A CPU Memory concept has been published in an
effort to fight security attacks
The Intel STORM (STrategic Offensive Research &
Mitigations) team published a white paper that suggests the development and
implementation of a new kind of CPU memory. This new CPU memory would be able
to block side-channel attacks like Spectre and Meltdown.
STORM, an elite team of security researchers, was assembled
in 2017 to work on creating mitigations for all of the speculative-execution
attacks that have impacted Intel’s products.
The new CPU memory, referred to as speculative-access protected memory (SAPM), is just an idea at
the moment and there have been no prototypes created.
Intel STORM’s intention with
their white paper was to provide the theory and possible implementation
options. They also hoped to provide a ground base for other researchers to
improve upon and also for the industry to consider.
The researchers say SAPM will
implement protections at the hardware level and will work with both physical
and virtual memory addresses.
SAPM will also provide
protection against the second part (backend) of most speculative execution
Intel’s research team believes
that SAPM will also future-proof the next generations of Intel CPUs against
other – currently undiscovered – speculative execution attacks.
The STORM team’s published
white paper can be found here: https://www.scribd.com/document/428333001/2019-A-New-Memory-Type-Against-Speculative-Side-Channel-Attacks-v1-42
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