Commit Graph

79 Commits

Author SHA1 Message Date
David Benjamin
ac6a84bc7a Always check that the value returned by asn1_do_adb() is non-NULL.
(Imported from upstream's a9b23465243b6d692bb0b419bdbe0b1f5a849e9c,
5e102f96eb6fcdba1db2dba41132f92fa492aea0, and
9bda72880113b2b2262d290b23bdd1d3b19ff5b3.)

Change-Id: Ib608acb86cc128cacf20811c21bf6b38b0520106
Reviewed-on: https://boringssl-review.googlesource.com/8944
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-07-26 22:41:51 +00:00
David Benjamin
abaef2e869 Fix omitted selector handling.
The selector field could be omitted because it has a DEFAULT value.
In this case *sfld == NULL (sfld can never be NULL). This was not
noticed because this was never used in existing ASN.1 modules.

(Imported from upstream's c4210673313482edacede58d92e92c213d7a181a.)

svaldez and I stared at this for a while and we believe this change is
correct. It's also irrelevant because our only remaining ADB (ANY
DEFINED BY) table is POLICYQUALINFO which does not allow its selector to
be omitted. Also, if it did, it would be a slight change in behavior.
We'd switch from using POLICYQUALINFO's default_tt (filling in an
ASN1_ANY) to its null_tt (which doesn't exist, so error).

Change-Id: If6a929e3dafca18431775b01958d0dae1c09f3b4
Reviewed-on: https://boringssl-review.googlesource.com/8943
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-07-26 20:01:37 +00:00
Adam Langley
10f97f3bfc Revert "Move C++ helpers into |bssl| namespace."
This reverts commit 09feb0f3d9.

(In order to make WebRTC happy this also needs to be reverted.)
2016-07-12 08:09:33 -07:00
Adam Langley
d2b5af56cf Revert scoped_types.h change.
This reverts commits:
8d79ed6740
19fdcb5234
8d79ed6740

Because WebRTC (at least) includes our headers in an extern "C" block,
which precludes having any C++ in them.

Change-Id: Ia849f43795a40034cbd45b22ea680b51aab28b2d
2016-07-12 08:05:38 -07:00
Adam Langley
8c3c3135a2 Remove scoped_types.h.
This change scatters the contents of the two scoped_types.h files into
the headers for each of the areas of the code. The types are now in the
|bssl| namespace.

Change-Id: I802b8de68fba4786b6a0ac1bacd11d81d5842423
Reviewed-on: https://boringssl-review.googlesource.com/8731
Reviewed-by: Adam Langley <agl@google.com>
2016-07-11 23:08:27 +00:00
Adam Langley
09feb0f3d9 Move C++ helpers into |bssl| namespace.
We currently have the situation where the |tool| and |bssl_shim| code
includes scoped_types.h from crypto/test and ssl/test. That's weird and
shouldn't happen. Also, our C++ consumers might quite like to have
access to the scoped types.

Thus this change moves some of the template code to base.h and puts it
all in a |bssl| namespace to prepare for scattering these types into
their respective headers. In order that all the existing test code be
able to access these types, it's all moved into the same namespace.

Change-Id: I3207e29474dc5fcc344ace43119df26dae04eabb
Reviewed-on: https://boringssl-review.googlesource.com/8730
Reviewed-by: David Benjamin <davidben@google.com>
2016-07-11 23:04:52 +00:00
David Benjamin
7af3140a82 Remove ASN.1 BIOs.
These are more remnants of CMS. Nothing uses them directly. Removing them means
more code we don't have to think about when importing upstream patches.

Also take out a bunch of dead prototypes nearby.

Change-Id: Ife094d9d2078570006d1355fa4e3323f435be608
Reviewed-on: https://boringssl-review.googlesource.com/8244
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-14 17:39:30 +00:00
David Benjamin
ae0bf3b7c1 Remove ASN1_parse and ASN1_parse_dump.
These are more pretty-printers for generic ASN.1 structures. They're never
called externally and otherwise are only used in the X509V3_EXT_PARSE_UNKNOWN
mode for the X509 pretty-print functions. That makes unknown extensions
pretty-print as ASN.1 structures.

This is a rather useless feature, so have that fall through to
X509V3_EXT_DUMP_UNKNOWN which does a hexdump instead.

(The immediate trigger is I don't know what |op| is in upstream's
8c918b7b9c93ba38790ffd1a83e23c3684e66f57 and don't think it is worth the time
to puzzle that out and verify it. Better ditch this code completely.)

Change-Id: I0217906367d83056030aea64ef344d4fedf74763
Reviewed-on: https://boringssl-review.googlesource.com/8243
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-14 17:39:17 +00:00
David Benjamin
e77b16ef71 Remove ASN.1 print hooks.
These functions are never instantiated. (They're a remnant of the PKCS#7 and
CMS bits.) Next time upstream touches this code, we don't have to puzzle
through the diff and import it.

Change-Id: I67c2102ae13e8e0527d858e1c63637dd442a4ffb
Reviewed-on: https://boringssl-review.googlesource.com/8242
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-14 17:38:31 +00:00
David Benjamin
0a45822afe Fix some missing inits
(Imported from upstream's f792c663048f19347a1bb72125e535e4fb2ecf39.)

Change-Id: If9bbb10de3ea858076bd9587d21ec331e837dd53
Reviewed-on: https://boringssl-review.googlesource.com/8171
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-06-07 22:05:10 +00:00
David Benjamin
f0bba61663 Fix ASN1_INTEGER handling.
Only treat an ASN1_ANY type as an integer if it has the V_ASN1_INTEGER
tag: V_ASN1_NEG_INTEGER is an internal only value which is never used
for on the wire encoding.

(Imported from upstream's d4b25980020821d4685752ecb9105c0902109ab5.)

This is redundant with our fb2c6f8c85 which I
think is a much better fix (having two notions of "type" depending on whether
we're in an ASN1_TYPE or an ASN1_STRING is fragile), so I think we should keep
our restriction too. Still, this is also worth doing.

Change-Id: I6ea54aae7b517a59c6e563d8c993d0ee22e25bee
Reviewed-on: https://boringssl-review.googlesource.com/7848
Reviewed-by: Adam Langley <agl@google.com>
2016-05-03 16:58:51 +00:00
David Benjamin
eb3257211e Don't free ret->data if malloc fails.
Issue reported by Guido Vranken.

(Imported from upstream's 64eaf6c928f4066d62aa86f805796ef05bd0b1cc.)

Change-Id: I99793abb4e1b5da5b70468b207ec03013fff674a
Reviewed-on: https://boringssl-review.googlesource.com/7843
Reviewed-by: Adam Langley <agl@google.com>
2016-05-03 16:36:04 +00:00
Steven Valdez
ede2e2c5ce Fix buffer overrun in ASN1_parse() and signed/unsigned warning.
(Imported from upstream's 2442382e11c022aaab4fdc6975bd15d5a75c4db2 and
0ca67644ddedfd656d43a6639d89a6236ff64652)

Change-Id: I601ef07e39f936e8f3e30412fd90cd339d712dc4
Reviewed-on: https://boringssl-review.googlesource.com/7742
Reviewed-by: David Benjamin <davidben@google.com>
2016-04-26 18:49:09 +00:00
Steven Valdez
14b07a02a6 Harden ASN.1 BIO handling of large amounts of data.
If the ASN.1 BIO is presented with a large length field read it in
chunks of increasing size checking for EOF on each read. This prevents
small files allocating excessive amounts of data.

CVE-2016-2109

Thanks to Brian Carpenter for reporting this issue.

(Imported from upstream's f32774087f7b3db1f789688368d16d917757421e)

Change-Id: Id1b0d4436c4879d0ba7d3b7482b937cafffa28f7
Reviewed-on: https://boringssl-review.googlesource.com/7741
Reviewed-by: David Benjamin <davidben@google.com>
2016-04-26 17:06:16 +00:00
Brian Smith
dc6c1b8381 Fix build when using Visual Studio 2015 Update 1.
Many of the compatibility issues are described at
https://msdn.microsoft.com/en-us/library/mt612856.aspx. The macros
that suppressed warnings on a per-function basis no longer work in
Update 1, so replace them with #pragmas. Update 1 warns when |size_t|
arguments to |printf| are casted, so stop doing that casting.
Unfortunately, this requires an ugly hack to continue working in
MSVC 2013 as MSVC 2013 doesn't support "%zu". Finally, Update 1 has new
warnings, some of which need to be suppressed.

---

Updated by davidben to give up on suppressing warnings in crypto/x509 and
crypto/x509v3 as those directories aren't changed much from upstream. In each
of these cases, upstream opted just blindly initialize the variable, so do the
same. Also switch C4265 to level 4, per Microsoft's recommendation and work
around a bug in limits.h that happens to get fixed by Google include order
style.

(limits.h is sensitive to whether corecrt.h, pulled in by stddef.h and some
other headers, is included before it. The reason it affected just one file is
we often put the file's header first, which means base.h is pulling in
stddef.h. Relying on this is ugly, but it's no worse than what everything else
is doing and this doesn't seem worth making something as tame as limits.h so
messy to use.)

Change-Id: I02d1f935356899f424d3525d03eca401bfa3e6cd
Reviewed-on: https://boringssl-review.googlesource.com/7480
Reviewed-by: David Benjamin <davidben@google.com>
2016-03-25 21:39:52 +00:00
Piotr Sikora
c6d3029eda Add missing internal includes.
Partially fixes build with -Wmissing-prototypes -Wmissing-declarations.

Change-Id: I51209c30f532899f57cfdd9a50cff0a8ee3da5b5
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Reviewed-on: https://boringssl-review.googlesource.com/7512
Reviewed-by: David Benjamin <davidben@google.com>
2016-03-20 16:38:54 +00:00
Piotr Sikora
9bb8ba6ba1 Make local functions static.
Partially fixes build with -Wmissing-prototypes -Wmissing-declarations.

Change-Id: I6048f5b7ef31560399b25ed9880156bc7d8abac2
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Reviewed-on: https://boringssl-review.googlesource.com/7511
Reviewed-by: David Benjamin <davidben@google.com>
2016-03-20 16:37:58 +00:00
David Benjamin
a2f2bc3a40 Align with upstream's error strings, take two.
I messed up a few of these.

ASN1_R_UNSUPPORTED_ALGORITHM doesn't exist. X509_R_UNSUPPORTED_ALGORITHM does
exist as part of X509_PUBKEY_set, but the SPKI parser doesn't emit this. (I
don't mind the legacy code having really weird errors, but since EVP is now
limited to things we like, let's try to keep that clean.) To avoid churn in
Conscrypt, we'll keep defining X509_R_UNSUPPORTED_ALGORITHM, but not actually
do anything with it anymore.  Conscrypt was already aware of
EVP_R_UNSUPPORTED_ALGORITHM, so this should be fine. (I don't expect
EVP_R_UNSUPPORTED_ALGORITHM to go away. The SPKI parsers we like live in EVP
now.)

A few other ASN1_R_* values didn't quite match upstream, so make those match
again. Finally, I got some of the rsa_pss.c values wrong. Each of those
corresponds to an (overly specific) RSA_R_* value in upstream. However, those
were gone in BoringSSL since even the initial commit. We placed the RSA <-> EVP
glue in crypto/evp (so crypto/rsa wouldn't depend on crypto/evp) while upstream
placed them in crypto/rsa.

Since no one seemed to notice the loss of RSA_R_INVALID_SALT_LENGTH, let's undo
all the cross-module errors inserted in crypto/rsa. Instead, since that kind of
specificity is not useful, funnel it all into X509_R_INVALID_PSS_PARAMETERS
(formerly EVP_R_INVALID_PSS_PARAMETERS, formerly RSA_R_INVALID_PSS_PARAMETERS).

Reset the error codes for all affected modules.

(That our error code story means error codes are not stable across this kind of
refactoring is kind of a problem. Hopefully this will be the last of it.)

Change-Id: Ibfb3a0ac340bfc777bc7de6980ef3ddf0a8c84bc
Reviewed-on: https://boringssl-review.googlesource.com/7458
Reviewed-by: Emily Stark (Dunn) <estark@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-03-15 16:02:12 +00:00
David Benjamin
fb8e678897 Match upstream's error codes for the old sigalg code.
People seem to condition on these a lot. Since this code has now been moved
twice, just make them all cross-module errors rather than leave a trail of
renamed error codes in our wake.

Change-Id: Iea18ab3d320f03cf29a64a27acca119768c4115c
Reviewed-on: https://boringssl-review.googlesource.com/7431
Reviewed-by: Emily Stark (Dunn) <estark@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-03-11 21:15:47 +00:00
David Benjamin
df1dc98409 Add a few more large tag tests to asn1_test.
While we're here, may as well test others.

Change-Id: I711528641a3f7dd035c696c3c1d6b035437c91cc
Reviewed-on: https://boringssl-review.googlesource.com/7239
Reviewed-by: Adam Langley <agl@google.com>
2016-02-29 21:29:59 +00:00
David Benjamin
fb2c6f8c85 ASN1_get_object should not accept large universal tags.
The high bits of the type get used for the V_ASN1_NEG bit, so when used with
ASN1_ANY/ASN1_TYPE, universal tags become ambiguous. This allows one to create
a negative zero, which should be impossible. Impose an upper bound on universal
tags accepted by crypto/asn1 and add a test.

BUG=590615

Change-Id: I363e01ebfde621c8865101f5bcbd5f323fb59e79
Reviewed-on: https://boringssl-review.googlesource.com/7238
Reviewed-by: Adam Langley <agl@google.com>
2016-02-29 21:17:19 +00:00
Adam Langley
7e8ed44013 Fix possible memory leak on BUF_MEM_grow_clean failure
(Imported from upstream's e9cf5f03666bb82f0184e4f013702d0b164afdca and
29305f4edc886db349f2beedb345f9dd93311c09)

Change-Id: I0fa019e9d337676a84a7a6c103d2c4e14e18aede
Reviewed-on: https://boringssl-review.googlesource.com/7240
Reviewed-by: David Benjamin <davidben@google.com>
2016-02-29 20:56:19 +00:00
Adam Langley
c4eec0c16b Fix encoding bug in i2c_ASN1_INTEGER
(Imported from upstream's 3661bb4e7934668bd99ca777ea8b30eedfafa871.)

Fix bug where i2c_ASN1_INTEGER mishandles zero if it is marked as
negative.

Thanks to Huzaifa Sidhpurwala <huzaifas@redhat.com> and Hanno Böck
<hanno@hboeck.de> for reporting this issue.

BUG=590615

Change-Id: I8959e8ae01510a5924862a3f353be23130eee554
Reviewed-on: https://boringssl-review.googlesource.com/7199
Reviewed-by: David Benjamin <davidben@google.com>
2016-02-29 20:07:03 +00:00
David Benjamin
f4e447c16d Move ASN1_bn_print to a static function in evp/print.c.
It's not used anywhere else, in the library or consumers (Google ones or
ones I could find on Debian codesearch). This is a sufficiently
specialized function that the risk of a third-party library newly
depending on it is low. This removes the last include of asn1.h or
x509.h in crypto/evp.

(This is almost entirely cosmetic because it wasn't keeping the static linker
from doing the right thing anyway. But if we were want to separate the legacy
ASN.1 stack into its own decrepit-like target, we'll need to be pickier about
separation.)

Change-Id: I9be97c9321572e3a2ed093e1d50036b7654cff41
Reviewed-on: https://boringssl-review.googlesource.com/7080
Reviewed-by: Adam Langley <agl@google.com>
2016-02-26 23:35:10 +00:00
Adam Langley
57707c70dc OpenSSL reformat x509/, x509v3/, pem/ and asn1/.
OpenSSL upstream did a bulk reformat. We still have some files that have
the old OpenSSL style and this makes applying patches to them more
manual, and thus more error-prone, than it should be.

This change is the result of running
  util/openssl-format-source -v -c .
in the enumerated directories. A few files were in BoringSSL style and
have not been touched.

This change should be formatting only; no semantic difference.

Change-Id: I75ced2970ae22b9facb930a79798350a09c5111e
Reviewed-on: https://boringssl-review.googlesource.com/6904
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2016-01-19 17:01:51 +00:00
David Benjamin
70ab223490 Remove ASN1_R_MALLOC_FAILURE.
There was a TODO to remove it once asn1_mac.h was trimmed. This has now
happened. Remove it and reset error codes for crypto/asn1.

Change-Id: Iaf2f3e75741914415372939471b135618910f95d
Reviewed-on: https://boringssl-review.googlesource.com/6761
Reviewed-by: Adam Langley <agl@google.com>
2015-12-22 00:12:24 +00:00
David Benjamin
c100ef4379 Limit depth of ASN1 parse printing.
(Imported from upstream's d88ef40a1e5c81d0d32b4a431e55f5456e678dd2 and
943c4ca62b3f5a160340d57aecb9413407a06e15.)

Change-Id: Idd52aebae6839695be0f3a8a7659adeec6650b98
Reviewed-on: https://boringssl-review.googlesource.com/6556
Reviewed-by: Adam Langley <agl@google.com>
2015-12-15 19:06:04 +00:00
David Benjamin
cb852981cd Fix leak with ASN.1 combine.
When parsing a combined structure pass a flag to the decode routine
so on error a pointer to the parent structure is not zeroed as
this will leak any additional components in the parent.

This can leak memory in any application parsing PKCS#7 or CMS structures.

CVE-2015-3195.

Thanks to Adam Langley (Google/BoringSSL) for discovering this bug using
libFuzzer.

PR#4131

(Imported from upstream's cc598f321fbac9c04da5766243ed55d55948637d, with test
from our original report. Verified ASan trips up on the test without the fix.)

Change-Id: I007d93f172b2f16bf6845d685d72717ed840276c
Reviewed-on: https://boringssl-review.googlesource.com/6615
Reviewed-by: Adam Langley <agl@google.com>
2015-12-03 16:43:34 +00:00
David Benjamin
20c373118c Become partially -Wmissing-variable-declarations-clean.
There's a few things that will be kind of a nuisance and possibly not worth it
(crypto/asn1 dumps a lot of undeclared things, etc.). But it caught some
mistakes. Even without the warning, making sure to include the externs before
defining a function helps catch type mismatches.

Change-Id: I3dab282aaba6023e7cebc94ed7a767a5d7446b08
Reviewed-on: https://boringssl-review.googlesource.com/6484
Reviewed-by: Adam Langley <agl@google.com>
2015-11-12 20:09:20 +00:00
Adam Langley
d9e817309a Fix several warnings that arise in Android.
Android is now using Ninja so it doesn't spew so much to the terminal
and thus any warnings in BoringSSL (which builds really early in the
process) and much more obvious.

Thus this change fixes a few warnings that appear in the Android build.

Change-Id: Id255ace90fece772a1c3a718c877559ce920b960
Reviewed-on: https://boringssl-review.googlesource.com/6400
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-10-30 21:11:48 +00:00
David Benjamin
15e4deb165 d2i: don't update input pointer on failure
(Imported from upstream's 728bcd59d3d41e152aead0d15acc51a8958536d3.)

Actually this one was reported by us, but the commit message doesn't
mention this.

This is slightly modified from upstream's version to fix some problems
noticed in import. Specifically one of d2i_X509_AUX's success paths is
bust and d2i_PrivateKey still updates on one error path. Resolve the
latter by changing both it and d2i_AutoPrivateKey to explicitly hit the
error path on ret == NULL. This lets us remove the NULL check in
d2i_AutoPrivateKey.

We'll want to report the problems back upstream.

Change-Id: Ifcfc965ca6d5ec0a08ac154854bd351cafbaba25
Reviewed-on: https://boringssl-review.googlesource.com/5948
Reviewed-by: Adam Langley <agl@google.com>
2015-09-28 22:15:17 +00:00
David Benjamin
ba13402c1b Fix the type of ASN1_i2d_bio's last argument.
It's supposed to be void*. The only reason this was working was that it was
only called in C which happily casts from void* to T*. (But if called in C++ in
a macro, it breaks.)

Change-Id: I7f765c3572b9b4815ae58da852be1e742de1bd96
Reviewed-on: https://boringssl-review.googlesource.com/5760
Reviewed-by: Adam Langley <agl@google.com>
2015-08-28 22:03:54 +00:00
Adam Langley
73415b6aa0 Move arm_arch.h and fix up lots of include paths.
arm_arch.h is included from ARM asm files, but lives in crypto/, not
openssl/include/. Since the asm files are often built from a different
location than their position in the source tree, relative include paths
are unlikely to work so, rather than having crypto/ be a de-facto,
second global include path, this change moves arm_arch.h to
include/openssl/.

It also removes entries from many include paths because they should be
needed as relative includes are always based on the locations of the
source file.

Change-Id: I638ff43d641ca043a4fc06c0d901b11c6ff73542
Reviewed-on: https://boringssl-review.googlesource.com/5746
Reviewed-by: Adam Langley <agl@google.com>
2015-08-26 01:57:59 +00:00
David Benjamin
3570d73bf1 Remove the func parameter to OPENSSL_PUT_ERROR.
Much of this was done automatically with
  find . -name '*.c' | xargs sed -E -i '' -e 's/(OPENSSL_PUT_ERROR\([a-zA-Z_0-9]+, )[a-zA-Z_0-9]+, ([a-zA-Z_0-9]+\);)/\1\2/'
  find . -name '*.c' | xargs sed -E -i '' -e 's/(OPENSSL_PUT_ERROR\([a-zA-Z_0-9]+, )[a-zA-Z_0-9]+,  ([a-zA-Z_0-9]+\);)/\1\2/'

BUG=468039

Change-Id: I4c75fd95dff85ab1d4a546b05e6aed1aeeb499d8
Reviewed-on: https://boringssl-review.googlesource.com/5276
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:02:37 +00:00
David Benjamin
34248d4cb7 Get rid of err function codes.
Running make_errors.go every time a function is renamed is incredibly
tedious. Plus we keep getting them wrong.

Instead, sample __func__ (__FUNCTION__ in MSVC) in the OPENSSL_PUT_ERROR macro
and store it alongside file and line number. This doesn't change the format of
ERR_print_errors, however ERR_error_string_n now uses the placeholder
"OPENSSL_internal" rather than an actual function name since that only takes
the uint32_t packed error code as input.

This updates err scripts to not emit the function string table. The
OPENSSL_PUT_ERROR invocations, for now, still include the extra
parameter. That will be removed in a follow-up.

BUG=468039

Change-Id: Iaa2ef56991fb58892fa8a1283b3b8b995fbb308d
Reviewed-on: https://boringssl-review.googlesource.com/5275
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:02:08 +00:00
Adam Langley
0da323a8b8 Convert reference counts in crypto/
This change converts the reference counts in crypto/ to use
|CRYPTO_refcount_t|. The reference counts in |X509_PKEY| and |X509_INFO|
were never actually used and so were dropped.

Change-Id: I75d572cdac1f8c1083c482e29c9519282d7fd16c
Reviewed-on: https://boringssl-review.googlesource.com/4772
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:15:26 +00:00
David Benjamin
5c20c444c4 Don't set *pval to NULL in asn1_item_ex_combine_new.
While *pval is usually a pointer in rare circumstances it can be a long
value. One some platforms (e.g. WIN64) where
sizeof(long) < sizeof(ASN1_VALUE *) this will write past the field.

*pval is initialised correctly in the rest of ASN1_item_ex_new so setting it
to NULL is unecessary anyway.

Thanks to Julien Kauffmann for reporting this issue.

(Imported from upstream's f617b4969a9261b9d7d381670aefbe2cf766a2cb.)

Change-Id: I8cc777f7ab126dcef3a0278a82d3fc91faf4c231
Reviewed-on: https://boringssl-review.googlesource.com/4510
Reviewed-by: Adam Langley <agl@google.com>
2015-05-04 22:54:51 +00:00
David Benjamin
c85573ccd8 Ensure BN_asc2bn, BN_dec2bn, and BN_hex2bn never give -0.
See upstream's a0eed48d37a4b7beea0c966caf09ad46f4a92a44. Rather than import
that, we should just ensure neg + zero isn't a possible state.

Add some tests for asc2bn and dec2bn while we're here. Also fix a bug with
dec2bn where it doesn't actually ignore trailing data as it's supposed to.

Change-Id: I2385b67b740e57020c75a247bee254085ab7ce15
Reviewed-on: https://boringssl-review.googlesource.com/4484
Reviewed-by: Adam Langley <agl@google.com>
2015-04-23 20:53:24 +00:00
Brian Smith
054e682675 Eliminate unnecessary includes from low-level crypto modules.
Beyond generally eliminating unnecessary includes, eliminate as many
includes of headers that declare/define particularly error-prone
functionality like strlen, malloc, and free. crypto/err/internal.h was
added to remove the dependency on openssl/thread.h from the public
openssl/err.h header. The include of <stdlib.h> in openssl/mem.h was
retained since it defines OPENSSL_malloc and friends as macros around
the stdlib.h functions. The public x509.h, x509v3.h, and ssl.h headers
were not changed in order to minimize breakage of source compatibility
with external code.

Change-Id: I0d264b73ad0a720587774430b2ab8f8275960329
Reviewed-on: https://boringssl-review.googlesource.com/4220
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:49:18 +00:00
Brian Smith
a039d70270 Enable MSVC warning C4701, use of potentially uninitialized variable.
C4701 is "potentially uninitialized local variable 'buf' used". It
sometimes results in false positives, which can now be suppressed
using the macro OPENSSL_SUPPRESS_POTENTIALLY_UNINITIALIZED_WARNINGS.

Change-Id: I15068b5a48e1c704702e7752982b9ead855e7633
Reviewed-on: https://boringssl-review.googlesource.com/3160
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:32:26 +00:00
David Benjamin
2f18c1babb Prune away (almost) all of asn1_mac.h
Amazingly, asn1_GetSequence isn't completely unused? Keep that around for now
and ditch everything else. This lets us enable C4311 in MSVC which is actually
a pretty reasonable warning.

Change-Id: I43bb9206b1745e8a68224f3a435713d2a74e04ea
Reviewed-on: https://boringssl-review.googlesource.com/4256
Reviewed-by: Adam Langley <agl@google.com>
2015-04-08 20:42:57 +00:00
Håvard Molland
ab2479a08a Clean up error reporting.
Quite a few functions reported wrong function names when pushing
to the error stack.

Change-Id: I84d89dbefd2ecdc89ffb09799e673bae17be0e0f
Reviewed-on: https://boringssl-review.googlesource.com/4080
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-03-20 22:12:59 +00:00
David Benjamin
7a8e62dbd9 Fix ASN1_TYPE_cmp
Fix segmentation violation when ASN1_TYPE_cmp is passed a boolean type. This
can be triggered during certificate verification so could be a DoS attack
against a client or a server enabling client authentication.

CVE-2015-0286

(Imported from upstream's e677e8d13595f7b3287f8feef7676feb301b0e8a.)

Change-Id: I5faefc190568504bb5895ed9816a6d80432cfa45
Reviewed-on: https://boringssl-review.googlesource.com/4048
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 19:48:41 +00:00
David Benjamin
c12d377e24 Free up ADB and CHOICE if already initialised.
CVE-2015-0287

(Imported from upstream's b485d976340d3ca080060c3c7dee9102e2200762.)

Change-Id: Ie8dac46ccc95a4eee9ef535d8620217202f13ca1
Reviewed-on: https://boringssl-review.googlesource.com/4046
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 19:42:27 +00:00
David Benjamin
506fa4f770 Allocate string types directly.
Allocate and free ASN.1 string types directly instead of going through
the ASN.1 item code.

(Imported from upstream's 3d6aa6d441fe8124d247dffee5c68c2e5efd8258.)

Change-Id: I617283e67071a792f219ed08f19078afc223e2f5
Reviewed-on: https://boringssl-review.googlesource.com/4041
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 11:47:52 +00:00
David Benjamin
cdcecf546b Fix regression in ASN1_UTCTIME_cmp_time_t
Previously, ASN1_UTCTIME_cmp_time_t would return 1 if s > t, -1 if
s < t, and 0 if s == t.

This behavior was broken in upstream's
904348a4922333106b613754136305db229475ea, resulting in the opposite time
comparison behavior.

PR#3706

(Imported from upstream's da27006df06853a33b132133699a7aa9d4277920.)

Change-Id: I9c1c28ba21d82ff4b587e33b262f46be4e846ff9
Reviewed-on: https://boringssl-review.googlesource.com/4043
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 11:36:10 +00:00
David Benjamin
34860739de ASN.1 print fix.
When printing out an ASN.1 structure, if the type is an item template don't
fall through and attempt to interpret as a primitive type.

(Imported from upstream's 5dc1247a7494f50c88ce7492518bbe0ce6f124fa.)

Change-Id: Ica39757792cbf3f83879953b67838927ddbdb809
Reviewed-on: https://boringssl-review.googlesource.com/4009
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 11:32:45 +00:00
David Benjamin
a9c6667cab Fix asn1_item_print_ctx
The call to asn1_do_adb can return NULL on error, so we should check the
return value before attempting to use it.

(Imported from upstream's 34a7ed0c39aa3ab67eea1e106577525eaf0d7a00.)

Change-Id: Ia43cdc73b5f1d16e6fc907b5aaf13c9df5a9958c
Reviewed-on: https://boringssl-review.googlesource.com/4007
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 11:28:48 +00:00
David Benjamin
e30f3fb080 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.

(Imported from upstream's 9e488fd6ab2c295941e91a47ab7bcd346b7540c7)

Change-Id: Icbb13cd00d0ec5529871b678b0bcc465956a7572
Reviewed-on: https://boringssl-review.googlesource.com/4006
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 11:11:04 +00:00
David Benjamin
3305858342 Fix wrong numbers being passed as string lengths
(Imported from upstream's 0b142f022e2c5072295e00ebc11c5b707a726d74.)

Modified further because these ought to just be BIO_puts.

Change-Id: I8b70d70d0f626bb19b455adb4f0e08bacf453c1d
Reviewed-on: https://boringssl-review.googlesource.com/4002
Reviewed-by: Adam Langley <agl@google.com>
2015-03-19 11:07:45 +00:00