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David Benjamin 958aaf1ea1 Check for errors in BN_bn2dec() 
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

(Imported from upstream's e36f27ddb80a48e579783bc29fb3758988342b71.)

Change-Id: Ib9078921b4460952c4aa5a6b03ec39a03704bb90
Reviewed-on: https://boringssl-review.googlesource.com/10367
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-08-16 19:46:35 +00:00
.github Add a PULL_REQUEST_TEMPLATE. 2016-03-08 15:23:52 +00:00
crypto Check for errors in BN_bn2dec() 2016-08-16 19:46:35 +00:00
decrepit Make OBJ_NAME_do_all more OpenSSL-compatible. 2016-06-27 21:42:27 +00:00
fuzz Update fuzzing corpus for ‘server’ 2016-08-11 08:56:18 -07:00
include/openssl Delete d2i_ASN1_bytes and i2d_ASN1_bytes. 2016-08-16 19:45:13 +00:00
infra/config Commit-Queue config: effectively remove Andorid builders. 2016-07-26 13:14:47 +00:00
ssl Fix typo. 2016-08-16 18:05:47 +00:00
third_party/android-cmake Check in a copy of android-cmake. 2016-05-19 16:55:25 +00:00
tool Give bssl speed proper arg parsing and a -timeout flag. 2016-08-16 18:57:31 +00:00
util Fix up header file handling. 2016-08-01 18:38:22 +00:00
.clang-format Import `newhope' (post-quantum key exchange). 2016-04-26 22:53:59 +00:00
.gitignore Fix documentation generation on Windows. 2015-08-19 00:45:42 +00:00
API-CONVENTIONS.md Add an API-CONVENTIONS.md document. 2016-08-04 23:27:49 +00:00
BUILDING.md Document compiler and assembler requirements. 2016-06-10 17:17:09 +00:00
CMakeLists.txt Add top-level BUILD file (in util/). 2016-07-06 23:03:01 +00:00
codereview.settings No-op change to trigger the new Bazel bot. 2016-07-07 12:07:04 -07:00
CONTRIBUTING.md Add a CONTRIBUTING.md file. 2016-02-10 21:38:19 +00:00
FUZZING.md Replace base64 decoding. 2016-05-26 17:59:10 +00:00
INCORPORATING.md Remove backslash. 2016-07-07 21:39:44 +00:00
LICENSE Add some bug references to the LICENSE file. 2016-02-22 20:16:48 +00:00
PORTING.md Add a note in PORTING to ask us before adding ifdefs. 2016-08-11 15:48:14 +00:00
README.md Add an API-CONVENTIONS.md document. 2016-08-04 23:27:49 +00:00
STYLE.md Breaking news: 1998 has come and gone. 2016-07-11 23:51:47 +00:00

README.md

BoringSSL

BoringSSL is a fork of OpenSSL that is designed to meet Google's needs.

Although BoringSSL is an open source project, it is not intended for general use, as OpenSSL is. We don't recommend that third parties depend upon it. Doing so is likely to be frustrating because there are no guarantees of API or ABI stability.

Programs ship their own copies of BoringSSL when they use it and we update everything as needed when deciding to make API changes. This allows us to mostly avoid compromises in the name of compatibility. It works for us, but it may not work for you.

BoringSSL arose because Google used OpenSSL for many years in various ways and, over time, built up a large number of patches that were maintained while tracking upstream OpenSSL. As Google's product portfolio became more complex, more copies of OpenSSL sprung up and the effort involved in maintaining all these patches in multiple places was growing steadily.

Currently BoringSSL is the SSL library in Chrome/Chromium, Android (but it's not part of the NDK) and a number of other apps/programs.

There are other files in this directory which might be helpful: