cccb8511f082f0910b)

Update .gitignore with windows files to be excluded from git

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

(cherry picked from commit 04f670cf3d8f22e0d197a071d2db536fb7ebd9c7)

Fix build failure on Windows due to undefined cflags identifier

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 5c5e7e1a7eb114cf136e1ae4b6a413bc48ba41eb)

Prepare for 1.0.0q-dev

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

Prepare for 1.0.0p release

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

make update

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

CHANGES and NEWS updates for release

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

A memory leak can occur in dtls1_buffer_record if either of the calls to
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>
(cherry picked from commit 652ff0f4796eecd8729b4690f2076d1c7ccb2862)

Unauthenticated DH client certificate fix.

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>

Follow on from CVE-2014-3571. This fixes the code that was the original source
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.

Conflicts:
ssl/d1_pkt.c

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

Fix crash in dtls1_get_record whilst in the listen state where you get two
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>

Fix for CVE-2014-3570.

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

fix error discrepancy

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 4a4d4158572fd8b3dc641851b8378e791df7972d)

use correct credit in CHANGES

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 4138e3882556c762d77eb827b8be98507cde48df)

use correct function name

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit cb62ab4b17818fe66d2fed0a7fe71969131c811b)

Remove blank line from start of cflags character array in buildinf.h

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit b691154e18c0367643696db3cf73debe9ddfa9ae)

Only allow ephemeral RSA keys in export ciphersuites.

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 4b4c1fcc88aec8c9e001b0a0077d3cd4de1ed0e6)

Conflicts:
CHANGES
doc/ssl/SSL_CTX_set_options.pod

ECDH downgrade bug fix.

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 b15f8769644b00ef7283521593360b7b2135cb63)

Conflicts:
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