The CPU Bug: When being clever bites us in the butt

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Ars Technica has produced the best write up on what’s happening with Meltdown and Spectre.


Two days ago, the tech world ran into a wall. Probably the best summation of the event is the following tweet:

Yes, this is about the CPU bug. The CPU bug. The bug that demonstrates that sometimes being clever isn’t the same as being smart. The one that gave us Meltdown and Spectre.

I’m not going to repeat what others have reported, including The Register, the VergeBusiness Insider, and Google. But I wanted to specifically point out a New York Magazine piece because it does a good job of explaining why your IT person is currently under the desk, sobbing. Money section:

So basically every computer in the world is broken for the foreseeable future?
To quote Reverend Lovejoy: Short answer, “yes” with an “if.” Long answer, “no” with a “but.”

We’re likely looking at a world where there are pre- and post-Spectre processors. The lead time for new processors is measured in years, so there aren’t going to be quick fixes. There will be continuous software patches as new Spectre vulnerabilities are found in the meantime.

But the root of the problem for both Meltdown and Spectre is one of unforeseen consequences. Guessing what your computer is going to need to do next is a tremendously clever and relatively cheap way to speed up processors, and once it was discovered, Intel pushed aggressively to see how far they could go with it. (This is why Meltdown has hit Intel so hard.)

Designing processors and computers is an extremely difficult and extremely expensive proposition, and the market incentive for manufacturers is always going to be speed, not security. Even after Spectre disappears from the landscape, it’s a near certainty that some other vulnerability will show up on the scene.

In the meantime, stuff is getting patched. Not fixed…patched.

Microsoft just released an emergency patch (which just showed up on my PC, time to update), the current version of Firefox protects against vulnerabilities, upcoming Android and Chrome updates should help in these environments, Intel is putting out patches, and the fixes go on.

But we’re in this one for the long haul.

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Robert Scoble: Tech’s Weinstein Moment

Earlier today I was stunned to read about the accusations of sexual harassment against Robert Scoble.  We aren’t friends, but we have friends in common and we have interacted remotely in the past.

I had no idea, no clue, that Scoble had harassed women. There are some people you might suspect of doing so, and some people you don’t, and before today I would have listed Scoble in the latter category. It just goes to show that on the internet, people don’t always know you’re a dog.

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Moving to HTTP/2

I upgraded my server to Ubuntu 16.04, converted my websites over to HTTPs, and locked them in using HSTS. It would be a shame to stop here without making one last change: upgrading to the HTTP/2 protocol.

The web has been spinning along on HTTP 1.1 since 1997. It’s been a good and faithful servant. However, the protocol is also showing its age, leading to gimmicks and workarounds just to more readily process today’s web pages.

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