CVE-2010-4697

Use-after-free vulnerability in the Zend engine in PHP before 5.2.15 and
5.3.x before 5.3.4 might allow context-dependent attackers to cause a
denial of service (heap memory corruption) or have unspecified other impact
via vectors related to use of __set, __get, __isset, and __unset methods on
objects accessed by a reference.

Bugs

• <http://bugs.php.net/52879&gt;