If you can write to memory in a way that overwrites integer values the whole logic of a program falls apart. Imagine if an adversary could affect the result of everything you do with integers.
It's not necessarily a common thing. Most people aren't running python directly on the internet but being able to screw around with stuff like this is just another important tool in the toolbox when you're attacking something.
It's not necessarily a common thing. Most people aren't running python directly on the internet but being able to screw around with stuff like this is just another important tool in the toolbox when you're attacking something.