Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://bugzilla.redhat.com/show_bug.cgi?id=741020 ↗
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 ↗
- http://svn.php.net/viewvc/?view=revision&revision=317183 ↗
- https://bugs.php.net/bug.php?id=55475 ↗
- http://www.securityfocus.com/archive/1/519770/30/0/threaded ↗
- http://securityreason.com/securityalert/8525 ↗
- http://www.byte.nl/blog/2011/09/23/security-bug-in-is_a-function-in-php-5-3-7-5-3-8/ ↗