openssl.git
5 years agogcm.c: address linker warning about OPENSSL_ia32cap_P size mismatch.
Andy Polyakov [Mon, 1 Jun 2015 20:51:33 +0000 (22:51 +0200)]
gcm.c: address linker warning about OPENSSL_ia32cap_P size mismatch.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 75c4827dfe6f52ccd687a283e6108a88ba3b8ec4)

5 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>
5 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)

5 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)

5 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

5 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

5 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>
5 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>
5 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)

5 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

5 years agoExplicitly mention PKCS5_PBKDF2_HMAC in EVP doc.
Jeffrey Walton [Sun, 7 Jun 2015 01:52:56 +0000 (21:52 -0400)]
Explicitly mention PKCS5_PBKDF2_HMAC in EVP doc.

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 82c4d793181058de9fde5c9088fd400fdb7e01e3)

5 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)

5 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>
5 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)

5 years agoUse cc instead of gcc so either clang or gcc is used as appropriate. Add clang
Ben Laurie [Fri, 1 May 2015 14:53:46 +0000 (15:53 +0100)]
Use cc instead of gcc so either clang or gcc is used as appropriate. Add clang
flags needed to keep it happy.

Reviewed-by: Richard Levitte <levitte@openssl.org>
5 years agoAllow all curves when the client doesn't send an supported elliptic curves extension
Kurt Roeckx [Sat, 30 May 2015 17:20:12 +0000 (19:20 +0200)]
Allow all curves when the client doesn't send an supported elliptic curves extension

At least in the case of SSLv3 we can't send an extention.

Reviewed-by: Matt Caswell <matt@openssl.org>
MR #811

(cherry picked from commit 3c06513f3833d4692f620e2c03d7a840871c08a7)

5 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)

5 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

5 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>
5 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

5 years agoFix DTLS session resumption
Matt Caswell [Wed, 6 May 2015 10:40:06 +0000 (11:40 +0100)]
Fix DTLS session resumption

The session object on the client side is initially created during
construction of the ClientHello. If the client is DTLS1.2 capable then it
will store 1.2 as the version for the session. However if the server is only
DTLS1.0 capable then when the ServerHello comes back the client switches to
using DTLS1.0 from then on. However the session version does not get
updated. Therefore when the client attempts to resume that session the
server throws an alert because of an incorrect protocol version.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 7322abf5cefdeb47c7d61f3b916c428bf2cd69b6)

Conflicts:
ssl/s3_clnt.c

5 years agomake update
Dr. Stephen Henson [Mon, 1 Jun 2015 11:50:47 +0000 (12:50 +0100)]
make update

Reviewed-by: Matt Caswell <matt@openssl.org>
5 years agoAdd funtions to set item_sign and item_verify
Sergey Agievich [Mon, 1 Jun 2015 11:48:27 +0000 (12:48 +0100)]
Add funtions to set item_sign and item_verify

PR#3872

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Stephen Henson <steve@openssl.org>
5 years agoFix compilation failure for some tool chains
Matt Caswell [Tue, 2 Jun 2015 19:18:05 +0000 (20:18 +0100)]
Fix compilation failure for some tool chains

Some tool chains (e.g. android) do not define IP_PMTUDISC_PROBE, and so
this build breaks.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 133dce447b259e0bb93076bf5fd0ce475d16910a)

5 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)

5 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

5 years agoGH249: Fix bad regexp in arg parsing.
Olaf Johansson [Tue, 2 Jun 2015 11:41:35 +0000 (07:41 -0400)]
GH249: Fix bad regexp in arg parsing.

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 8846adbd36c1de2b0d38a73ca32e28fde50083b8)

5 years agoFix IP_MTU_DISCOVER typo
Per Allansson [Tue, 2 Jun 2015 08:38:28 +0000 (09:38 +0100)]
Fix IP_MTU_DISCOVER typo

The code in bss_dgram.c checks if IP_MTUDISCOVER is defined, where it
should test for IP_MTU_DISCOVER

RT#3888

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 0baaff1a76d4c91b9c1121059be63175454d7b03)

5 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>
5 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)

5 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)

5 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)

5 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>
(cherry picked from commit 1ee85aab75d7c9f20058f781bfe9222323df08eb)

5 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)

5 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)

5 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)

5 years agoHousekeeping 'make TABLE' update.
Andy Polyakov [Tue, 26 May 2015 07:47:35 +0000 (09:47 +0200)]
Housekeeping 'make TABLE' update.

Reviewed-by: Matt Caswell <matt@openssl.org>
5 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>
5 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)

5 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)

5 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>
5 years agobn/asm/x86_64-mont5.pl: fix valgrind error.
Andy Polyakov [Wed, 20 May 2015 07:36:48 +0000 (09:36 +0200)]
bn/asm/x86_64-mont5.pl: fix valgrind error.

bn_get_bits5 was overstepping array boundary by 1 byte. It was exclusively
read overstep and data could not have been used. The only potential problem
would be if array happens to end on the very edge of last accesible page.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 69567687b0b7ed67831c17a010f4d46dfd059aef)

5 years agobn/bn_gf2m.c: appease STACK, unstable code detector.
Andy Polyakov [Wed, 20 May 2015 07:24:36 +0000 (09:24 +0200)]
bn/bn_gf2m.c: appease STACK, unstable code detector.

RT#3852

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 86e5d1e32b2d702a5fc777e612cd746e790098ef)

5 years agobn/asm/vis3-mont.pl: fix intermittent EC failures on SPARC T3.
Andy Polyakov [Wed, 13 May 2015 20:19:59 +0000 (22:19 +0200)]
bn/asm/vis3-mont.pl: fix intermittent EC failures on SPARC T3.

BLKINIT optimization worked on T4, but for some reason appears "too
aggressive" for T3 triggering intermiitent EC failures. It's not clear
why only EC is affected...

Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 579734ced696125c0768a2f4e56e97939b0e6e49)

5 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)

5 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

5 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

5 years agoFix typo setting up certificate masks
Matt Caswell [Fri, 22 May 2015 12:48:49 +0000 (13:48 +0100)]
Fix typo setting up certificate masks

The certificate masks are used to select which ciphersuite we are going to
use. The variables |emask_k| and |emask_a| relate to export grade key
exchange and authentication respecitively. The variables |mask_k| and
|mask_a| are the equivalent versions for non-export grade. This fixes an
instance where the two usages of export/non-export were mixed up. In
practice it makes little difference since it still works!

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit fdfe8b06ae97da3bc3a77aa3db00f8e0445f3c70)

5 years agoRemove export static DH ciphersuites
Matt Caswell [Fri, 22 May 2015 12:33:19 +0000 (13:33 +0100)]
Remove export static DH ciphersuites

Remove support for the two export grade static DH ciphersuites. These two
ciphersuites were newly added (along with a number of other static DH
ciphersuites) to 1.0.2. However the two export ones have *never* worked
since they were introduced. It seems strange in any case to be adding new
export ciphersuites, and given "logjam" it also does not seem correct to
fix them.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 13f8eb4730b9fc039e743870f81e5ff54b3d05b8)

Conflicts:
CHANGES

5 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>
5 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

5 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)

5 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)

5 years agoOnly support >= 256-bit elliptic curves with ecdh_auto (server) or by default (client).
Emilia Kasper [Wed, 20 May 2015 13:47:51 +0000 (15:47 +0200)]
Only support >= 256-bit elliptic curves with ecdh_auto (server) or by default (client).

Also reorder preferences to prefer prime curves to binary curves, and P-256 to everything else.

The result:

$ openssl s_server -named_curves "auto"

This command will negotiate an ECDHE ciphersuite with P-256:

$ openssl s_client

This command will negotiate P-384:

$ openssl s_client -curves "P-384"

This command will not negotiate ECDHE because P-224 is disabled with "auto":

$ openssl s_client -curves "P-224"

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
5 years agoclient: reject handshakes with DH parameters < 768 bits.
Emilia Kasper [Tue, 19 May 2015 09:53:31 +0000 (11:53 +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>
5 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>
5 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>
5 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>
5 years agoGitHub284: Fix typo in xx-32.pl scripts.
StudioEtrange [Wed, 20 May 2015 08:33:57 +0000 (04:33 -0400)]
GitHub284: Fix typo in xx-32.pl scripts.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Signed-off-by: Rich Salz <rsalz@openssl.org>
5 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)

5 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

5 years agoRT1207: document SSL_COMP_free_compression_methods.
Rich Salz [Fri, 8 May 2015 20:06:50 +0000 (16:06 -0400)]
RT1207: document SSL_COMP_free_compression_methods.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit c490a5512e988559a830c15b8efb1d0376f2e282)

5 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>
5 years agoaes/asm/aesni-sha256-x86_64.pl: fix Windows compilation failure with old assembler.
Andy Polyakov [Tue, 21 Apr 2015 12:52:17 +0000 (14:52 +0200)]
aes/asm/aesni-sha256-x86_64.pl: fix Windows compilation failure with old assembler.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 82c4a079395223c0063100854a0981976db9848f)

5 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)

5 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)

5 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)

5 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

5 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)

5 years agoFix typo in valid_star
Viktor Dukhovni [Thu, 7 May 2015 17:43:36 +0000 (13:43 -0400)]
Fix typo in valid_star

Reviewed-by: Rich Salz <rsalz@akamai.com>
5 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

5 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

5 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

5 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

5 years agoRemove libcrypto to libssl dependency
Matt Caswell [Mon, 4 May 2015 22:15:46 +0000 (23:15 +0100)]
Remove libcrypto to libssl dependency

Remove dependency on ssl_locl.h from v3_scts.c, and incidentally fix a build problem with
kerberos (the dependency meant v3_scts.c was trying to include krb5.h, but without having been
passed the relevanant -I flags to the compiler)

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
(cherry picked from commit d13bd6130bd856e9f512c43499e5fc70943bf133)

Conflicts:
crypto/x509v3/v3_scts.c

5 years agoRT2943: Check sizes if -iv and -K arguments
Richard Levitte [Mon, 4 May 2015 15:34:40 +0000 (17:34 +0200)]
RT2943: Check sizes if -iv and -K arguments

RT2943 only complains about the incorrect check of -K argument size,
we might as well do the same thing with the -iv argument.

Before this, we only checked that the given argument wouldn't give a
bitstring larger than EVP_MAX_KEY_LENGTH.  we can be more precise and
check against the size of the actual cipher used.

(cherry picked from commit 8920a7cd04f43b1a090d0b0a8c9e16b94c6898d4)

Reviewed-by: Rich Salz <rsalz@openssl.org>
5 years agoFix cut/paste error
Rich Salz [Mon, 4 May 2015 14:34:51 +0000 (10:34 -0400)]
Fix cut/paste error

Was memset with wrong sizeof.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 23b0fa5ab6b6b9f0a9350e24ac5ddb8275802617)

5 years agoRT3820: Don't call GetDesktopWindow()
Gilles Khouzam [Sat, 2 May 2015 02:20:42 +0000 (22:20 -0400)]
RT3820: Don't call GetDesktopWindow()

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit bed2edf1cb73f1fe2c11029acc694086bc14443e)

5 years agoRT3776: Wrong size for malloc
Rich Salz [Sat, 2 May 2015 02:06:07 +0000 (22:06 -0400)]
RT3776: Wrong size for malloc

Use sizeof *foo parameter, to avoid these errors.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(cherry picked from commit 53ba0a9e91ad203de2943edaf1090ab17ec435fa)

5 years agoFix uninitialized variable.
Hanno Böck [Sat, 2 May 2015 02:27:20 +0000 (22:27 -0400)]
Fix uninitialized variable.

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(cherry picked from commit 539ed89f686866b82a9ec9a4c3b112878d29cd73)

5 years agoFix buffer overrun in RSA signing
Matt Caswell [Wed, 29 Apr 2015 12:22:18 +0000 (13:22 +0100)]
Fix buffer overrun in RSA signing

The problem occurs in EVP_PKEY_sign() when using RSA with X931 padding.
It is only triggered if the RSA key size is smaller than the digest length.
So with SHA512 you can trigger the overflow with anything less than an RSA
512 bit key. I managed to trigger a 62 byte overflow when using a 16 bit RSA
key. This wasn't sufficient to cause a crash, although your mileage may
vary.

In practice RSA keys of this length are never used and X931 padding is very
rare. Even if someone did use an excessively short RSA key, the chances of
them combining that with a longer digest and X931 padding is very
small. For these reasons I do not believe there is a security implication to
this. Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3
Solutions) for reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 34166d41892643a36ad2d1f53cc0025e2edc2a39)

5 years agoAdd sanity check to print_bin function
Matt Caswell [Wed, 29 Apr 2015 08:58:10 +0000 (09:58 +0100)]
Add sanity check to print_bin function

Add a sanity check to the print_bin function to ensure that the |off|
argument is positive. Thanks to Kevin Wojtysiak (Int3 Solutions) and
Paramjot Oberoi (Int3 Solutions) for reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 3deeeeb61b0c5b9b5f0993a67b7967d2f85186da)

5 years agoAdd sanity check to ssl_get_prev_session
Matt Caswell [Tue, 28 Apr 2015 14:28:23 +0000 (15:28 +0100)]
Add sanity check to ssl_get_prev_session

Sanity check the |len| parameter to ensure it is positive. Thanks to Kevin
Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3 Solutions) for
reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit cb0f400b0cea2d2943f99b1e89c04ff6ed748cd5)

5 years agoSanity check the return from final_finish_mac
Matt Caswell [Tue, 28 Apr 2015 14:19:50 +0000 (15:19 +0100)]
Sanity check the return from final_finish_mac

The return value is checked for 0. This is currently safe but we should
really check for <= 0 since -1 is frequently used for error conditions.
Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3
Solutions) for reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit c427570e5098e120cbcb66e799f85c317aac7b91)

Conflicts:
ssl/ssl_locl.h

5 years agoAdd sanity check in ssl3_cbc_digest_record
Matt Caswell [Mon, 27 Apr 2015 14:41:42 +0000 (15:41 +0100)]
Add sanity check in ssl3_cbc_digest_record

For SSLv3 the code assumes that |header_length| > |md_block_size|. Whilst
this is true for all SSLv3 ciphersuites, this fact is far from obvious by
looking at the code. If this were not the case then an integer overflow
would occur, leading to a subsequent buffer overflow. Therefore I have
added an explicit sanity check to ensure header_length is always valid.
Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3
Solutions) for reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 29b0a15a480626544dd0c803d5de671552544de6)

5 years agoClarify logic in BIO_*printf functions
Matt Caswell [Mon, 27 Apr 2015 14:41:03 +0000 (15:41 +0100)]
Clarify logic in BIO_*printf functions

The static function dynamically allocates an output buffer if the output
grows larger than the static buffer that is normally used. The original
logic implied that |currlen| could be greater than |maxlen| which is
incorrect (and if so would cause a buffer overrun). Also the original
logic would call OPENSSL_malloc to create a dynamic buffer equal to the
size of the static buffer, and then immediately call OPENSSL_realloc to
make it bigger, rather than just creating a buffer than was big enough in
the first place. Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot
Oberoi (Int3 Solutions) for reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 9d9e37744cd5119f9921315864d1cd28717173cd)

5 years agoSanity check EVP_EncodeUpdate buffer len
Matt Caswell [Mon, 27 Apr 2015 10:13:56 +0000 (11:13 +0100)]
Sanity check EVP_EncodeUpdate buffer len

There was already a sanity check to ensure the passed buffer length is not
zero. Extend this to ensure that it also not negative. Thanks to Kevin
Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3 Solutions) for
reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit b86d7dca69f5c80abd60896c8ed3039fc56210cc)

5 years agoSanity check EVP_CTRL_AEAD_TLS_AAD
Matt Caswell [Mon, 27 Apr 2015 10:07:06 +0000 (11:07 +0100)]
Sanity check EVP_CTRL_AEAD_TLS_AAD

The various implementations of EVP_CTRL_AEAD_TLS_AAD expect a buffer of at
least 13 bytes long. Add sanity checks to ensure that the length is at
least that. Also add a new constant (EVP_AEAD_TLS1_AAD_LEN) to evp.h to
represent this length. Thanks to Kevin Wojtysiak (Int3 Solutions) and
Paramjot Oberoi (Int3 Solutions) for reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit c8269881093324b881b81472be037055571f73f3)

Conflicts:
ssl/record/ssl3_record.c

5 years agoSanity check DES_enc_write buffer length
Matt Caswell [Mon, 27 Apr 2015 10:04:56 +0000 (11:04 +0100)]
Sanity check DES_enc_write buffer length

Add a sanity check to DES_enc_write to ensure the buffer length provided
is not negative. Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot
Oberoi (Int3 Solutions) for reporting this issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 873fb39f20b6763daba226b74e83fb194924c7bf)

5 years agoAdd length sanity check in SSLv2 n_do_ssl_write()
Matt Caswell [Wed, 29 Apr 2015 15:15:40 +0000 (16:15 +0100)]
Add length sanity check in SSLv2 n_do_ssl_write()

Fortify flagged up a problem in n_do_ssl_write() in SSLv2. Analysing the
code I do not believe there is a real problem here. However the logic flows
are complicated enough that a sanity check of |len| is probably worthwhile.

Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3
Solutions) for reporting this issue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
5 years agoRevert "Fix verify algorithm."
Matt Caswell [Tue, 21 Apr 2015 10:28:41 +0000 (11:28 +0100)]
Revert "Fix verify algorithm."

This reverts commit 47daa155a31b0a54ce09ad2ed4d55fad74096dab.

The above commit was backported to the 1.0.2 branch as part of backporting
the alternative chain verify algorithm changes. However it has been pointed
out (credit to Shigeki Ohtsu) that this is unnecessary in 1.0.2 as this
commit is a work around for loop checking that only exists in master.

Reviewed-by: Richard Levitte <levitte@openssl.org>
5 years agoNISTZ256: use EC_POINT API and check errors.
Emilia Kasper [Mon, 27 Apr 2015 16:49:43 +0000 (18:49 +0200)]
NISTZ256: use EC_POINT API and check errors.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 6038354cf8ca0792420c1ac0ce50d6d2f0aedebf)

5 years agoNISTZ256: don't swallow malloc errors
Emilia Kasper [Mon, 27 Apr 2015 14:16:15 +0000 (16:16 +0200)]
NISTZ256: don't swallow malloc errors

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit a4d5269e6d0dba0c276c968448a3576f7604666a)

5 years agoNISTZ256: set Z_is_one to boolean 0/1 as is customary.
Emilia Kasper [Mon, 27 Apr 2015 13:41:52 +0000 (15:41 +0200)]
NISTZ256: set Z_is_one to boolean 0/1 as is customary.

Cosmetic, no real effect.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 4446044a793a9103a4bc70c0214005e6a4463767)

5 years agoError checking and memory leak fixes in NISTZ256.
Emilia Kasper [Fri, 24 Apr 2015 14:53:30 +0000 (16:53 +0200)]
Error checking and memory leak fixes in NISTZ256.

Thanks to Brian Smith for reporting these issues.

Reviewed-by: Richard Levitte <levitte@openssl.org>
5 years agoFix error checking and memory leaks in NISTZ256 precomputation.
Emilia Kasper [Fri, 24 Apr 2015 13:38:24 +0000 (15:38 +0200)]
Fix error checking and memory leaks in NISTZ256 precomputation.

Thanks to Brian Smith for reporting these issues.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 53dd4ddf71ad79a64be934ca19445b1cf560adab)

5 years agoCorrectly set Z_is_one on the return value in the NISTZ256 implementation.
Emilia Kasper [Fri, 24 Apr 2015 13:19:15 +0000 (15:19 +0200)]
Correctly set Z_is_one on the return value in the NISTZ256 implementation.

Also add a few comments about constant-timeness.

Thanks to Brian Smith for reporting this issue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
5 years agoFix CRYPTO_strdup
Loganaden Velvindron [Wed, 22 Apr 2015 15:16:30 +0000 (16:16 +0100)]
Fix CRYPTO_strdup

The function CRYPTO_strdup (aka OPENSSL_strdup) fails to check the return
value from CRYPTO_malloc to see if it is NULL before attempting to use it.
This patch adds a NULL check.

RT3786

Signed-off-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 37b0cf936744d9edb99b5dd82cae78a7eac6ad60)

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 20d21389c8b6f5b754573ffb6a4dc4f3986f2ca4)

5 years agoRepair EAP-FAST session resumption
Emilia Kasper [Tue, 21 Apr 2015 16:12:58 +0000 (18:12 +0200)]
Repair EAP-FAST session resumption

EAP-FAST session resumption relies on handshake message lookahead
to determine server intentions. Commits
980bc1ec6114f5511b20c2e6ca741e61a39b99d6
and
7b3ba508af5c86afe43e28174aa3c53a0a24f4d9
removed the lookahead so broke session resumption.

This change partially reverts the commits and brings the lookahead back
in reduced capacity for TLS + EAP-FAST only. Since EAP-FAST does not
support regular session tickets, the lookahead now only checks for a
Finished message.

Regular handshakes are unaffected by this change.

Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 6e3d015363ed09c4eff5c02ad41153387ffdf5af)

5 years agoInitialize variable
Emilia Kasper [Tue, 14 Apr 2015 15:42:42 +0000 (17:42 +0200)]
Initialize variable

newsig may be used (freed) uninitialized on a malloc error.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 68249414405500660578b337f1c8dd5dd4bb5bcc)