"Your bosses / stakeholders / customers / family / etc also cannot immediately understand, on hearing the words “Rails YAML deserialization vulnerability”, that large portions of the Internet nearly died in fire." I watched my colleagues working around the clock (not that bad as it sounds - we are scattered around the planet for a reason) patching servers, testing and ensuring every hatch is properly shut. I can imag…
You don't think for a second that the reason you were all working so hard to fix this is entirely because of the marketing? The intense marketing of Heartbleed alerted legit crackers (who would have found out anyway), and a thousand times worse, it alerted wannabe crackers of low hanging security exploit fruit. Marketing works both ways, you know.
The same arrogance that makes someone think they are the first to uncover an exploitable security bug makes it sound perfectly natural to build your own memory manager when the one provided by the OS has "bad enough" performance.