[source] mbedtls: update to version 2.4.2

[LEDE Commits]

hauke pushed a commit to source.git, branch master:
https://git.lede-project.org/7b52278154fefe0a74399e1400724b6931f390ba

commit 7b52278154fefe0a74399e1400724b6931f390ba
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Mon Mar 13 20:04:32 2017 +0100

    mbedtls: update to version 2.4.2
    
    This fixes the following security problems:
    * CVE-2017-2784: Freeing of memory allocated on stack when validating a public key with a secp224k1 curve
    * SLOTH vulnerability
    * Denial of Service through Certificate Revocation List
    
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 package/libs/mbedtls/Makefile                 | 6 +++---
 package/libs/mbedtls/patches/200-config.patch | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/package/libs/mbedtls/Makefile b/package/libs/mbedtls/Makefile
index a7d698c..65a6750 100644
--- a/package/libs/mbedtls/Makefile
+++ b/package/libs/mbedtls/Makefile
@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mbedtls
-PKG_VERSION:=2.4.0
-PKG_RELEASE:=2
+PKG_VERSION:=2.4.2
+PKG_RELEASE:=1
 PKG_USE_MIPS16:=0
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-gpl.tgz
 PKG_SOURCE_URL:=https://tls.mbed.org/download/
-PKG_HASH:=80eff0e0028f969355d6e34ffdd3dbf4eb2a9367b07ff2f3f70e6d75beee9e3f
+PKG_HASH:=d01f2d5586a52055329d194d909103f445bd2d0b6b2b5f1c830fbf828ac6299f
 
 PKG_BUILD_PARALLEL:=1
 PKG_LICENSE:=GPL-2.0+
diff --git a/package/libs/mbedtls/patches/200-config.patch b/package/libs/mbedtls/patches/200-config.patch
index 96d7c15..5108723 100644
--- a/package/libs/mbedtls/patches/200-config.patch
+++ b/package/libs/mbedtls/patches/200-config.patch
@@ -222,7 +222,7 @@
  /**
   * \def MBEDTLS_MD_C
 @@ -2158,7 +2158,7 @@
-  * Caller:  library/mbedtls_md.c
+  * Caller:  library/md.c
   *
   */
 -#define MBEDTLS_RIPEMD160_C