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Old 07-11-2018, 08:14 PM   #1
SRTDodge05
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Two Hard-to-Detect Spectre Flaws Found for Intel, Arm Processors

Spectre 1.1
The first flaw the researchers uncovered is a variant of the original Spectre v1 (first variant) speculative execution flaw found in most modern processors earlier this year. Spectre 1.1 leverages speculative stores to create speculative buffer overflows, which can modify data and code pointers. This type of attack can also bypass existing Spectre 1.0 mitigations either directly or by redirecting control flow.

Intel and Arm have already come out and acknowledged that their processors are vulnerable to Spectre 1.1. AMD hasn’t released a statement yet, but chances are this also affects AMD’s CPUs.

Spectre 1.2
According to the researchers, Spectre 1.2 is similar to Spectre v3 in the sense that it depends on bypassing lazy read/write protections. Attacks that exploit the Spectre 1.2 flaw can overwrite read-only data, code pointers, and code metadata, including control flow mitigation metadata. As a result of this, hardware-enforced sandboxing protection is rendered ineffective.

The researchers have validated the Spectre 1.2 attack on both Intel and Arm processors. They also suggested that a hardware fix would ideally check the the translation lookaside buffer (TLB) entries to confirm write privileges.

Two Hard-to-Detect Spectre Flaws Found for Intel, Arm Processors
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Old 07-12-2018, 11:09 AM   #2
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Re: Two Hard-to-Detect Spectre Flaws Found for Intel, Arm Processors

Thanks for the info...I'm going for tin foil hat!
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Old 07-12-2018, 12:44 PM   #3
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Re: Two Hard-to-Detect Spectre Flaws Found for Intel, Arm Processors

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Originally Posted by fvbounty View Post
Thanks for the info...I'm going for tin foil hat!
Hey Ken, let me know if ya find any good deals on tin foil hats...
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Old 07-12-2018, 03:21 PM   #4
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Re: Two Hard-to-Detect Spectre Flaws Found for Intel, Arm Processors

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Hey Ken, let me know if ya find any good deals on tin foil hats...
Sure will Skully I need a extra large how about you???????????
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Old 07-12-2018, 09:01 PM   #5
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Re: Two Hard-to-Detect Spectre Flaws Found for Intel, Arm Processors

Better hurry cost of tin foil is going up.
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Old 07-13-2018, 10:40 AM   #6
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Re: Two Hard-to-Detect Spectre Flaws Found for Intel, Arm Processors

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Originally Posted by SRTDodge05 View Post
Better hurry cost of tin foil is going up.
I hear that...
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