Internet Bug Bounty: Integer Overflow in _gd2GetHeader() resulting in heap overflow

The gd2GetHeader is prone to an integer overflow, which result in heap based overflow. Tested on PHP 5.6.22 --------------- PoC --------------- $ ls poc.gd poc.php $ cat poc.php --------------- Result --------------- /php$ gdb -q --args ./php-5.6.22/sapi/cli/php poc.php Reading symbols from...

libgd 2.1.1 - Signedness Heap Overflow

Exploit for linux platform in category remote exploits Overview ======== libgd 1 is an open-source image library. It is perhaps primarily used by the PHP project. It has been bundled with the default installation of PHP since version 4.3 2. A signedness vulnerability CVE-2016-3074 exist in libgd...

libgd 2.1.1 - Signedness Heap Overflow

Overview ======== libgd 1 is an open-source image library. It is perhaps primarily used by the PHP project. It has been bundled with the default installation of PHP since version 4.3 2. A signedness vulnerability CVE-2016-3074 exist in libgd 2.1.1 which may result in a heap overflow when processi...