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Quorten Blog 1

First blog for all Quorten's blog-like writings

L1TF vulnerability

2020-01-21

Categories: security  
Tags: security  

When reading the Linux kernel system logs on an old computer, I saw a notice that computer’s particular CPU had the L1TF bug. What is this? It is another CPU hardware bug similar to Meltdown that allows reading privileged data via a side channel timing attack, due to the specifics of the L1 cache behavior.

20200121/https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html