tree 75f4dad053526ab75d1780737d5842dbd6ec1342
parent 9f69f139ed1088daabb6525f0c9c34d1e89688f7
author David Benjamin <davidben@google.com> 1512662856 -0500
committer David Benjamin <davidben@google.com> 1512674161 +0000

bn/asm/rsaz-avx2.pl: fix digit correction bug in rsaz_1024_mul_avx2.

Credit to OSS-Fuzz for finding this.

CVE-2017-3738

(Imported from upstream's 5630661aecbea5fe3c4740f5fea744a1f07a6253 and
77d75993651b63e872244a3256e37967bb3c3e9e.)

Confirmed with Intel SDE that the fix makes the test vector pass and
that, without the fix, the test vector does not. (Well, we knew the
latter already, since it was our test vector.)

(cherry-picked from 296a61d6007688a1472798879b81517920e35dff)

Change-Id: I167aa3407ddab3b434bacbd18e099c55aa40ac4c
Reviewed-on: https://boringssl-review.googlesource.com/23884
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-on: https://boringssl-review.googlesource.com/23924