CVE-2011-3379

The is_a function in PHP 5.3.7 and 5.3.8 triggers a call to the __autoload
function, which makes it easier for remote attackers to execute arbitrary
code by providing a crafted URL and leveraging potentially unsafe behavior
in certain PEAR packages and custom autoloaders.

Bugs

• <https://bugs.php.net/bug.php?id=55475&gt;
• <https://bugzilla.redhat.com/show_bug.cgi?id=741020&gt;

Notes