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posted by martyb on Thursday September 06 2018, @03:28PM   Printer-friendly
from the Security-is-hard,-mmmmkay? dept.

Back when Intel introduced the 80286, they didn't quite document everything right away. Errata were needed. Then the 80386 changed things. And then someone convinced them to add just one more feature at the last minute, which didn't get documented properly again.

The History of a Security Hole takes a look at the problems introduced by the I/O Permission Bitmap (IOPB) in the 80286, and how fallout from the implementation caused a security hole in all versions of OpenBSD up to 6.3 and NetBSD up to 4.4.

Conclusion? This programming thing is hard.


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  • (Score: 2) by insanumingenium on Thursday September 06 2018, @04:02PM (1 child)

    by insanumingenium (4824) on Thursday September 06 2018, @04:02PM (#731354) Journal

    Works for me just fine...

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  • (Score: 2) by KiloByte on Thursday September 06 2018, @04:07PM

    by KiloByte (375) on Thursday September 06 2018, @04:07PM (#731359)

    2 out of 4 ISPs for me; browser doesn't seem to make a difference.

    --
    Ceterum censeo systemd esse delendam.