All Raspberry Pi Devices were not affected by the Meltdown and Spectre Vulnerabilities
This week’s exposure to CPU security holes cast a bombshell to the industry as if anyone could not escape. This problem bothers almost every device in the past two decades, Intel, AMD, and ARM have come out to stand. But compared to the most affected Intel platform, the Raspberry Pi Foundation has announced a welcome news – “All of our products are immune to Meltdown and Specter!” A blogger posted on Friday In this article, Eben Upton, founder of the Raspberry Pi Foundation, first explained the bypass attacks and its impact on the speculative execution of modern processors.
Fortunately, Eben Upton said: “All Raspberry Pi models are immune to Meltdown and Specter vulnerabilities because of the ARM1176, Cortex-A7, and Cortex-A53 processors.”
Here you go: We do not believe any generation of Raspberry Pi hardware is susceptible to either the Spectre or Meltdown vulnerabilities.
— Eben Upton🧢 (@EbenUpton) January 4, 2018
Modern processors spare no effort to maintain the orderly scalability of direct memory accesses and use a range of techniques including caching, instruction rearrangement, prediction, etc. to improve the expected performance of a single processor.
The good news is that the ARM 1176, Cortex-A7, and Cortex-A53 processors used by the Raspberry Pi lack this predictive mechanism and therefore are innately immune to this type of attack.
Reference: Soft Pedia, Raspberry