Commit graph

2978 commits

Author SHA1 Message Date
Matt Caswell
5ee289eaf6 Fix memory leaks in the Certificate extensions code
After collecting extensions we must free them again.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2284)
2017-01-25 14:54:54 +00:00
FdaSilvaYY
0fe2a0af89 Fix a few double ;
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1618)
2017-01-25 09:06:34 +00:00
FdaSilvaYY
3e6c1da822 Typo, fix a comment
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1618)
2017-01-25 09:06:34 +00:00
FdaSilvaYY
48722ff5f0 Fix a few misspellings.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1618)
2017-01-25 09:06:34 +00:00
Todd Short
9d6fcd4295 Cleanup EVP_CIPH/EP_CTRL duplicate defines
Remove duplicate defines from EVP source files.
Most of them were in evp.h, which is always included.
Add new ones evp_int.h
EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK is now always defined in evp.h, so
remove conditionals on it

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2201)
2017-01-24 18:47:10 +01:00
Benjamin Kaduk
f1429b85c5 Do not overallocate for tmp.ciphers_raw
Well, not as much, at least.

Commit 07afdf3c3a changed things so
that for SSLv2 format ClientHellos we store the cipher list in the
TLS format, i.e., with two bytes per cipher, to be consistent with
historical behavior.

However, the space allocated for the array still performed the computation
with three bytes per cipher, a needless over-allocation (though a relatively
small one, all things considered).

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2281)
2017-01-24 17:02:12 +00:00
Matt Caswell
07afdf3c3a Fix SSL_get0_raw_cipherlist()
SSL_get0_raw_cipherlist() was a little too "raw" in the case of an SSLv2
compat ClientHello. In 1.0.2 and below, during version negotiation, if
we received an SSLv2 compat ClientHello but actually wanted to do SSLv3+
then we would construct a "fake" SSLv3+ ClientHello. This "fake" ClientHello
would have its ciphersuite list converted to the SSLv3+ format. It was
this "fake" raw list that got saved away to later be returned by a call to
SSL_get0_raw_cipherlist().

In 1.1.0+ version negotiation works differently and we process an SSLv2
compat ClientHello directly without the need for an intermediary "fake"
ClientHello. This meant that the raw ciphersuite list being saved was in
the SSLv2 format. Any caller of this function would not expect that and
potentially overread the returned buffer by one byte.

Fixes #2189

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2280)
2017-01-24 14:26:34 +00:00
Bernd Edlinger
38088ce993 Fix a ssl session leak due to OOM in lh_SSL_SESSION_insert
- s == NULL can mean c is a new session *or* lh_insert was
  unable to create a hash entry.
- use lh_SSL_SESSION_retrieve to check for this error condition.
- If it happens simply remove the extra reference again.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2138)
2017-01-24 15:05:12 +01:00
Andy Polyakov
8f77fab824 Replace div-spoiler hack with simpler code
This comes from a comment in GH issue #1027. Andy wrote the code,
Rich made the PR.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2253)
2017-01-23 11:19:45 -05:00
Cory Benfield
2faa1b48fd Add support for key logging callbacks.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1646)
2017-01-23 17:07:43 +01:00
Matt Caswell
23573051a5 Stop server from expecting Certificate message when not requested
In a non client-auth renegotiation where the original handshake *was*
client auth, then the server will expect the client to send a Certificate
message anyway resulting in a connection failure.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1982)
2017-01-23 14:04:44 +00:00
Matt Caswell
10305baf26 Stop client from sending Certificate message when not requested
In a non client-auth renegotiation where the original handshake *was*
client auth, then the client will send a Certificate message anyway
resulting in a connection failure.

Fixes #1920

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1982)
2017-01-23 14:04:44 +00:00
Matt Caswell
a03a9dbe2a Fix SSL_VERIFY_CLIENT_ONCE
The flag SSL_VERIFY_CLIENT_ONCE is documented as follows:

  B<Server mode:> only request a client certificate on the initial TLS/SSL
  handshake. Do not ask for a client certificate again in case of a
  renegotiation. This flag must be used together with SSL_VERIFY_PEER.

  B<Client mode:> ignored

But the implementation actually did nothing. After the server sends its
ServerKeyExchange message, the code was checking s->session->peer to see if
it is NULL. If it was set then it did not ask for another client
certificate. However s->session->peer will only be set in the event of a
resumption, but a ServerKeyExchange message is only sent in the event of a
full handshake (i.e. no resumption).

The documentation suggests that the original intention was for this to
have an effect on renegotiation, and resumption doesn't come into it.

The fix is to properly check for renegotiation, not whether there is already
a client certificate in the session.

As far as I can tell this has been broken for a *long* time.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1982)
2017-01-23 14:04:44 +00:00
Bernd Edlinger
a6fd7c1dbe fix a memory leak in ssl3_generate_key_block fix the error handling in ssl3_change_cipher_state
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2164)
2017-01-23 11:41:59 +01:00
Rich Salz
3e37351834 If client doesn't send curves list, don't assume all.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1597)
2017-01-18 12:24:28 -05:00
Matt Caswell
e3bc1305ec Fix compilation with no-nextprotoneg
A guard was in the wrong place in the header file.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2212)
2017-01-11 17:51:51 +00:00
Matt Caswell
5eeb6c6e56 Fix no-ec following sigalgs refactor
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:51 +00:00
Matt Caswell
7a531ee460 Fix tls1_set_sigalgs() length calculation
The length passed to tls1_set_sigalgs() is a multiple of two and there are
two char entries in the list for each sigalg. When we set
client_sigalgslen or conf_sigalgslen this is the number of ints in the list
where there is one entry per sigalg (i.e. half the length of the list passed
to the function).

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:51 +00:00
Matt Caswell
42ab223000 Add some missing sigalgs
The SHA1 sigalgs were inadvertently missed off in the sigalgs refactor.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:51 +00:00
Matt Caswell
0cc092f8a3 Fix an uninit read picked up by Travis
The siglen value needs to be initialised prior to it being read in the
call to EVP_DigestSignFinal later in this function.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:51 +00:00
Matt Caswell
1b520cbb6a Fix a Travis failure
Declare a variable as static to silence the warning

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
7842505190 Teach SSL_trace about the new sigalgs
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
fe3066ee40 Extend PSS signature support to TLSv1.2
TLSv1.3 introduces PSS based sigalgs. Offering these in a TLSv1.3 client
implies that the client is prepared to accept these sigalgs even in
TLSv1.2.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
d24c6a34ce Always use TLSv1.0 for record layer version in TLSv1.3
TLSv1.3 freezes the record layer version and ensures that it is always set
to TLSv1.0. Some implementations check this.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
710eb47fdd Add a TLS1.3 TODO for setting of sig algs
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
523fb3233a Ignore PKCS1 based sig algs in TLSv1.3
In TLSv1.3 we must use PSS based sig algs for RSA signing. Ignore any
shared sig algs which are PKCS1 based.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
0490431272 Verify that the sig algs extension has been sent for TLSv1.3
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
ace081c1ed Fix client application traffic secret
A misreading of the TLS1.3 spec meant we were using the handshake hashes
up to and including the Client Finished to calculate the client
application traffic secret. We should be only use up until the Server
Finished.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
4954fd13b3 Temporarily ignore NewSessionTickets for TLS1.3
We can't handle these messages yet, so ignore them for now.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
6612d87b89 Use the correct size for TLSv1.3 finished keys
We need to use the length of the handshake hash for the length of the
finished key.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
ac77aa9a1c Ensure the record sequence number gets incremented
We were not incrementing the sequence number every time we sent/received
a record.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
63c1df0983 Remove some unneeded functions
The sigalgs work has made some old lookup tables and functions redundant
so remove them.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
536199ece0 Use NIDs instead of the old TLSv1.2 sigalgs hash and sig ids
We had an extra layer of indirection in looking up hashes and sigs based
on sigalgs which is now no longer necessary. This removes it.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
2ec6cb3385 Remove a redundant function
The extensions refactor made this function redundant so we can remove it.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
703bcee021 Convert Sigalgs processing to use ints
In TLSv1.2 an individual sig alg is represented by 1 byte for the hash
and 1 byte for the signature. In TLSv1.3 each sig alg is represented by
two bytes, where the two bytes together represent a single hash and
signature combination. This converts the internal representation of sigalgs
to use a single int for the pair, rather than a pair of bytes.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
5f9b64a2fd Sign CertificateVerify messages using PSS padding
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
2c5dfdc357 Make CertificateVerify TLS1.3 aware
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
d8bc139978 Move Certificate Verify construction and processing into statem_lib.c
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
3f305a80e9 Add a TODO(TLS1.3) around certificate selection
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2157)
2017-01-10 23:02:50 +00:00
Matt Caswell
290a0419f0 Mark a HelloRequest record as read if we ignore it
Otherwise the client will try to process it again. The second time around
it will try and move the record data into handshake fragment storage and
realise that there is no data left. At that point it marks it as read
anyway. However, it is a bug that we go around the loop a second time, so
we prevent that.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2200)
2017-01-10 12:30:15 +00:00
Rich Salz
1ed327f7df Review comments
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2052)
2017-01-09 22:26:47 -05:00
Rich Salz
8cbfcc70bf Use typedefs for PSK, NPN, ALPN callback functions
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2052)
2017-01-09 22:26:47 -05:00
Rich Salz
aff8c126fd Move extension data into sub-structs
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2052)
2017-01-09 22:26:47 -05:00
Matt Caswell
d805a57be2 Fix various style issues following feedback
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2020)
2017-01-06 11:01:14 +00:00
Matt Caswell
8521ced616 Rename the chain variable to chainidx
This variable represents the index of the cert within the chain, so give it
a name that better represents that.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2020)
2017-01-06 10:25:14 +00:00
Matt Caswell
3dd826b879 Fix a double blank line style issue
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2020)
2017-01-06 10:25:13 +00:00
Matt Caswell
0baed5e90b Initialise the al variable
al can be used uninitialised in an error path.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2020)
2017-01-06 10:25:13 +00:00
Matt Caswell
ac52c4be12 Update SSL_trace to understand TLSv1.3 Certificates
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2020)
2017-01-06 10:25:13 +00:00
Matt Caswell
f63e428872 Implement TLSv1.3 style CertificateStatus
We remove the separate CertificateStatus message for TLSv1.3, and instead
send back the response in the appropriate Certificate message extension.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2020)
2017-01-06 10:25:13 +00:00
Matt Caswell
e96e0f8e42 Create Certificate messages in TLS1.3 format
Also updates TLSProxy to be able to understand the format and parse the
contained extensions.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2020)
2017-01-06 10:25:13 +00:00