Emilia Kasper [Sat, 14 Mar 2015 04:10:13 +0000 (21:10 -0700)]
Fix undefined behaviour in shifts.
Td4 and Te4 are arrays of u8. A u8 << int promotes the u8 to an int first then shifts.
If the mathematical result of a shift (as modelled by lhs * 2^{rhs}) is not representable
in an integer, behaviour is undefined. In other words, you can't shift into the sign bit
of a signed integer. Fix this by casting to u32 whenever we're shifting left by 24.
Matt Caswell [Wed, 11 Mar 2015 17:01:38 +0000 (17:01 +0000)]
SSL_check_chain fix
If SSL_check_chain is called with a NULL X509 object or a NULL EVP_PKEY
or the type of the public key is unrecognised then the local variable
|cpk| in tls1_check_chain does not get initialised. Subsequently an
attempt is made to deref it (after the "end" label), and a seg fault will
result.
Matt Caswell [Wed, 11 Mar 2015 20:19:08 +0000 (20:19 +0000)]
Fix dsa_pub_encode
The return value from ASN1_STRING_new() was not being checked which could
lead to a NULL deref in the event of a malloc failure. Also fixed a mem
leak in the error path.
Matt Caswell [Wed, 11 Mar 2015 20:08:16 +0000 (20:08 +0000)]
Fix dh_pub_encode
The return value from ASN1_STRING_new() was not being checked which could
lead to a NULL deref in the event of a malloc failure. Also fixed a mem
leak in the error path.
Matt Caswell [Wed, 11 Mar 2015 16:00:01 +0000 (16:00 +0000)]
ASN1_primitive_new NULL param handling
ASN1_primitive_new takes an ASN1_ITEM * param |it|. There are a couple
of conditional code paths that check whether |it| is NULL or not - but
later |it| is deref'd unconditionally. If |it| was ever really NULL then
this would seg fault. In practice ASN1_primitive_new is marked as an
internal function in the public header file. The only places it is ever
used internally always pass a non NULL parameter for |it|. Therefore, change
the code to sanity check that |it| is not NULL, and remove the conditional
checking.
Matt Caswell [Wed, 11 Mar 2015 15:41:52 +0000 (15:41 +0000)]
Fix EVP_DigestInit_ex with NULL digest
Calling EVP_DigestInit_ex which has already had the digest set up for it
should be possible. You are supposed to be able to pass NULL for the type.
However currently this seg faults.
Richard Godbee [Sun, 21 Sep 2014 06:14:11 +0000 (02:14 -0400)]
BIO_debug_callback: Fix output on 64-bit machines
BIO_debug_callback() no longer assumes the hexadecimal representation of
a pointer fits in 8 characters.
Signed-off-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 460e920d8a274e27aab36346eeda6685a42c3314)
Matt Caswell [Thu, 26 Feb 2015 11:56:00 +0000 (11:56 +0000)]
Prevent handshake with unseeded PRNG
Fix security issue where under certain conditions a client can complete a
handshake with an unseeded PRNG. The conditions are:
- Client is on a platform where the PRNG has not been seeded, and the
user has not seeded manually
- A protocol specific client method version has been used (i.e. not
SSL_client_methodv23)
- A ciphersuite is used that does not require additional random data
from the PRNG beyond the initial ClientHello client random
(e.g. PSK-RC4-SHA)
If the handshake succeeds then the client random that has been used will
have been generated from a PRNG with insufficient entropy and therefore
the output may be predictable.
For example using the following command with an unseeded openssl will
succeed on an unpatched platform:
Dmitry-Me [Sun, 1 Jun 2014 17:30:52 +0000 (21:30 +0400)]
Fix wrong numbers being passed as string lengths
Signed-off-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 0b142f022e2c5072295e00ebc11c5b707a726d74)
David Woodhouse [Mon, 2 Mar 2015 16:20:15 +0000 (16:20 +0000)]
Wrong SSL version in DTLS1_BAD_VER ClientHello
Since commit 741c9959 ("DTLS revision."), we put the wrong protocol
version into our ClientHello for DTLS1_BAD_VER. The old DTLS
code which used ssl->version was replaced by the more generic SSL3 code
which uses ssl->client_version. The Cisco ASA no longer likes our
ClientHello.
Matt Caswell [Mon, 2 Mar 2015 14:34:19 +0000 (14:34 +0000)]
Fix DTLS1_BAD_VER regression
Commit 9cf0f187 in HEAD, and 68039af3 in 1.0.2, removed a version check
from dtls1_buffer_message() which was needed to distinguish between DTLS
1.x and Cisco's pre-standard version of DTLS (DTLS1_BAD_VER).
Based on an original patch by David Woodhouse <dwmw2@infradead.org>
RT#3703
Matt Caswell [Thu, 26 Feb 2015 10:35:50 +0000 (10:35 +0000)]
Fix evp_extra_test.c with no-ec
When OpenSSL is configured with no-ec, then the new evp_extra_test fails to
pass. This change adds appropriate OPENSSL_NO_EC guards around the code.
Matt Caswell [Wed, 25 Feb 2015 15:25:27 +0000 (15:25 +0000)]
Update the SHA* documentation
Updates to include SHA224, SHA256, SHA384 and SHA512. In particular note
the restriction on setting md to NULL with regards to thread safety.
Edgar Pek [Sat, 21 Feb 2015 13:56:41 +0000 (14:56 +0100)]
Fix null-pointer dereference
Signed-off-by: Kurt Roeckx <kurt@roeckx.be> Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit bcfa19a8d19506c26b5f8d9d9934ca2aa5f96b43)
Richard Levitte [Sun, 22 Feb 2015 07:27:36 +0000 (08:27 +0100)]
Restore -DTERMIO/-DTERMIOS on Windows platforms.
The previous defaulting to TERMIOS took away -DTERMIOS / -DTERMIO a
bit too enthusiastically. Windows/DOSish platforms of all sorts get
identified as OPENSSL_SYS_MSDOS, and they get a different treatment
altogether UNLESS -DTERMIO or -DTERMIOS is explicitely given with the
configuration. The answer is to restore those macro definitions for
the affected configuration targets.
Richard Levitte [Thu, 12 Feb 2015 10:41:48 +0000 (11:41 +0100)]
Assume TERMIOS is default, remove TERMIO on all Linux.
The rationale for this move is that TERMIOS is default, supported by
POSIX-1.2001, and most definitely on Linux. For a few other systems,
TERMIO may still be the termnial interface of preference, so we keep
-DTERMIO on those in Configure.
crypto/ui/ui_openssl.c is simplified in this regard, and will define
TERMIOS for all systems except a select few exceptions. Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 64e6bf64b36136d487e2fbf907f09612e69ae911)
Eric Dequin [Thu, 12 Feb 2015 15:44:30 +0000 (10:44 -0500)]
Missing OPENSSL_free on error path.
Reviewed-by: Andy Polyakov <appro@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 1d2932de4cefcc200f175863a42c311916269981)
Emilia Kasper [Thu, 5 Feb 2015 15:38:54 +0000 (16:38 +0100)]
Fix hostname validation in the command-line tool to honour negative return values.
Specifically, an ASN.1 NumericString in the certificate CN will fail UTF-8 conversion
and result in a negative return value, which the "x509 -checkhost" command-line option
incorrectly interpreted as success.
Also update X509_check_host docs to reflect reality.
Thanks to Sean Burford (Google) for reporting this issue.
Free up bio_err after memory leak data has been printed to it.
In int_free_ex_data if ex_data is NULL there is nothing to free up
so return immediately and don't reallocate it. Reviewed-by: Tim Hudson <tjh@openssl.org>
(cherry picked from commit 9c7a780bbebc1b6d87dc38a6aa3339033911a8bb)
Matt Caswell [Mon, 26 Jan 2015 16:46:49 +0000 (16:46 +0000)]
Remove explicit setting of read_ahead for DTLS. It never makes sense not to
use read_ahead with DTLS because it doesn't work. Therefore read_ahead needs
to be the default.
Rich Salz [Mon, 26 Jan 2015 02:12:01 +0000 (21:12 -0500)]
Make OPENSSL_config truly ignore errors.
Per discussion: should not exit. Should not print to stderr.
Errors are ignored. Updated doc to reflect that, and the fact
that this function is to be avoided.
Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(cherry picked from commit abdd677125f3a9e3082f8c5692203590fdb9b860)
Rob Stradling [Thu, 22 Jan 2015 12:18:30 +0000 (12:18 +0000)]
Use inner algorithm when printing certificate.
Reviewed-by: Stephen Henson <steve@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 004efdbb41f731d36bf12d251909aaa08704a756)
Matt Caswell [Mon, 5 Jan 2015 11:30:03 +0000 (11:30 +0000)]
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)