[digi_owl]

Zip bombs, a relative of the fork bomb.

https://en.wikipedia.org/wiki/Zip_bomb

The billion laughs XML attack is also lovely in its simplicity.

https://en.wikipedia.org/wiki/Billion_laughs

[Koahku]

I was doing a presentation about various bombs last year and crashed PowerPoint by copy-pasting billion laughs in a slide. Simple but extremely effective.

[digi_owl]

Not sure what is worse: that MS has Powerpoint interpreting randomly pasted XML, or that they do not have handling for excessive memory usage beyond crashing the whole program.