From: Markus Koschany <apo@debian.org>
Date: Sun, 16 Jul 2017 18:15:19 +0200
Subject: CVE-2017-11143

Bug-Upstream: https://bugs.php.net/bug.php?id=74145
Origin: https://git.php.net/?p=php-src.git;a=commitdiff;h=2aae60461c2ff7b7fbcdd194c789ac841d0747d7
Origin: http://git.php.net/?p=php-src.git;a=commitdiff;h=f269cdcd4f76accbecd03884f327cffb9a7f1ca9
---
 ext/wddx/tests/bug74145.phpt | 16 ++++++++++++++++
 ext/wddx/tests/bug74145.xml  |  9 +++++++++
 ext/wddx/wddx.c              | 10 ++++++----
 3 files changed, 31 insertions(+), 4 deletions(-)
 create mode 100644 ext/wddx/tests/bug74145.phpt
 create mode 100644 ext/wddx/tests/bug74145.xml

diff --git a/ext/wddx/tests/bug74145.phpt b/ext/wddx/tests/bug74145.phpt
new file mode 100644
index 0000000..a99a117
--- /dev/null
+++ b/ext/wddx/tests/bug74145.phpt
@@ -0,0 +1,16 @@
+--TEST--
+Bug #74145 (wddx parsing empty boolean tag leads to SIGSEGV)
+--SKIPIF--
+<?php
+if (!extension_loaded("wddx")) print "skip";
+?>
+--FILE--
+<?php
+$data = file_get_contents(__DIR__ . '/bug74145.xml');
+$wddx = wddx_deserialize($data);
+var_dump($wddx);
+?>
+DONE
+--EXPECTF--
+NULL
+DONE
\ No newline at end of file
diff --git a/ext/wddx/tests/bug74145.xml b/ext/wddx/tests/bug74145.xml
new file mode 100644
index 0000000..e5d35fb
--- /dev/null
+++ b/ext/wddx/tests/bug74145.xml
@@ -0,0 +1,9 @@
+<?xml version='1.0' ?>
+    <!DOCTYPE et SYSTEM 'w'>
+    <wddxPacket ven='1.0'>
+        <array>
+            <var Name="name">
+                <boolean ></boolean>
+            </var>
+        </array>
+    </wddxPacket>
diff --git a/ext/wddx/wddx.c b/ext/wddx/wddx.c
index d401b62..3293d62 100644
--- a/ext/wddx/wddx.c
+++ b/ext/wddx/wddx.c
@@ -795,20 +795,22 @@ static void php_wddx_push_element(void *user_data, const XML_Char *name, const X
 
 		if (atts) for (i = 0; atts[i]; i++) {
 			if (!strcmp(atts[i], EL_VALUE) && atts[i+1] && atts[i+1][0]) {
-				ent.type = ST_BOOLEAN;
-				SET_STACK_VARNAME;
-
 				ALLOC_ZVAL(ent.data);
 				INIT_PZVAL(ent.data);
 				Z_TYPE_P(ent.data) = IS_BOOL;
+				ent.type = ST_BOOLEAN;
+				SET_STACK_VARNAME;
 				wddx_stack_push((wddx_stack *)stack, &ent, sizeof(st_entry));
 				php_wddx_process_data(user_data, atts[i+1], strlen(atts[i+1]));
 				break;
 			}
 		} else {
+			ALLOC_ZVAL(ent.data);
+			INIT_PZVAL(ent.data);
+			Z_TYPE_P(ent.data) = IS_BOOL;
 			ent.type = ST_BOOLEAN;
 			SET_STACK_VARNAME;
-			ZVAL_FALSE(&ent.data);
+			ZVAL_FALSE(ent.data);
 			wddx_stack_push((wddx_stack *)stack, &ent, sizeof(st_entry));
 		}
 	} else if (!strcmp(name, EL_NULL)) {