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From: Stanislav Malyshev <stas@php.net>
Date: Tue, 17 Feb 2015 05:53:27 +0000 (+0100)
Subject: Fix bug #68942 (Use after free vulnerability in unserialize() with DateTimeZone)
X-Git-Tag: php-5.6.6~6
X-Git-Url: http://72.52.91.13:8000/?p=php-src.git;a=commitdiff_plain;h=71335e6ebabc1b12c057d8017fd811892ecdfd24
Fix bug #68942 (Use after free vulnerability in unserialize() with DateTimeZone)
---
diff --git a/ext/date/php_date.c b/ext/date/php_date.c
index f8571b9..15ca08d 100644
--- a/ext/date/php_date.c
+++ b/ext/date/php_date.c
@@ -2807,12 +2807,9 @@ static int php_date_initialize_from_hash(php_date_obj **dateobj, HashTable *myht
timelib_tzinfo *tzi;
php_timezone_obj *tzobj;
- if (zend_hash_find(myht, "date", 5, (void**) &z_date) == SUCCESS) {
- convert_to_string(*z_date);
- if (zend_hash_find(myht, "timezone_type", 14, (void**) &z_timezone_type) == SUCCESS) {
- convert_to_long(*z_timezone_type);
- if (zend_hash_find(myht, "timezone", 9, (void**) &z_timezone) == SUCCESS) {
- convert_to_string(*z_timezone);
+ if (zend_hash_find(myht, "date", 5, (void**) &z_date) == SUCCESS && Z_TYPE_PP(z_date) == IS_STRING) {
+ if (zend_hash_find(myht, "timezone_type", 14, (void**) &z_timezone_type) == SUCCESS && Z_TYPE_PP(z_timezone_type) == IS_LONG) {
+ if (zend_hash_find(myht, "timezone", 9, (void**) &z_timezone) == SUCCESS && Z_TYPE_PP(z_timezone) == IS_STRING) {
switch (Z_LVAL_PP(z_timezone_type)) {
case TIMELIB_ZONETYPE_OFFSET:
@@ -2827,7 +2824,6 @@ static int php_date_initialize_from_hash(php_date_obj **dateobj, HashTable *myht
case TIMELIB_ZONETYPE_ID: {
int ret;
- convert_to_string(*z_timezone);
tzi = php_date_parse_tzfile(Z_STRVAL_PP(z_timezone), DATE_TIMEZONEDB TSRMLS_CC);
@@ -3744,9 +3740,8 @@ static int php_date_timezone_initialize_from_hash(zval **return_value, php_timez
zval **z_timezone = NULL;
zval **z_timezone_type = NULL;
- if (zend_hash_find(myht, "timezone_type", 14, (void**) &z_timezone_type) == SUCCESS) {
+ if (zend_hash_find(myht, "timezone_type", 14, (void**) &z_timezone_type) == SUCCESS && Z_TYPE_PP(z_timezone_type) == IS_LONG) {
if (zend_hash_find(myht, "timezone", 9, (void**) &z_timezone) == SUCCESS) {
- convert_to_long(*z_timezone_type);
if (SUCCESS == timezone_initialize(*tzobj, Z_STRVAL_PP(z_timezone) TSRMLS_CC)) {
return SUCCESS;
}
@@ -3771,7 +3766,9 @@ PHP_METHOD(DateTimeZone, __set_state)
php_date_instantiate(date_ce_timezone, return_value TSRMLS_CC);
tzobj = (php_timezone_obj *) zend_object_store_get_object(return_value TSRMLS_CC);
- php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht TSRMLS_CC);
+ if(php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht TSRMLS_CC) != SUCCESS) {
+ php_error_docref(NULL, E_ERROR, "Timezone initialization failed");
+ }
}
/* }}} */
@@ -3787,7 +3784,9 @@ PHP_METHOD(DateTimeZone, __wakeup)
myht = Z_OBJPROP_P(object);
- php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht TSRMLS_CC);
+ if(php_date_timezone_initialize_from_hash(&return_value, &tzobj, myht TSRMLS_CC) != SUCCESS) {
+ php_error_docref(NULL, E_ERROR, "Timezone initialization failed");
+ }
}
/* }}} */
diff --git a/ext/date/tests/bug68942.phpt b/ext/date/tests/bug68942.phpt
new file mode 100644
index 0000000..595cd9f
--- /dev/null
+++ b/ext/date/tests/bug68942.phpt
@@ -0,0 +1,9 @@
+--TEST--
+Bug #68942 (Use after free vulnerability in unserialize() with DateTimeZone).
+--FILE--
+<?php
+$data = unserialize('a:2:{i:0;O:12:"DateTimeZone":2:{s:13:"timezone_type";a:2:{i:0;i:1;i:1;i:2;}s:8:"timezone";s:1:"A";}i:1;R:4;}');
+var_dump($data);
+?>
+--EXPECTF--
+Fatal error: DateTimeZone::__wakeup(): Timezone initialization failed in %s/bug68942.php on line %d
diff --git a/ext/date/tests/bug68942_2.phpt b/ext/date/tests/bug68942_2.phpt
new file mode 100644
index 0000000..5b02567
--- /dev/null
+++ b/ext/date/tests/bug68942_2.phpt
@@ -0,0 +1,9 @@
+--TEST--
+Bug #68942 (Use after free vulnerability in unserialize() with DateTime).
+--FILE--
+<?php
+$data = unserialize('a:2:{i:0;O:8:"DateTime":3:{s:4:"date";s:26:"2000-01-01 00:00:00.000000";s:13:"timezone_type";a:2:{i:0;i:1;i:1;i:2;}s:8:"timezone";s:1:"A";}i:1;R:5;}');
+var_dump($data);
+?>
+--EXPECTF--
+Fatal error: Invalid serialization data for DateTime object in %s/bug68942_2.php on line %d
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