Merge branch 'PHP-7.1' into PHP-7.2

NEWS

@@ -13,6 +13,8 @@ PHP                                                                        NEWS
   . Fixed bug #75511 (fread not free unused buffer). (Laruence)
   . Fixed bug #75514 (mt_rand returns value outside [$min,$max]+ on 32-bit)
     (Remi)
+  . Fixed bug #75535 (Inappropriately parsing HTTP response leads to PHP
+    segment fault). (Nikita)
 
 ?? ??? ????, PHP 7.2.0
 

ext/standard/http_fopen_wrapper.c

@@ -780,6 +780,10 @@ finish:
 						&& (*http_header_value == ' ' || *http_header_value == '\t')) {
 					http_header_value++;
 				}
+			} else {
+				/* There is no colon. Set the value to the end of the header line, which is
+				 * effectively an empty string. */
+				http_header_value = e;
 			}
 
 			if (!strncasecmp(http_header_line, "Location:", sizeof("Location:")-1)) {
@@ -796,11 +800,11 @@ finish:
 				strlcpy(location, http_header_value, sizeof(location));
 			} else if (!strncasecmp(http_header_line, "Content-Type:", sizeof("Content-Type:")-1)) {
 				php_stream_notify_info(context, PHP_STREAM_NOTIFY_MIME_TYPE_IS, http_header_value, 0);
-			} else if (!strncasecmp(http_header_line, "Content-Length:", sizeof("Content-Length")-1)) {
+			} else if (!strncasecmp(http_header_line, "Content-Length:", sizeof("Content-Length:")-1)) {
 				file_size = atoi(http_header_value);
 				php_stream_notify_file_size(context, file_size, http_header_line, 0);
 			} else if (
-				!strncasecmp(http_header_line, "Transfer-Encoding:", sizeof("Transfer-Encoding")-1)
+				!strncasecmp(http_header_line, "Transfer-Encoding:", sizeof("Transfer-Encoding:")-1)
 				&& !strncasecmp(http_header_value, "Chunked", sizeof("Chunked")-1)
 			) {
 

ext/standard/tests/http/bug75535.phpt

@@ -0,0 +1,31 @@
+--TEST--
+Bug #75535: Inappropriately parsing HTTP response leads to PHP segment fault
+--SKIPIF--
+<?php require 'server.inc'; http_server_skipif('tcp://127.0.0.1:22351'); ?>
+--INI--
+allow_url_fopen=1
+--FILE--
+<?php
+require 'server.inc';
+
+$responses = array(
+	"data://text/plain,HTTP/1.0 200 Ok\r\nContent-Length\r\n",
+);
+
+$pid = http_server("tcp://127.0.0.1:22351", $responses, $output);
+
+var_dump(file_get_contents('http://127.0.0.1:22351/'));
+var_dump($http_response_header);
+
+http_server_kill($pid);
+?>
+==DONE==
+--EXPECT--
+string(0) ""
+array(2) {
+  [0]=>
+  string(15) "HTTP/1.0 200 Ok"
+  [1]=>
+  string(14) "Content-Length"
+}
+==DONE==