[Buildroot] [git commit branch/2018.05.x] libressl: security bump to version 2.7.4

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=48c5b3930d9968d5bdb3f4dcc7d5c18968a76a81
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2018.05.x

Fixes CVE-2018-0495: ECDSA signing side-channel attack.

Cc: Adam Duskett <aduskett at gmail.com>
Signed-off-by: Baruch Siach <baruch at tkos.co.il>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit b609ee33e1d2d37711722933bad279df3bed2786)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/libressl/libressl.hash | 2 +-
 package/libressl/libressl.mk   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/libressl/libressl.hash b/package/libressl/libressl.hash
index 53b7e0af59..111fe4feed 100644
--- a/package/libressl/libressl.hash
+++ b/package/libressl/libressl.hash
@@ -1,4 +1,4 @@
 # From https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/SHA256
-sha256 917a8779c342177ff3751a2bf955d0262d1d8916a4b408930c45cef326700995  libressl-2.7.2.tar.gz
+sha256 1e3a9fada06c1c060011470ad0ff960de28f9a0515277d7336f7e09362517da6  libressl-2.7.4.tar.gz
 # Locally computed
 sha256 5c63613f008f16a9c0025c096bbd736cecf720494d121b5c5203e0ec6e5955b1  COPYING
diff --git a/package/libressl/libressl.mk b/package/libressl/libressl.mk
index 1a1dda1000..35494c8239 100644
--- a/package/libressl/libressl.mk
+++ b/package/libressl/libressl.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBRESSL_VERSION = 2.7.2
+LIBRESSL_VERSION = 2.7.4
 LIBRESSL_SITE = https://ftp.openbsd.org/pub/OpenBSD/LibreSSL
 LIBRESSL_LICENSE = ISC (new additions), OpenSSL or SSLeay (original OpenSSL code)
 LIBRESSL_LICENSE_FILES = COPYING