The thread that the title comes from is from a Twitter user that later stated about the issue: "And YES: I LOVE hyping the sh1t out of this stuff because apparently sensationalism is the only language that forces these people to fix. "

As such, every single thing about the topic should be taken with a grain of salt. Starting with systems affected (it's not all GNU/Linux) and also CVSS score (I score it as a 6.3 instead of 9.9). Use your imagination to decide how much of what was posted is based on fact as opposed to fantasy.