PIXEL FLOOD

...create any JPG image file with any image size (e.g. 500x500), and then manually modify its compression data to say it has a size of (0xffff x 0xffff), which results in an image with a perceived size of 4 Gigapixels. When the web application attempts to display the image, it will attempt to allocate all of its memory to this image, resulting in a crash on the back-end server.