how? its just a youtube video
I mainly posted that in case others are seeing similar problems. If I really want to know, I should manually download the file and analyze it (don't really have time/expertise at the moment).
Around 2006, every major OS had severe bugs discovered in their image handling libraries as fuzzing techniques become popular for testing software. As you can imagine, video is even more complex; and likely not any better tested.
Edit: I also trimmed "&nonce=42" from the url; not sure what it was.
Edit2: for shits&giggles, I tried it again, and was not able to reproduce the error.