For increments, the relaxed model is fine. For decrements, it's
recommended to use the acquire release model. We therefore go for the
latter.
Reviewed-by: Andy Polyakov <appro@openssl.org>
Addition was not preserving inputs' property of being fully reduced.
Thanks to Brian Smith for reporting this.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Addition was not preserving inputs' property of being fully reduced.
Thanks to Brian Smith for reporting this.
Reviewed-by: Rich Salz <rsalz@openssl.org>
The declaration of bio_type_lock is independent of no-sock so should not be
inside OPENSSL_NO_SOCK guards.
Reviewed-by: Richard Levitte <levitte@openssl.org>
The bound on log(2)/3 on the second line is incorrect and has an extra
zero compared to the divisions in the third line. log(2)/3 = 0.10034...
which is bounded by 0.101 and not 0.1001. The divisions actually
correspond to 0.101 which is fine. The third line also dropped a factor
of three.
The actual code appears to be fine. Just the comments are wrong.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
They may return if an SCT_signature struct is added in the future that
allows them to be refactored to conform to the i2d/d2i function signature
conventions.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Previously, if ct_v1_log_id_from_pkey failed, public_key would be freed by
CTLOG_free at the end of the function, and then again by the caller (who
would assume ownership was not transferred when CTLOG_new returned NULL).
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
SCT_verify is impossible to call through the public API (SCT_CTX_new() is
not part of the public API), so rename it to SCT_CTX_verify and move it
out of the public API.
SCT_verify_v1 is redundant, since SCT_validate does the same verification
(by calling SCT_verify) and more. The API is less confusing with a single
verification function (SCT_validate).
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Also, re-organize RSA check to use goto err.
Add a test case.
Try all checks, not just stopping at first (via Richard Levitte)
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
The variable 'buffer', allocated by EC_POINT_point2buf(), isn't
free'd on the success path.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Original strategy for page-walking was adjust stack pointer and then
touch pages in order. This kind of asks for double-fault, because
if touch fails, then signal will be delivered to frame above adjusted
stack pointer. But touching pages prior adjusting stack pointer would
upset valgrind. As compromise let's adjust stack pointer in pages,
touching top of the stack. This still asks for double-fault, but at
least prevents corruption of neighbour stack if allocation is to
overstep the guard page.
Also omit predict-non-taken hints as they reportedly trigger illegal
instructions in some VM setups.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Fix an off by one error in the overflow check added by 07bed46f33
("Check for errors in BN_bn2dec()").
Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Originally PKCS#12 subroutines treated password strings as ASCII.
It worked as long as they were pure ASCII, but if there were some
none-ASCII characters result was non-interoperable. But fixing it
poses problem accessing data protected with broken password. In
order to make asscess to old data possible add retry with old-style
password.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add mutable versions of X509_get0_notBefore and X509_get0_notAfter.
Rename X509_SIG_get0_mutable to X509_SIG_getm.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Since dasync isn't installed, and is only ever used as a dynamic
engine, there's no reason to consider it for initialization when
building static engines.
Reviewed-by: Ben Laurie <ben@openssl.org>
Constify X509_SIG_get0() and order arguments to mactch new standard.
Add X509_SIG_get0_mutable() to support modification or initialisation
of an X509_SIG structure.
Reviewed-by: Matt Caswell <matt@openssl.org>
The generated asm code from x86cpuid.pl contains CMOVE instructions
which are only available on i686 and later CPUs.
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1459)
Deprecate the function ASN1_STRING_data() and replace with a new function
ASN1_STRING_get0_data() which returns a constant pointer. Update library
to use new function.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Apply a limit to the maximum blob length which can be read in do_d2i_bio()
to avoid excessive allocation.
Thanks to Shi Lei for reporting this.
Reviewed-by: Rich Salz <rsalz@openssl.org>
If an oversize BIGNUM is presented to BN_bn2dec() it can cause
BN_div_word() to fail and not reduce the value of 't' resulting
in OOB writes to the bn_data buffer and eventually crashing.
Fix by checking return value of BN_div_word() and checking writes
don't overflow buffer.
Thanks to Shi Lei for reporting this bug.
CVE-2016-2182
Reviewed-by: Tim Hudson <tjh@openssl.org>
They may fail if they cannot increment the reference count of the
certificate they are storing a pointer for. They should return 0 if this
occurs.
Reviewed-by: Emilia Käsper <emilia@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1408)
Add encoded point ctrl support for other curves: this makes it possible
to handle X25519 and other EC curve point encoding in a similar way
for TLS.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Originally new-line was suppressed, because double new-line was
observed under wine. But it appears rather to be a wine bug,
because on real Windows new-line is much needed.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Problem was introduced in 299ccadcdb
as future extension, i.e. at this point it wasn't an actual problem,
because uninitialized capability bit was not actually used.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Commit 417be66 broken BIO_new_accept() by changing the definition of the
macro BIO_set_accept_port() which stopped acpt_ctrl() from calling
BIO_parse_hostserv(). This commit completes the series of changes
initiated in 417be66.
Updated pods to reflect new definition introduced by 417be66.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1386)
Add colon when printing Registered ID.
Remove extra space when printing DirName.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1401)
In one failure case, it used to return -1. That failure case
(CTLOG_new() returning NULL) was not usefully distinct from all of the
other failure cases.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1407)
This is an entirely useless function, given that CTLOG is publicly
immutable.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1406)
Because proxy certificates typically come without any CRL information,
trying to check revocation on them will fail. Better not to try
checking such information for them at all.
Reviewed-by: Rich Salz <rsalz@openssl.org>
extra spacing and 80 cols
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1366)
Some calls to RSA_get0_key had the parameters in the wrong order causing a
failure.
GitHub Issue #1368
Reviewed-by: Richard Levitte <levitte@openssl.org>
Windows never composes UTF-8 strings as result of user interaction
such as input query. The only way to compose one is programmatic
conversion from WCHAR string, which in turn can be picked up with
ReadConsoleW.
Reviewed-by: Richard Levitte <levitte@openssl.org>
8605abf135 fixed the nval leak, but it
used free instead of pop_free. nval owns its contents, so it should be
freed with pop_free. See the pop_free call a few lines down.
This is a no-op as, in this codepath, we must have nval == NULL or
sk_CONF_VALUE_num(nval) == 0. In those cases, free and pop_free are
identical. However, variables should be freed consistently.
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1351)
Remove current_method: it was intended as a means of retrying
lookups bit it was never used. Now that X509_verify_cert() is
a "one shot" operation it can never work as intended.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Simplify BIO init using OPENSSL_zalloc().
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1261)
This adds the functions X509_set_proxy_pathlen(), which sets the
internal pc path length cache for a given X509 structure, along with
X509_get_proxy_pathlen(), which retrieves it.
Along with the previously added X509_set_proxy_flag(), this provides
the tools needed to manipulate all the information cached on proxy
certificates, allowing external code to do what's necessary to have
them verified correctly by the libcrypto code.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Since there are a number of function pointers in X509_STORE that might
lead to user code, it makes sense for them to be able to lock the
store while they do their work.
Reviewed-by: Rich Salz <rsalz@openssl.org>
We only add setters for X509_STORE function pointers except for the
verify callback function. The thought is that the function pointers
in X509_STORE_CTX are a cache for the X509_STORE functions.
Therefore, it's preferable if the user makes the changes in X509_STORE
before X509_STORE_CTX_init is called, and otherwise use the verify
callback to override any results from OpenSSL's internal
calculations.
Reviewed-by: Rich Salz <rsalz@openssl.org>
simplify and reindent some related code.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1300)
This adds the function X509_set_proxy_flag(), which sets the internal flag
EXFLAG_PROXY on a given X509 structure.
Reviewed-by: Rich Salz <rsalz@openssl.org>
If two CRLs are equivalent then use the one with a later lastUpdate field:
this will result in the newest CRL available being used.
RT#4615
Reviewed-by: Rich Salz <rsalz@openssl.org>
TS_OBJ_print_bio() misuses OBJ_txt2obj: it should print the result
as a null terminated buffer. The length value returned is the total
length the complete text reprsentation would need not the amount of
data written.
CVE-2016-2180
Thanks to Shi Lei for reporting this bug.
Reviewed-by: Matt Caswell <matt@openssl.org>
llvm's ubsan reported:
runtime error: negation of -9223372036854775808 cannot be represented in type
'long'; cast to an unsigned type to negate this value to itself
Found using afl
Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #1325
To avoid having to immediately free up r/s when setting them
don't allocate them automatically in DSA_SIG_new() and ECDSA_SIG_new().
RT#4590
Reviewed-by: Richard Levitte <levitte@openssl.org>
Fix some indentation at the same time
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1292)
There are two failure cases for OCSP_request_add_id():
1. OCSP_ONEREQ_new() failure, where |cid| is not freed
2. sk_OCSP_ONEREQ_push() failure, where |cid| is freed
This changes makes the error behavior consistent, such that |cid| is
not freed when sk_OCSP_ONEREQ_push() fails. OpenSSL only takes
ownership of |cid| when the function succeeds.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1289)
In light of potential UKS (unknown key share) attacks on some
applications, primarily browsers, despite RFC761, name checks are
by default applied with DANE-EE(3) TLSA records. Applications for
which UKS is not a problem can optionally disable DANE-EE(3) name
checks via the new SSL_CTX_dane_set_flags() and friends.
Reviewed-by: Rich Salz <rsalz@openssl.org>
New hostname checking function asn1_valid_host()
Check commonName entries against nameConstraints: any CN components in
EE certificate which look like hostnames are checked against
nameConstraints.
Note that RFC5280 et al only require checking subject alt name against
DNS name constraints.
Reviewed-by: Richard Levitte <levitte@openssl.org>
We previously had a number of logical names for the different parts.
There's really no need for that, the default directories are in one
directory tree. So we only define OSSL$DATAROOT: and make everything
related to that one.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Commit aea145e removed some error codes that are generated
algorithmically: mapping alerts to error texts. Found by
Andreas Karlsson. This restores them, and adds two missing ones.
Reviewed-by: Matt Caswell <matt@openssl.org>
If application uses any of Windows-specific interfaces, make it
application developer's respondibility to include <windows.h>.
Rationale is that <windows.h> is quite "toxic" and is sensitive
to inclusion order (most notably in relation to <winsock2.h>).
It's only natural to give complete control to the application developer.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
The calls we made to it were redundant, as the same initialization is
done later in OPENSSL_init_crypto() anyway.
Reviewed-by: Rich Salz <rsalz@openssl.org>
