From e2958a432947f16a89f196171a572abc1c506154 Mon Sep 17 00:00:00 2001
From: Remi Collet <fedora@famillecollet.com>
Date: Thu, 23 Jun 2016 15:53:37 +0200
Subject: PHP 5.4.45 with security fix from 5.5.37

---
 bug72434.patch | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 bug72434.patch

(limited to 'bug72434.patch')

diff --git a/bug72434.patch b/bug72434.patch
new file mode 100644
index 0000000..2e9294d
--- /dev/null
+++ b/bug72434.patch
@@ -0,0 +1,78 @@
+From f6aef68089221c5ea047d4a74224ee3deead99a6 Mon Sep 17 00:00:00 2001
+From: Stanislav Malyshev <stas@php.net>
+Date: Mon, 20 Jun 2016 21:35:22 -0700
+Subject: [PATCH] Fix bug #72434: ZipArchive class Use After Free Vulnerability
+ in PHP's GC algorithm and unserialize
+
+---
+ ext/standard/tests/strings/bug72434.phpt | 33 ++++++++++++++++++++++++++++++++
+ ext/zip/php_zip.c                        |  9 +++++++++
+ 2 files changed, 42 insertions(+)
+ create mode 100644 ext/standard/tests/strings/bug72434.phpt
+
+diff --git a/ext/standard/tests/strings/bug72434.phpt b/ext/standard/tests/strings/bug72434.phpt
+new file mode 100644
+index 0000000..1408b8f
+--- /dev/null
++++ b/ext/standard/tests/strings/bug72434.phpt
+@@ -0,0 +1,33 @@
++--TEST--
++Bug #72434: ZipArchive class Use After Free Vulnerability in PHP's GC algorithm and unserialize
++--SKIPIF--
++<?php
++if(!class_exists('zip')) die('ZipArchive');
++?>
++--FILE--
++<?php
++// The following array will be serialized and this representation will be freed later on.
++$free_me = array(new StdClass());
++// Create our payload and unserialize it.
++$serialized_payload = 'a:3:{i:1;N;i:2;O:10:"ZipArchive":1:{s:8:"filename";'.serialize($free_me).'}i:1;R:4;}';
++$unserialized_payload = unserialize($serialized_payload);
++gc_collect_cycles();
++// The reference counter for $free_me is at -1 for PHP 7 right now.
++// Increment the reference counter by 1 -> rc is 0
++$a = $unserialized_payload[1];
++// Increment the reference counter by 1 again -> rc is 1
++$b = $a;
++// Trigger free of $free_me (referenced by $m[1]).
++unset($b);
++$fill_freed_space_1 = "filler_zval_1";
++$fill_freed_space_2 = "filler_zval_2";
++$fill_freed_space_3 = "filler_zval_3";
++$fill_freed_space_4 = "filler_zval_4";
++debug_zval_dump($unserialized_payload[1]);
++?>
++--EXPECTF--
++array(1) refcount(1){
++  [0]=>
++  object(stdClass)#%d (0) refcount(3){
++  }
++}
+diff --git a/ext/zip/php_zip.c b/ext/zip/php_zip.c
+index 99c293c..57d060f 100644
+--- a/ext/zip/php_zip.c
++++ b/ext/zip/php_zip.c
+@@ -1015,6 +1015,14 @@ static int php_zip_has_property(zval *object, zval *member, int type, const zend
+ }
+ /* }}} */
+ 
++static HashTable *php_zip_get_gc(zval *object, zval ***gc_data, int *gc_data_count TSRMLS_DC) /* {{{ */
++{
++	*gc_data = NULL;
++	*gc_data_count = 0;
++	return zend_std_get_properties(object TSRMLS_CC);
++}
++/* }}} */
++
+ static HashTable *php_zip_get_properties(zval *object TSRMLS_DC)/* {{{ */
+ {
+ 	ze_zip_object *obj;
+@@ -2777,6 +2785,7 @@ static PHP_MINIT_FUNCTION(zip)
+ 	zip_object_handlers.clone_obj		= NULL;
+ 	zip_object_handlers.get_property_ptr_ptr = php_zip_get_property_ptr_ptr;
+ 
++	zip_object_handlers.get_gc          = php_zip_get_gc;
+ 	zip_object_handlers.get_properties = php_zip_get_properties;
+ 	zip_object_handlers.read_property	= php_zip_read_property;
+ 	zip_object_handlers.has_property	= php_zip_has_property;
-- 
cgit