curl: security fix for CVE-2016-5420

Affected versions: libcurl 7.1 to and including 7.50.0

(From OE-Core rev: cc567d8fb9eca630cd21d40ece99babcc5b7d045)

Signed-off-by: Maxin B. John <maxin.john@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/curl/curl/CVE-2016-5420.patch

@@ -0,0 +1,31 @@
+From 11ec5ad4352bba384404c56e77c7fab9382fd22d Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Sun, 31 Jul 2016 00:51:48 +0200
+Subject: [PATCH] TLS: only reuse connections with the same client cert
+
+Bug: https://curl.haxx.se/docs/adv_20160803B.html
+
+Upstream-Status: Backport
+https://curl.haxx.se/CVE-2016-5420.patch
+
+CVE: CVE-2016-5420
+Signed-off-by: Maxin B. John <maxin.john@intel.com>
+---
+ lib/vtls/vtls.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c
+index 33e209d..3863777 100644
+--- a/lib/vtls/vtls.c
++++ b/lib/vtls/vtls.c
+@@ -99,6 +99,7 @@ Curl_ssl_config_matches(struct ssl_config_data* data,
+      (data->verifyhost == needle->verifyhost) &&
+      safe_strequal(data->CApath, needle->CApath) &&
+      safe_strequal(data->CAfile, needle->CAfile) &&
++     safe_strequal(data->clientcert, needle->clientcert) &&
+      safe_strequal(data->random_file, needle->random_file) &&
+      safe_strequal(data->egdsocket, needle->egdsocket) &&
+      safe_strequal(data->cipher_list, needle->cipher_list))
+-- 
+2.4.0
+

meta/recipes-support/curl/curl_7.47.1.bb

@@ -12,6 +12,7 @@ SRC_URI = "http://curl.haxx.se/download/curl-${PV}.tar.bz2"
 #
 SRC_URI += " file://configure_ac.patch \
              file://CVE-2016-5419.patch \
+             file://CVE-2016-5420.patch \
            "
 
 SRC_URI[md5sum] = "9ea3123449439bbd960cd25cf98796fb"