Octubre 22, 2018

AMD To Begin Distributing Firmware Updates To Patch Spectre Vulnerability

13 Enero 2018, 01:45 | Verda Sainz

Linux vendors are also rolling out patches for AMD systems too. The fixes reportedly rendered a smaller number of systems unbootable.

After rolling out a patch to combat the Meltdown and Spectre vulnerability, Intel is apparently quietly telling some of its big customers to "delay" installing the fix. These can be found at the website.

Project Zero was one of three teams that independently discovered and reported the Meltdown exploit, and one of two teams that independently discovered and reported the Spectre exploit. The complaint cited reports that Intel had been warned of the problem.

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In each case, AMD will supply to OEMs who will then need to make sure they are passed on to the user. Almost most of the devices were effected by these Meltdown and Spectre flaws including the Apple devices.Both the "Spectre and Meltdown" flaws affect the performance of CPU feature called Speculative Execution which is responsible for improving speed and operate multiple operations.

Major cloud providers, AWS, Google and Microsoft say that, for the majority of workloads, customers should not notice a difference in performance following the updates. The company said updates may need to be issued in order to solve the problem. These threats seek to circumvent the microprocessor architecture controls that preserve secure data.

Contrary to Intel's protests, the potential risk from Meltdown is due to a design flaw, Thompson also noted.

However older hardware, specifically devices powered by the 7th Gen Kaby Lake-H mobile processors will be around seven per cent slower, while the performance impact on systems with the 6th Gen Skylake-S platform estimated at around eight per cent.

As a result, Microsoft temporarily halted Windows OS updates to devices with AMD processors affected by this apparent bug, including nine updates released since January 3 with the security-only Spectre and Meltdown update among them (KB4056897).

Finally, keep in mind we're still in the early days of dealing with these fundamentally different security problems. However, yesterday the chip maker admitted these updates were causing certain computers to unexpectedly reboot. "This is why you want to be careful to evaluate the risk of untrusted code for each Windows Server instance, and balance the security versus performance tradeoff for your environment", he wrote.

Security researchers disclosed the flaws that affected nearly every modern computing device containing chips from Intel, AMD and ARM Holdings, owned by Japan's SoftBank Group. "We will then focus on issuing updates for older products as prioritised by our customers", Krzanich noted.

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