RepoMirrors
/
openssh
mirror of git://anongit.mindrot.org/openssh.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

upstream rev 1.27: fix integer overflow. 

Cast bitcount to u_in64_t before bit shifting to prevent integer overflow
on 32bit platforms which cause incorrect results when adding a block
>=512M in size.  sha1 patch from ante84 at gmail.com via openssh github,
sha2 with djm@, ok tedu@
This commit is contained in:
Darren Tucker 2019-06-08 09:07:04 +10:00
parent 7689048e61
commit adcaf40fd0
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
openbsd-compat/sha1.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sha1.c,v 1.26 2015/09/11 09:18:27 guenther Exp $ */
/* $OpenBSD: sha1.c,v 1.27 2019/06/07 22:56:36 dtucker Exp $ */
/*
* SHA-1 in C
@ -131,7 +131,7 @@ SHA1Update(SHA1_CTX *context, const u_int8_t *data, size_t len)
size_t i, j;
j = (size_t)((context->count >> 3) & 63);
context->count += (len << 3);
context->count += ((u_int64_t)len << 3);
if ((j + len) > 63) {
(void)memcpy(&context->buffer[j], data, (i = 64-j));
SHA1Transform(context->state, context->buffer);