@DavidR,
The second link was to show how that same issue now via an integer overflow was used (revived in another context) in the most recent Pwn2Own hack.
So insecurity is like music being played from a Dutch grinding organ. They use the same blocks (flaws) over and over again to play their favourite tunes and melodies.
Here a golden oldie from 2014 was revived. This is because digital infrastructure is insecure by design. So we have started out with a "a priori"unsafe aka insecure model and have built further onto that.
What has been INsecure from the word go, can never be secure(d) again or it has to be re-built up again from scratch and no one will or can (afford to) do that. We have to live in that world now. Do not trust a thing, and look for a bug everywhere around you, disclosed or not.
polonus