oweals/openssl.git
9 years agoReject calls to X509_verify_cert that have not been reinitialised
Matt Caswell [Thu, 25 Jun 2015 08:47:15 +0000 (09:47 +0100)]
Reject calls to X509_verify_cert that have not been reinitialised

The function X509_verify_cert checks the value of |ctx->chain| at the
beginning, and if it is NULL then it initialises it, along with the value
of ctx->untrusted. The normal way to use X509_verify_cert() is to first
call X509_STORE_CTX_init(); then set up various parameters etc; then call
X509_verify_cert(); then check the results; and finally call
X509_STORE_CTX_cleanup(). The initial call to X509_STORE_CTX_init() sets
|ctx->chain| to NULL. The only place in the OpenSSL codebase  where
|ctx->chain| is set to anything other than a non NULL value is in
X509_verify_cert itself. Therefore the only ways that |ctx->chain| could be
non NULL on entry to X509_verify_cert is if one of the following occurs:
1) An application calls X509_verify_cert() twice without re-initialising
in between.
2) An application reaches inside the X509_STORE_CTX structure and changes
the value of |ctx->chain| directly.

With regards to the second of these, we should discount this - it should
not be supported to allow this.

With regards to the first of these, the documentation is not exactly
crystal clear, but the implication is that you must call
X509_STORE_CTX_init() before each call to X509_verify_cert(). If you fail
to do this then, at best, the results would be undefined.

Calling X509_verify_cert() with |ctx->chain| set to a non NULL value is
likely to have unexpected results, and could be dangerous. This commit
changes the behaviour of X509_verify_cert() so that it causes an error if
|ctx->chain| is anything other than NULL (because this indicates that we
have not been initialised properly). It also clarifies the associated
documentation. This is a follow up commit to CVE-2015-1793.

Reviewed-by: Stephen Henson <steve@openssl.org>
9 years agoAdd test for CVE-2015-1793
Matt Caswell [Wed, 1 Jul 2015 23:15:56 +0000 (00:15 +0100)]
Add test for CVE-2015-1793

This adds a test for CVE-2015-1793. This adds a new test file
verify_extra_test.c, which could form the basis for additional
verification tests.

Reviewed-by: Stephen Henson <steve@openssl.org>
Conflicts:
test/Makefile

9 years agoFix alternate chains certificate forgery issue
Matt Caswell [Wed, 24 Jun 2015 14:55:36 +0000 (15:55 +0100)]
Fix alternate chains certificate forgery issue

During certificate verfification, OpenSSL will attempt to find an
alternative certificate chain if the first attempt to build such a chain
fails. An error in the implementation of this logic can mean that an
attacker could cause certain checks on untrusted certificates to be
bypassed, such as the CA flag, enabling them to use a valid leaf
certificate to act as a CA and "issue" an invalid certificate.

This occurs where at least one cert is added to the first chain from the
trust store, but that chain still ends up being untrusted. In that case
ctx->last_untrusted is decremented in error.

Patch provided by the BoringSSL project.

CVE-2015-1793

Reviewed-by: Stephen Henson <steve@openssl.org>
9 years agoRelax CCM tag check.
Dr. Stephen Henson [Tue, 9 Jun 2015 22:17:06 +0000 (23:17 +0100)]
Relax CCM tag check.

In CCM mode don't require a tag before initialising decrypt: this allows
the tag length to be set without requiring the tag.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 9cca7be11d62298b2af0722f94345012c86eaed4)

9 years agodocument -2 return value
Dr. Stephen Henson [Mon, 6 Jul 2015 13:17:49 +0000 (14:17 +0100)]
document -2 return value

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 5727582cf51e98e5e0faa435e7da2c8929533c0d)

9 years agoFix PSK handling.
Dr. Stephen Henson [Wed, 1 Jul 2015 22:40:03 +0000 (23:40 +0100)]
Fix PSK handling.

The PSK identity hint should be stored in the SSL_SESSION structure
and not in the parent context (which will overwrite values used
by other SSL structures with the same SSL_CTX).

Use BUF_strndup when copying identity as it may not be null terminated.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 3c66a669dfc7b3792f7af0758ea26fe8502ce70c)

9 years agoCheck for errors with SRP
Dr. Stephen Henson [Thu, 25 Jun 2015 14:07:25 +0000 (15:07 +0100)]
Check for errors with SRP

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 5fced2395ddfb603a50fd1bd87411e603a59dc6f)

9 years agoDon't output bogus errors in PKCS12_parse
Dr. Stephen Henson [Wed, 24 Jun 2015 11:28:50 +0000 (12:28 +0100)]
Don't output bogus errors in PKCS12_parse

PR#3923

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit ffbf304d4832bd51bb0618f8ca5b7c26647ee664)

9 years agoRT3907-fix
Rich Salz [Mon, 22 Jun 2015 23:26:50 +0000 (19:26 -0400)]
RT3907-fix

Typo in local variable name; introduced by previous fix.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit cc3f3fc2b1c94d65824ab8d69595b6d89b17cf8d)

9 years agoRT3907: avoid "local" in testssl script
Rich Salz [Sat, 13 Jun 2015 21:18:47 +0000 (17:18 -0400)]
RT3907: avoid "local" in testssl script

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 75ba5c58c6b3b3326a6c3198100830afa120e7c3)

9 years agoCleanup mttest.c : because we no longer use stdio here, don't include it
Richard Levitte [Sun, 21 Jun 2015 19:35:59 +0000 (21:35 +0200)]
Cleanup mttest.c : because we no longer use stdio here, don't include it

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 8ca96efd24b73f917837fdd45b1c22d7b8ff8cbd)

9 years agoAdd -ldl to the build of mttest.c
Richard Levitte [Sun, 21 Jun 2015 17:19:59 +0000 (19:19 +0200)]
Add -ldl to the build of mttest.c

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit d62c98c81c7b47b7b1878fd7e91e5fd33818faf0)

9 years agoCleanup mttest.c : do not try to output reference counts when threads are done
Richard Levitte [Sun, 21 Jun 2015 17:16:50 +0000 (19:16 +0200)]
Cleanup mttest.c : do not try to output reference counts when threads are done

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 964626957f79e07ed97756527cdc7e84007c60c9)

9 years agoCleanup mttest.c : better error reporting when certs are missing
Richard Levitte [Sun, 21 Jun 2015 17:13:57 +0000 (19:13 +0200)]
Cleanup mttest.c : better error reporting when certs are missing

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 7a1789d254c561bd3024c971b5cfeeedd12d63f3)

9 years agoCleanup mttest.c : make ssl_method a pointer to const
Richard Levitte [Sun, 21 Jun 2015 17:12:33 +0000 (19:12 +0200)]
Cleanup mttest.c : make ssl_method a pointer to const

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit f4c73bfe0ab7a0e8f82fe2947c0f77fe3d98acab)

Conflicts:
crypto/threads/mttest.c

9 years agoCleanup mttest.c : more output changes
Richard Levitte [Sun, 21 Jun 2015 17:19:17 +0000 (19:19 +0200)]
Cleanup mttest.c : more output changes

More fprintf()s and printf()s to turn into BIO calls.

Reviewed-by: Rich Salz <rsalz@openssl.org>
9 years agoCleanup mttest.c : modernise output
Richard Levitte [Sun, 21 Jun 2015 17:11:43 +0000 (19:11 +0200)]
Cleanup mttest.c : modernise output

Construct bio_err and bio_stdout from file handles instead of FILE
pointers, since the latter might not be implemented (when OPENSSL_NO_STDIO
is defined).
Convert all output to use BIO_printf.
Change lh_foo to lh_SSL_SESSION_foo.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit bb8abd6735e198de36c1eb9098a7f1516d156220)

Conflicts:
crypto/threads/mttest.c

9 years agoCleanup mttest.c : modernise the threads setup
Richard Levitte [Sun, 21 Jun 2015 17:03:44 +0000 (19:03 +0200)]
Cleanup mttest.c : modernise the threads setup

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 5c78e1835285ce4acdc7cc4f4c06aa7d6661c9b4)

Conflicts:
crypto/threads/mttest.c

9 years agoCleanup mttest.c : remove MS_CALLBACK
Richard Levitte [Sun, 21 Jun 2015 16:51:18 +0000 (18:51 +0200)]
Cleanup mttest.c : remove MS_CALLBACK

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit a3f9286556d6d78c1800caae97a9328afb2557e6)

9 years agoRT1688: Add dependencies for parallel make
Rich Salz [Sun, 21 Jun 2015 19:12:20 +0000 (15:12 -0400)]
RT1688: Add dependencies for parallel make

Backport to 1.0.1 and 1.0.2 to fix RT 3905

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 8e6bb99979b95ee8b878e22e043ceb78d79c32a1)

9 years agoMake preprocessor error into real preprocessor error
Richard Levitte [Mon, 15 Jun 2015 07:59:25 +0000 (09:59 +0200)]
Make preprocessor error into real preprocessor error

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(cherry picked from commit b4f0d1a4a89b964dba80036a6348ca0a1913c526)

9 years agoRemove one extraneous parenthesis
Richard Levitte [Sat, 13 Jun 2015 11:13:55 +0000 (13:13 +0200)]
Remove one extraneous parenthesis

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(cherry picked from commit 30cf91784bfde82622f79d87d17d20ce73329532)

9 years agoPrepare for 1.0.1p-dev
Matt Caswell [Fri, 12 Jun 2015 15:24:26 +0000 (16:24 +0100)]
Prepare for 1.0.1p-dev

Reviewed-by: Richard Levitte <levitte@openssl.org>
9 years agoPrepare for 1.0.1o release OpenSSL_1_0_1o
Matt Caswell [Fri, 12 Jun 2015 15:20:59 +0000 (16:20 +0100)]
Prepare for 1.0.1o release

Reviewed-by: Richard Levitte <levitte@openssl.org>
9 years agoUpdated CHANGES and NEWS entries for new release
Matt Caswell [Fri, 12 Jun 2015 14:56:51 +0000 (15:56 +0100)]
Updated CHANGES and NEWS entries for new release

Reviewed-by: Richard Levitte <levitte@openssl.org>
9 years agoAllow a zero length extension block
Adam Langley [Fri, 12 Jun 2015 07:05:49 +0000 (08:05 +0100)]
Allow a zero length extension block

It is valid for an extension block to be present in a ClientHello, but to
be of zero length.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
9 years agoFix ABI break with HMAC
Matt Caswell [Fri, 12 Jun 2015 12:08:04 +0000 (13:08 +0100)]
Fix ABI break with HMAC

Recent HMAC changes broke ABI compatibility due to a new field in HMAC_CTX.
This backs that change out, and does it a different way.

Thanks to Timo Teras for the concept.

Conflicts:
crypto/hmac/hmac.c

Reviewed-by: Richard Levitte <levitte@openssl.org>
9 years agoPrepare for 1.0.1o-dev
Matt Caswell [Thu, 11 Jun 2015 14:08:34 +0000 (15:08 +0100)]
Prepare for 1.0.1o-dev

Reviewed-by: Stephen Henson <steve@openssl.org>
9 years agoPrepare for 1.0.1n release OpenSSL_1_0_1n
Matt Caswell [Thu, 11 Jun 2015 14:05:11 +0000 (15:05 +0100)]
Prepare for 1.0.1n release

Reviewed-by: Stephen Henson <steve@openssl.org>
9 years agobn/bn_gf2m.c: avoid infinite loop wich malformed ECParamters.
Andy Polyakov [Wed, 10 Jun 2015 22:18:01 +0000 (00:18 +0200)]
bn/bn_gf2m.c: avoid infinite loop wich malformed ECParamters.

CVE-2015-1788

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 4924b37ee01f71ae19c94a8934b80eeb2f677932)

9 years agoUpdate CHANGES and NEWS
Matt Caswell [Wed, 10 Jun 2015 10:49:31 +0000 (11:49 +0100)]
Update CHANGES and NEWS

Updates to CHANGES and NEWS to take account of the latest security fixes.

Reviewed-by: Rich Salz <rsalz@openssl.org>
9 years agoPKCS#7: Fix NULL dereference with missing EncryptedContent.
Emilia Kasper [Tue, 12 May 2015 17:00:30 +0000 (19:00 +0200)]
PKCS#7: Fix NULL dereference with missing EncryptedContent.

CVE-2015-1790

Reviewed-by: Rich Salz <rsalz@openssl.org>
9 years agoFix length checks in X509_cmp_time to avoid out-of-bounds reads.
Emilia Kasper [Wed, 8 Apr 2015 14:56:43 +0000 (16:56 +0200)]
Fix length checks in X509_cmp_time to avoid out-of-bounds reads.

Also tighten X509_cmp_time to reject more than three fractional
seconds in the time; and to reject trailing garbage after the offset.

CVE-2015-1789

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
9 years agoFix infinite loop in CMS
Dr. Stephen Henson [Fri, 5 Jun 2015 11:11:25 +0000 (12:11 +0100)]
Fix infinite loop in CMS

Fix loop in do_free_upto if cmsbio is NULL: this will happen when attempting
to verify and a digest is not recognised. Reported by Johannes Bauer.

CVE-2015-1792

Reviewed-by: Matt Caswell <matt@openssl.org>
9 years agoCorrection of make depend merge error
Richard Levitte [Thu, 11 Jun 2015 13:41:25 +0000 (15:41 +0200)]
Correction of make depend merge error

$(PROGS) was mistakenly removed, adding it back.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 5ef5b9ffa91ad6061c42291564a1dc786300ebdd)

9 years agoMore ssl_session_dup fixes
Matt Caswell [Thu, 11 Jun 2015 00:30:06 +0000 (01:30 +0100)]
More ssl_session_dup fixes

Fix error handling in ssl_session_dup, as well as incorrect setting up of
the session ticket. Follow on from CVE-2015-1791.

Thanks to LibreSSL project for reporting these issues.

Conflicts:
ssl/ssl_sess.c

Reviewed-by: Tim Hudson <tjh@openssl.org>
9 years agoOnly allow a temporary rsa key exchange when they key is larger than 512.
Kurt Roeckx [Sat, 18 Apr 2015 17:15:48 +0000 (19:15 +0200)]
Only allow a temporary rsa key exchange when they key is larger than 512.

Reviewed-by: Rich Salz <rsalz@openssl.org>
MR #838

(cherry picked from commit 57e477b9ec66542afc8c9c13ae7c4271209fb88f)

9 years agoProperly check certificate in case of export ciphers.
Kurt Roeckx [Sat, 6 Jun 2015 11:42:34 +0000 (13:42 +0200)]
Properly check certificate in case of export ciphers.

Reviewed-by: Rich Salz <rsalz@openssl.org>
MR #838

(cherry picked from commit 39a298a1c0e7a76e301b9f2ebe8d33d90ad0a3b4)

9 years agoDTLS handshake message fragments musn't span packets
Matt Caswell [Mon, 1 Jun 2015 16:25:29 +0000 (17:25 +0100)]
DTLS handshake message fragments musn't span packets

It should not be possible for DTLS message fragments to span multiple
packets. However previously if the message header fitted exactly into one
packet, and the fragment body was in the next packet then this would work.
Obviously this would fail if packets get re-ordered mid-flight.

Reviewed-by: Tim Hudson <tjh@openssl.org>
9 years agoFix leak in HMAC error path
Matt Caswell [Mon, 8 Jun 2015 08:29:56 +0000 (09:29 +0100)]
Fix leak in HMAC error path

In the event of an error in the HMAC function, leaks can occur because the
HMAC_CTX does not get cleaned up.

Thanks to the BoringSSL project for reporting this issue.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit e43a13c807e42688c72c4f3d001112bf0a110464)

9 years agoEC_POINT_is_on_curve does not return a boolean
Matt Caswell [Thu, 4 Jun 2015 13:22:00 +0000 (14:22 +0100)]
EC_POINT_is_on_curve does not return a boolean

The function EC_POINT_is_on_curve does not return a boolean value.
It returns 1 if the point is on the curve, 0 if it is not, and -1
on error. Many usages within OpenSSL were incorrectly using this
function and therefore not correctly handling error conditions.

With thanks to the Open Crypto Audit Project for reporting this issue.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(cherry picked from commit 68886be7e2cd395a759fcd41d2cede461b68843d)

9 years agoTighten extension handling
Matt Caswell [Thu, 30 Apr 2015 14:20:25 +0000 (15:20 +0100)]
Tighten extension handling

This adds additional checks to the processing of extensions in a ClientHello
to ensure that either no extensions are present, or if they are then they
take up the exact amount of space expected.

With thanks to the Open Crypto Audit Project for reporting this issue.

Reviewed-by: Stephen Henson <steve@openssl.org>
Conflicts:
ssl/t1_lib.c

9 years agoFix memory leaks in BIO_dup_chain()
Matt Caswell [Thu, 30 Apr 2015 13:51:10 +0000 (14:51 +0100)]
Fix memory leaks in BIO_dup_chain()

This fixes a memory leak that can occur whilst duplicating a BIO chain if
the call to CRYPTO_dup_ex_data() fails. It also fixes a second memory leak
where if a failure occurs after successfully creating the first BIO in the
chain, then the beginning of the new chain was not freed.

With thanks to the Open Crypto Audit Project for reporting this issue.

Reviewed-by: Stephen Henson <steve@openssl.org>
Conflicts:
crypto/bio/bio_lib.c

9 years agoReplace memset with OPENSSL_cleanse()
Matt Caswell [Thu, 30 Apr 2015 13:04:30 +0000 (14:04 +0100)]
Replace memset with OPENSSL_cleanse()

BUF_MEM_free() attempts to cleanse memory using memset immediately prior
to a free. This is at risk of being optimised away by the compiler, so
replace with a call to OPENSSL_cleanse() instead.

With thanks to the Open Crypto Audit Project for reporting this issue.

Reviewed-by: Stephen Henson <steve@openssl.org>
9 years agoFix Kerberos issue in ssl_session_dup
Matt Caswell [Wed, 10 Jun 2015 08:32:34 +0000 (09:32 +0100)]
Fix Kerberos issue in ssl_session_dup

The fix for CVE-2015-1791 introduced an error in ssl_session_dup for
Kerberos.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit dcad51bc13c9b716d9a66248bcc4038c071ff158)

9 years agoWhen making libcrypto from apps or test, make sure to include engines
Richard Levitte [Tue, 9 Jun 2015 21:06:23 +0000 (23:06 +0200)]
When making libcrypto from apps or test, make sure to include engines

For librypto to be complete, the stuff in both crypto/ and engines/
have to be built.  Doing 'make test' or 'make apps' from a clean
source tree failed to do so.
Corrected by using the new 'build_libcrypto' in the top Makefile.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit acaff3b797f50a0a0e17a0be45b7fafad962004e)

9 years agoAdd and rearrange building of libraries
Richard Levitte [Tue, 9 Jun 2015 23:34:26 +0000 (01:34 +0200)]
Add and rearrange building of libraries

There's a need for a target that will build all of libcrypto, so let's
add 'build_libcrypto' that does this.  For ortogonality, let's also
add 'build_libssl'.  Have both also depend on 'libcrypto.pc' and
'libssl.pc' so those get built together with the libraries.
This makes 'all' depend on fewer things directly.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 177b5f9c82e1152d6ce20a83556db629697fff65)

Conflicts:
Makefile.org

9 years agoreturn correct NID for undefined object
Dr. Stephen Henson [Mon, 8 Jun 2015 12:23:00 +0000 (13:23 +0100)]
return correct NID for undefined object

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 0fb9990480919163cc375a2b6c0df1d8d901a77b)

9 years agoUse CRYPTO_memcmp in s3_cbc.c
Emilia Kasper [Mon, 8 Jun 2015 13:04:28 +0000 (15:04 +0200)]
Use CRYPTO_memcmp in s3_cbc.c

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 05627d57e55517eae21c251fe287760bd1137218)

9 years agoUse CRYPTO_memcmp when comparing authenticators
Emilia Kasper [Wed, 27 May 2015 15:12:13 +0000 (17:12 +0200)]
Use CRYPTO_memcmp when comparing authenticators

Pointed out by Victor Vasiliev (vasilvv@mit.edu) via Adam Langley
(Google).

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 1e4a355dcabe2f75df5bb8b41b394d37037169d2)
(cherry picked from commit ac32a77cd69784568090e934a31622ddfee49ca7)

9 years agoRemove misleading comment
Matt Caswell [Thu, 4 Jun 2015 10:18:55 +0000 (11:18 +0100)]
Remove misleading comment

Remove a comment that suggested further clean up was required.
DH_free() performs the necessary cleanup.

With thanks to the Open Crypto Audit Project for reporting this issue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit f3d889523ee84f1e87e4da0d59e2702a4bee7907)

9 years agoClean premaster_secret for GOST
Matt Caswell [Thu, 4 Jun 2015 10:16:16 +0000 (11:16 +0100)]
Clean premaster_secret for GOST

Ensure OPENSSL_cleanse() is called on the premaster secret value calculated for GOST.

With thanks to the Open Crypto Audit Project for reporting this issue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit b7ee4815f2452c854cc859e8dda88f2673cdddea)

Conflicts:
ssl/s3_srvr.c

9 years agoClean Kerberos pre-master secret
Matt Caswell [Thu, 4 Jun 2015 10:41:30 +0000 (11:41 +0100)]
Clean Kerberos pre-master secret

Ensure the Kerberos pre-master secret has OPENSSL_cleanse called on it.

With thanks to the Open Crypto Audit Project for reporting this issue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 4e3dbe37ca39fa68b6949fbde62f3ec0f0584f7e)

9 years agoFix off-by-one error in BN_bn2hex
Matt Caswell [Tue, 19 May 2015 12:59:47 +0000 (13:59 +0100)]
Fix off-by-one error in BN_bn2hex

A BIGNUM can have the value of -0. The function BN_bn2hex fails to account
for this and can allocate a buffer one byte too short in the event of -0
being used, leading to a one byte buffer overrun. All usage within the
OpenSSL library is considered safe. Any security risk is considered
negligible.

With thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke and
Filip Palian for discovering and reporting this issue.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit c56353071d9849220714d8a556806703771b9269)

Conflicts:
crypto/bn/bn_print.c

9 years agoRT3230: Better test for C identifier
Annie Yousar [Sun, 3 May 2015 13:05:47 +0000 (09:05 -0400)]
RT3230: Better test for C identifier

objects.pl only looked for a space to see if the name could be
used as a C identifier.  Improve the test to match the real C
rules.

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 591b7aef05b22cba09b179e5787a9bf40dfc9508)

9 years agoAdd the macro OPENSSL_SYS_WIN64
Richard Levitte [Sun, 31 May 2015 15:47:31 +0000 (17:47 +0200)]
Add the macro OPENSSL_SYS_WIN64

This is for consistency.
Additionally, have its presence define OPENSSL_SYS_WINDOWS as well.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 3f131556d6678bc3754f1e6d98a9a5bfc24e368c)

Conflicts:
e_os2.h

9 years agoFix race condition in NewSessionTicket
Matt Caswell [Mon, 18 May 2015 15:27:48 +0000 (16:27 +0100)]
Fix race condition in NewSessionTicket

If a NewSessionTicket is received by a multi-threaded client when
attempting to reuse a previous ticket then a race condition can occur
potentially leading to a double free of the ticket data.

CVE-2015-1791

This also fixes RT#3808 where a session ID is changed for a session already
in the client session cache. Since the session ID is the key to the cache
this breaks the cache access.

Parts of this patch were inspired by this Akamai change:
https://github.com/akamai/openssl/commit/c0bf69a791239ceec64509f9f19fcafb2461b0d3

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 27c76b9b8010b536687318739c6f631ce4194688)

Conflicts:
ssl/ssl.h
ssl/ssl_err.c

9 years agoClear state in DTLSv1_listen
Matt Caswell [Mon, 9 Mar 2015 16:09:04 +0000 (16:09 +0000)]
Clear state in DTLSv1_listen

This is a backport of commit e83ee04bb7de800cdb71d522fa562e99328003a3 from
the master branch (and this has also been applied to 1.0.2). In 1.0.2 this
was CVE-2015-0207. For other branches there is no known security issue, but
this is being backported as a precautionary measure.

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.

Reviewed-by: Richard Levitte <levitte@openssl.org>
9 years agoCheck the message type requested is the type received in DTLS
Matt Caswell [Fri, 29 May 2015 16:05:01 +0000 (17:05 +0100)]
Check the message type requested is the type received in DTLS

dtls1_get_message has an |mt| variable which is the type of the message that
is being requested. If it is negative then any message type is allowed.
However the value of |mt| is not checked in one of the main code paths, so a
peer can send a message of a completely different type and it will be
processed as if it was the message type that we were expecting. This has
very little practical consequences because the current behaviour will still
fail when the format of the message isn't as expected.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 8c2b1d872b25f3ec78e04f5cd2de8f21e853c4a6)

9 years agocheck for error when creating PKCS#8 structure
Dr. Stephen Henson [Thu, 28 May 2015 14:44:20 +0000 (15:44 +0100)]
check for error when creating PKCS#8 structure

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 2849707fa65d2803e6d1c1603fdd3fd1fdc4c6cc)

9 years agoPEM doc fixes
Dr. Stephen Henson [Thu, 28 May 2015 14:45:57 +0000 (15:45 +0100)]
PEM doc fixes

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit f097f81c891bb1f479426d8ac9c9541390334983)

9 years agoHousekeeping 'make TABLE' update.
Andy Polyakov [Tue, 26 May 2015 08:36:56 +0000 (10:36 +0200)]
Housekeeping 'make TABLE' update.

Reviewed-by: Matt Caswell <matt@openssl.org>
9 years agoFix ssltest to use 1024-bit DHE parameters
Emilia Kasper [Fri, 22 May 2015 16:35:50 +0000 (18:35 +0200)]
Fix ssltest to use 1024-bit DHE parameters

Also add more ciphersuite test coverage, and a negative test for
512-bit DHE.

Reviewed-by: Rich Salz <rsalz@openssl.org>
9 years agoDon't check for a negative SRP extension size
Matt Caswell [Mon, 25 May 2015 23:05:28 +0000 (00:05 +0100)]
Don't check for a negative SRP extension size

The size of the SRP extension can never be negative (the variable
|size| is unsigned). Therefore don't check if it is less than zero.

RT#3862

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 9c89d290834f3ed9146eeb8b64fe5de817679a0b)

9 years agoFix error check in GOST engine
Matt Caswell [Mon, 25 May 2015 23:02:57 +0000 (00:02 +0100)]
Fix error check in GOST engine

The return value of i2d functions can be negative if an error occurs.
Therefore don't assign the return value to an unsigned type and *then*
check if it is negative.

RT#3862

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 90e7cdff3aa66779486914f88333f6601f0c1cf4)

9 years agoHandle unsigned struct timeval members
Matt Caswell [Mon, 25 May 2015 22:57:41 +0000 (23:57 +0100)]
Handle unsigned struct timeval members

The members of struct timeval on OpenVMS are unsigned. The logic for
calculating timeouts needs adjusting to deal with this.

RT#3862

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit fc52ac9028b9492fb086ba35a3352ea46e03ecfc)

9 years agoConfigure: replace -mv8 with -mcpu=v8 in SPARC config lines.
Andy Polyakov [Tue, 26 May 2015 07:47:16 +0000 (09:47 +0200)]
Configure: replace -mv8 with -mcpu=v8 in SPARC config lines.

RT#3860

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit aa1e42215b6729c0143fb056e3791e3fcdf7af6a)

9 years agofix copy paste error in ec_GF2m function prototypes
Billy Brumley [Fri, 22 May 2015 14:44:49 +0000 (17:44 +0300)]
fix copy paste error in ec_GF2m function prototypes

RT#3858

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 71f6130b7a96bacbffae4611796ed98c2f724d96)

9 years agobn/bn_lcl.h: fix MIPS-specific gcc version check.
Andy Polyakov [Mon, 25 May 2015 08:17:14 +0000 (10:17 +0200)]
bn/bn_lcl.h: fix MIPS-specific gcc version check.

RT#3859

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 60c268b21ac81cc6b1af5c5470282a613b96f6fd)

9 years agomd32_common.h: backport ICC fix.
Andy Polyakov [Sun, 24 May 2015 20:51:12 +0000 (22:51 +0200)]
md32_common.h: backport ICC fix.

RT#3843

Reviewed-by: Matt Caswell <matt@openssl.org>
9 years agoDon't send an alert if we've just received one
Matt Caswell [Sat, 23 May 2015 20:51:21 +0000 (21:51 +0100)]
Don't send an alert if we've just received one

If the record received is for a version that we don't support, previously we
were sending an alert back. However if the incoming record already looks
like an alert then probably we shouldn't do that. So suppress an outgoing
alert if it looks like we've got one incoming.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
9 years agoFix update and depend in engines/
Richard Levitte [Sat, 23 May 2015 04:33:41 +0000 (06:33 +0200)]
Fix update and depend in engines/

The update: target in engines/ didn't recurse into engines/ccgost.
The update: and depend: targets in engines/ccgost needed a fixup.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 8b822d2566853ee5e313c37529f71336209b28ab)

9 years agoMissed a couple of spots in the update change
Richard Levitte [Fri, 22 May 2015 17:23:43 +0000 (19:23 +0200)]
Missed a couple of spots in the update change

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 6f45032f6730622e8d484d92e07c7fce7d1f88ac)

Conflicts:
apps/Makefile

9 years agoFix the update target and remove duplicate file updates
Richard Levitte [Fri, 22 May 2015 15:54:06 +0000 (17:54 +0200)]
Fix the update target and remove duplicate file updates

We had updates of certain header files in both Makefile.org and the
Makefile in the directory the header file lived in.  This is error
prone and also sometimes generates slightly different results (usually
just a comment that differs) depending on which way the update was
done.

This removes the file update targets from the top level Makefile, adds
an update: target in all Makefiles and has it depend on the depend: or
local_depend: targets, whichever is appropriate, so we don't get a
double run through the whole file tree.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 0f539dc1a2f45580435c39dada44dd276e79cb88)

Conflicts:
Makefile.org
apps/Makefile
test/Makefile

9 years agoFix off-by-one in BN_rand
Matt Caswell [Tue, 19 May 2015 15:03:02 +0000 (16:03 +0100)]
Fix off-by-one in BN_rand

If BN_rand is called with |bits| set to 1 and |top| set to 1 then a 1 byte
buffer overflow can occur. There are no such instances within the OpenSSL at
the moment.

Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke, Filip Palian for
discovering and reporting this issue.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
9 years agoReject negative shifts for BN_rshift and BN_lshift
Matt Caswell [Tue, 19 May 2015 14:19:30 +0000 (15:19 +0100)]
Reject negative shifts for BN_rshift and BN_lshift

The functions BN_rshift and BN_lshift shift their arguments to the right or
left by a specified number of bits. Unpredicatable results (including
crashes) can occur if a negative number is supplied for the shift value.

Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke and Filip Palian
for discovering and reporting this issue.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(cherry picked from commit 7cc18d8158b5fc2676393d99b51c30c135502107)

Conflicts:
crypto/bn/bn.h
crypto/bn/bn_err.c

9 years agoLost alert in DTLS
Lubom [Thu, 7 May 2015 13:20:31 +0000 (14:20 +0100)]
Lost alert in DTLS

If a client receives a bad hello request in DTLS then the alert is not
sent correctly.

RT#2801

Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(cherry picked from commit 4dc1aa0436fdb8af50960db676b739c8ef81f38c)

9 years agoAdd documentation for the -no_alt_chains option for various apps, as well as the...
Matt Caswell [Tue, 27 Jan 2015 11:15:15 +0000 (11:15 +0000)]
Add documentation for the -no_alt_chains option for various apps, as well as the X509_V_FLAG_NO_ALT_CHAINS flag.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Conflicts:
doc/apps/cms.pod
doc/apps/ocsp.pod
doc/apps/s_client.pod
doc/apps/s_server.pod
doc/apps/smime.pod
doc/apps/verify.pod

9 years agoAdd -no_alt_chains option to apps to implement the new X509_V_FLAG_NO_ALT_CHAINS...
Matt Caswell [Tue, 27 Jan 2015 10:50:38 +0000 (10:50 +0000)]
Add -no_alt_chains option to apps to implement the new X509_V_FLAG_NO_ALT_CHAINS flag. Using this option means that when building certificate chains, the first chain found will be the one used. Without this flag, if the first chain found is not trusted then we will keep looking to see if we can build an alternative chain instead.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Conflicts:
apps/cms.c
apps/ocsp.c
apps/s_client.c
apps/s_server.c
apps/smime.c
apps/verify.c

9 years agoAdd flag to inhibit checking for alternate certificate chains. Setting this behaviour...
Matt Caswell [Tue, 27 Jan 2015 10:35:27 +0000 (10:35 +0000)]
Add flag to inhibit checking for alternate certificate chains. Setting this behaviour will force behaviour as per previous versions of OpenSSL

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
9 years agoIn certain situations the server provided certificate chain may no longer be valid...
Matt Caswell [Tue, 27 Jan 2015 10:03:29 +0000 (10:03 +0000)]
In certain situations the server provided certificate chain may no longer be valid. However the issuer of the leaf, or some intermediate cert is in fact in the trust store.

When building a trust chain if the first attempt fails, then try to see if
alternate chains could be constructed that are trusted.

RT3637
RT3621

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
9 years agoCorrectly check for export size limit
Kurt Roeckx [Sat, 18 Apr 2015 10:50:25 +0000 (12:50 +0200)]
Correctly check for export size limit

40 bit ciphers are limited to 512 bit RSA, 56 bit ciphers to 1024 bit.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit ac38115c1a4fb61c66c2a8cd2a9800751828d328)

9 years agoclient: reject handshakes with DH parameters < 768 bits.
Emilia Kasper [Tue, 19 May 2015 10:05:22 +0000 (12:05 +0200)]
client: reject handshakes with DH parameters < 768 bits.

Since the client has no way of communicating her supported parameter
range to the server, connections to servers that choose weak DH will
simply fail.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
9 years agoUpdate documentation with Diffie-Hellman best practices.
Emilia Kasper [Tue, 12 May 2015 14:10:05 +0000 (16:10 +0200)]
Update documentation with Diffie-Hellman best practices.
- Do not advise generation of DH parameters with dsaparam to save
computation time.
- Promote use of custom parameters more, and explicitly forbid use of
built-in parameters weaker than 2048 bits.
- Advise the callback to ignore <keylength> - it is currently called
with 1024 bits, but this value can and should be safely ignored by
servers.

Reviewed-by: Rich Salz <rsalz@openssl.org>
9 years agodhparam: fix documentation
Emilia Kasper [Wed, 13 May 2015 10:05:41 +0000 (12:05 +0200)]
dhparam: fix documentation

The default bitlength is now 2048. Also clarify that either the number
of bits or the generator must be present:

$ openssl dhparam -2
and
$ openssl dhparam 2048
generate parameters but
$ openssl dhparam
does not.

Reviewed-by: Matt Caswell <matt@openssl.org>
9 years agodhparam: set the default to 2048 bits
Emilia Kasper [Wed, 13 May 2015 09:57:55 +0000 (11:57 +0200)]
dhparam: set the default to 2048 bits

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
9 years agos_server: Use 2048-bit DH parameters by default.
Emilia Kasper [Tue, 12 May 2015 18:15:46 +0000 (20:15 +0200)]
s_server: Use 2048-bit DH parameters by default.

Reviewed-by: Rich Salz <rsalz@openssl.org>
9 years agoGitHub284: Fix typo in xx-32.pl scripts.
StudioEtrange [Wed, 20 May 2015 08:35:39 +0000 (04:35 -0400)]
GitHub284: Fix typo in xx-32.pl scripts.

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
9 years agoDon't add write errors into bytecounts
Robert Swiecki [Mon, 18 May 2015 23:08:02 +0000 (19:08 -0400)]
Don't add write errors into bytecounts

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 00d565cfbe90fab3b157e644caca4eb4a2ebec79)

9 years agomk1mf.pl: replace chop for windows.
Andy Polyakov [Sun, 15 Jul 2012 13:40:04 +0000 (13:40 +0000)]
mk1mf.pl: replace chop for windows.

Backport old patch to make it work in mixture of perls for Windows.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Cherry-picked from 7bb98eee3c9e4694dfc2217001d5075ce8d2906e

(cherry picked from commit 051b41df4105355a5a9c7f1c0bd00cc70b2d324c)

9 years agoAdd NULL checks from master
Rich Salz [Tue, 12 May 2015 15:49:32 +0000 (11:49 -0400)]
Add NULL checks from master

The big "don't check for NULL" cleanup requires backporting some
of the lowest-level functions to actually do nothing if NULL is
given.  This will make it easier to backport fixes to release
branches, where master assumes those lower-level functions are "safe"

This commit addresses those tickets: 3798 3799 3801.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit f34b095fab1569d093b639bfcc9a77d6020148ff)

9 years agoCall of memcmp with null pointers in obj_cmp()
Hanno Böck [Mon, 11 May 2015 10:33:37 +0000 (11:33 +0100)]
Call of memcmp with null pointers in obj_cmp()

The function obj_cmp() (file crypto/objects/obj_dat.c) can in some
situations call memcmp() with a null pointer and a zero length.

This is invalid behaviour. When compiling openssl with undefined
behaviour sanitizer (add -fsanitize=undefined to compile flags) this
can be seen. One example that triggers this behaviour is the pkcs7
command (but there are others, e.g. I've seen it with the timestamp
function):
apps/openssl pkcs7 -in test/testp7.pem

What happens is that obj_cmp takes objects of the type ASN1_OBJECT and
passes their ->data pointer to memcmp. Zero-sized ASN1_OBJECT
structures can have a null pointer as data.

RT#3816

Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 2b8dc08b74fc3c6d4c2fc855cc23bac691d985be)

9 years agoDon't allow a CCS when expecting a CertificateVerify
Matt Caswell [Wed, 6 May 2015 20:31:16 +0000 (21:31 +0100)]
Don't allow a CCS when expecting a CertificateVerify

Currently we set change_cipher_spec_ok to 1 before calling
ssl3_get_cert_verify(). This is because this message is optional and if it
is not sent then the next thing we would expect to get is the CCS. However,
although it is optional, we do actually know whether we should be receiving
one in advance. If we have received a client cert then we should expect
a CertificateVerify message. By the time we get to this point we will
already have bombed out if we didn't get a Certificate when we should have
done, so it is safe just to check whether |peer| is NULL or not. If it is
we won't get a CertificateVerify, otherwise we will. Therefore we should
change the logic so that we only attempt to get the CertificateVerify if
we are expecting one, and not allow a CCS in this scenario.

Whilst this is good practice for TLS it is even more important for DTLS.
In DTLS messages can be lost. Therefore we may be in a situation where a
CertificateVerify message does not arrive even though one was sent. In that
case the next message the server will receive will be the CCS. This could
also happen if messages get re-ordered in-flight. In DTLS if
|change_cipher_spec_ok| is not set and a CCS is received it is ignored.
However if |change_cipher_spec_ok| *is* set then a CCS arrival will
immediately move the server into the next epoch. Any messages arriving for
the previous epoch will be ignored. This means that, in this scenario, the
handshake can never complete. The client will attempt to retransmit
missing messages, but the server will ignore them because they are the wrong
epoch. The server meanwhile will still be waiting for the CertificateVerify
which is never going to arrive.

RT#2958

Reviewed-by: Emilia Käsper <emilia@openssl.org>
(cherry picked from commit a0bd6493369d960abef11c2346b9bbb308b4285a)

9 years agoAdd missing NULL check in X509V3_parse_list()
Kurt Cancemi [Thu, 7 May 2015 20:12:33 +0000 (16:12 -0400)]
Add missing NULL check in X509V3_parse_list()

Matt's note: I added a call to X509V3err to Kurt's original patch.

RT#3840

Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 344c271eb339fc2982e9a3584a94e51112d84584)

9 years agoFix for memcpy() and strcmp() being undefined.
Bjoern D. Rasmussen [Sun, 10 May 2015 05:51:29 +0000 (07:51 +0200)]
Fix for memcpy() and strcmp() being undefined.

clang says: "s_cb.c:958:9: error: implicitly declaring library function
'memcpy'"

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 8f744cceff5bce8cb00a6ddd739c1bbb85c142ea)

Conflicts:
apps/s_cb.c

9 years agoCheck sk_SSL_CIPHER_new_null return value
Matt Caswell [Sat, 9 May 2015 05:51:25 +0000 (13:51 +0800)]
Check sk_SSL_CIPHER_new_null return value

If sk_SSL_CIPHER_new_null() returns NULL then ssl_bytes_to_cipher_list()
should also return NULL.

Based on an original patch by mrpre <mrpre@163.com>.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 14def5f5375594830597cc153e11c6017f6adddf)

9 years agoAdd more error state transitions (DTLS)
Matt Caswell [Thu, 30 Apr 2015 10:50:08 +0000 (11:50 +0100)]
Add more error state transitions (DTLS)

Ensure all fatal errors transition into the new error state for DTLS.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit cefc93910c4c0f7fa9f8c1f8f7aad084a7fa87d2)

Conflicts:
ssl/d1_srvr.c

Conflicts:
ssl/d1_srvr.c

9 years agoAdd more error state transitions (client)
Matt Caswell [Thu, 30 Apr 2015 10:32:35 +0000 (11:32 +0100)]
Add more error state transitions (client)

Ensure all fatal errors transition into the new error state on the client
side.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit cc273a93617a5c1e69cb5db6f655e463f8e31806)

Conflicts:
ssl/s3_clnt.c

Conflicts:
ssl/s3_clnt.c

9 years agoAdd more error state transitions
Matt Caswell [Thu, 30 Apr 2015 10:11:04 +0000 (11:11 +0100)]
Add more error state transitions

Ensure all fatal errors transition into the new error state on the server
side.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit cf9b0b6fb253fd40225d7c648a08646686e62d2d)

Conflicts:
ssl/s3_srvr.c

9 years agoAdd Error state
Matt Caswell [Thu, 23 Apr 2015 19:01:33 +0000 (20:01 +0100)]
Add Error state

Reusing an SSL object when it has encountered a fatal error can
have bad consequences. This is a bug in application code not libssl
but libssl should be more forgiving and not crash.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit a89db885e0d8aac3a9df1bbccb0c1ddfd8b2e10a)

Conflicts:
ssl/s3_srvr.c
ssl/ssl_stat.c