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From 7b1898183032eeabc64a086ff040af991cebcd93 Mon Sep 17 00:00:00 2001
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From: Stanislav Malyshev <stas@php.net>
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Date: Sat, 31 Jan 2015 22:40:08 -0800
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Subject: [PATCH] Fix bug #68942 (Use after free vulnerability in unserialize()
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with DateTimeZone)
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Conflicts:
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ext/date/php_date.c
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---
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ext/date/php_date.c | 10 +++-------
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ext/date/tests/bug68942_2.phpt | 9 +++++++++
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2 files changed, 12 insertions(+), 7 deletions(-)
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create mode 100644 ext/date/tests/bug68942_2.phpt
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diff --git a/ext/date/php_date.c b/ext/date/php_date.c
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index 92e9480..08bfd08 100644
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--- a/ext/date/php_date.c
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+++ b/ext/date/php_date.c
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@@ -2521,12 +2521,9 @@ static int php_date_initialize_from_hash(php_date_obj **dateobj, HashTable *myht
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timelib_tzinfo *tzi;
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php_timezone_obj *tzobj;
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- if (zend_hash_find(myht, "date", 5, (void**) &z_date) == SUCCESS) {
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- convert_to_string(*z_date);
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- if (zend_hash_find(myht, "timezone_type", 14, (void**) &z_timezone_type) == SUCCESS) {
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- convert_to_long(*z_timezone_type);
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- if (zend_hash_find(myht, "timezone", 9, (void**) &z_timezone) == SUCCESS) {
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- convert_to_string(*z_timezone);
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+ if (zend_hash_find(myht, "date", 5, (void**) &z_date) == SUCCESS && Z_TYPE_PP(z_date) == IS_STRING) {
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+ if (zend_hash_find(myht, "timezone_type", 14, (void**) &z_timezone_type) == SUCCESS && Z_TYPE_PP(z_timezone_type) == IS_LONG) {
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+ if (zend_hash_find(myht, "timezone", 9, (void**) &z_timezone) == SUCCESS && Z_TYPE_PP(z_timezone) == IS_STRING) {
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switch (Z_LVAL_PP(z_timezone_type)) {
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case TIMELIB_ZONETYPE_OFFSET:
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@@ -2541,7 +2538,6 @@ static int php_date_initialize_from_hash(php_date_obj **dateobj, HashTable *myht
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case TIMELIB_ZONETYPE_ID: {
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int ret;
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- convert_to_string(*z_timezone);
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tzi = php_date_parse_tzfile(Z_STRVAL_PP(z_timezone), DATE_TIMEZONEDB TSRMLS_CC);
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diff --git a/ext/date/tests/bug68942_2.phpt b/ext/date/tests/bug68942_2.phpt
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new file mode 100644
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index 0000000..5b02567
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--- /dev/null
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+++ b/ext/date/tests/bug68942_2.phpt
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@@ -0,0 +1,9 @@
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+--TEST--
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+Bug #68942 (Use after free vulnerability in unserialize() with DateTime).
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+--FILE--
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+
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+$data = unserialize('a:2:{i:0;O:8:"DateTime":3:{s:4:"date";s:26:"2000-01-01 00:00:00.000000";s:13:"timezone_type";a:2:{i:0;i:1;i:1;i:2;}s:8:"timezone";s:1:"A";}i:1;R:5;}');
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+var_dump($data);
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+?>
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+--EXPECTF--
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+Fatal error: Invalid serialization data for DateTime object in %s/bug68942_2.php on line %d
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--
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2.1.4
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