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More Intel Defects (CVE-2019-1125)

Submitted by Roy Schestowitz on Wednesday 7th of August 2019 05:30:17 AM Filed under
Hardware
Security
»

Intel needs to just recall and replace all of its chips

Submitted by Roy Schestowitz on Wednesday 7th of August 2019 06:49:12 AM.
  • Windows Quietly Patches Bug That Could Reverse Meltdown, Spectre Fixes for Intel CPUs

    Spectre and Meltdown was a massive flaw in the way Intel processors handled speculative execution, a technique used in modern processors to enhance performance, that was first revealed in 2018. Speculative execution relies on predicting which calculations a processor will need to perform in advance, allowing it to work on tasks in advance and in parallel fashion rather than strictly sequentially. Unfortunately, it turned out an unfixable hardware flaw in virtually every one of Intel’s CPUs meant that they didn’t check permissions correctly and leaked information about speculative commands that were never run, possibly allowing an attacker glimpses at ultra-sensitive kernel memory.

"SWAPGS Attack"

Submitted by Roy Schestowitz on Wednesday 7th of August 2019 06:52:30 AM.
  • SWAPGS Attack — New Speculative Execution Flaw Affects All Modern Intel CPUs

    A new variant of the Spectre (Variant 1) side-channel vulnerability has been discovered that affects all modern Intel CPUs, and probably some AMD processors as well, which leverage speculative execution for high performance, Microsoft and Red Hat warned.

    Identified as CVE-2019-1125, the vulnerability could allow unprivileged local attackers to access sensitive information stored in the operating system privileged kernel memory, including passwords, tokens, and encryption keys, that would otherwise be inaccessible.

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