curl: CVE-2016-8616

case insensitive password comparison

Affected versions: curl 7.7 to and including 7.50.3

Reference:
https://curl.haxx.se/docs/adv_20161102B.html

(From OE-Core rev: 0bec84bd79b9e96500f304dec9eecaf7b11424f5)

Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/curl/curl/CVE-2016-8616.patch

@@ -0,0 +1,49 @@
+From b3ee26c5df75d97f6895e6ec4538894ebaf76e48 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Tue, 27 Sep 2016 18:01:53 +0200
+Subject: [PATCH] connectionexists: use case sensitive user/password
+ comparisons
+
+CVE: CVE-2016-8616
+Upstream-Status: Backport
+
+Bug: https://curl.haxx.se/docs/adv_20161102B.html
+Reported-by: Cure53
+Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
+
+diff -ruN a/lib/url.c b/lib/url.c
+--- a/lib/url.c	2016-11-07 08:50:23.030126833 +0100
++++ b/lib/url.c	2016-11-07 09:16:20.459836564 +0100
+@@ -3305,8 +3305,8 @@
+       if(!(needle->handler->flags & PROTOPT_CREDSPERREQUEST)) {
+         /* This protocol requires credentials per connection,
+            so verify that we're using the same name and password as well */
+-        if(!strequal(needle->user, check->user) ||
+-           !strequal(needle->passwd, check->passwd)) {
++        if(strcmp(needle->user, check->user) ||
++           strcmp(needle->passwd, check->passwd)) {
+           /* one of them was different */
+           continue;
+         }
+@@ -3369,8 +3369,8 @@
+            possible. (Especially we must not reuse the same connection if
+            partway through a handshake!) */
+         if(wantNTLMhttp) {
+-          if(!strequal(needle->user, check->user) ||
+-             !strequal(needle->passwd, check->passwd))
++          if(strcmp(needle->user, check->user) ||
++             strcmp(needle->passwd, check->passwd))
+             continue;
+         }
+         else if(check->ntlm.state != NTLMSTATE_NONE) {
+@@ -3380,8 +3380,8 @@
+ 
+         /* Same for Proxy NTLM authentication */
+         if(wantProxyNTLMhttp) {
+-          if(!strequal(needle->proxyuser, check->proxyuser) ||
+-             !strequal(needle->proxypasswd, check->proxypasswd))
++          if(strcmp(needle->proxyuser, check->proxyuser) ||
++             strcmp(needle->proxypasswd, check->proxypasswd))
+             continue;
+         }
+         else if(check->proxyntlm.state != NTLMSTATE_NONE) {

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

@@ -16,6 +16,7 @@ SRC_URI += " file://configure_ac.patch \
              file://CVE-2016-5421.patch \
              file://CVE-2016-7141.patch \
              file://CVE-2016-8615.patch \
+             file://CVE-2016-8616.patch \
            "
 
 SRC_URI[md5sum] = "9ea3123449439bbd960cd25cf98796fb"