Merge pull request #5501 from Duncaen/libressl

libressl: add patch for CVE-2016-7056
This commit is contained in:
Enno Boland 2017-01-10 19:49:11 +01:00 committed by GitHub
commit 80a57e843a
2 changed files with 13 additions and 1 deletions

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@ -0,0 +1,12 @@
Avoid possible side-channel leak of ECDSA private keys when signing.
--- crypto/ecdsa/ecs_ossl.c
+++ crypto/ecdsa/ecs_ossl.c
@@ -141,6 +141,8 @@ ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *
if (BN_num_bits(k) <= BN_num_bits(order))
if (!BN_add(k, k, order))
goto err;
+
+ BN_set_flags(k, BN_FLG_CONSTTIME);
/* compute r the x-coordinate of generator * k */
if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) {

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@ -1,7 +1,7 @@
# Template file for 'libressl'
pkgname=libressl
version=2.4.4
revision=1
revision=2
bootstrap=yes
build_style=gnu-configure
short_desc="Version of the TLS/crypto stack forked from OpenSSL"