imagick+bad data

Hi,

I'm running some tests on a php site I'm writing that allows users to
upload images to the server, which will take care of sizing them
appropriately for display.

Has anyone tried to call imagick_readimage on a garbage file?

When I try it on my Linux machine to read a file with a .gif extension
containing maybe 20 random characters I type in on the keyboard, the
apache process consumes 100% cpu and eventually segfaults. It
sometimes takes a couple of tries, but the best I've gotten is 1/3
times the process spins. Nice little DOS vulnerability, eh?

I'm using Imagick 0.9.8, Apache 2.0.46, PHP 4.3.4 ... any
suggestions?