Intel Says 90% Of Chips Affected By Spectre And Meltdown Exploits Patched

Windows 10 users warned about fake Meltdown and Spectre updates 0

The Meltdown vulnerability does not affect AMD's processors at all, but things get blurry as far as Spectre is concerned. "But we have more work to do".

"Intel recommends that these partners, at their discretion, continue development and release of updates with existing microcode to provide protection against these exploits, understanding that the current versions may introduce issues such as reboot in some configurations", the company wrote.

"We have reproduced these issues internally and are making progress toward identifying the root cause", Shenoy said.

Intel and ARM insisted that the issue was not a design flaw, but it will require users to download a patch and update their operating system to fix.

Data centre computers containing Ivy Bridge, Sandy Bridge, Skylake and Kaby Lake processors have been found to have higher-than-expected reboot rates following a recent series of patches issued to address security flaws.

More news: New York Giants Rumors: Pat Shurmur now 'the top choice'

The download is called Intel-AMD-SecurityPatch-10-1-v1.exe - a filename that looks pretty legitimate, but when users install it onto their computer, they'll find it's actually laced with the Smoke Loader malware, causing the computer to connect to domains, sending encrypted information to them via additional payloads. Shenoy said that the company has issued patches for 90 percent of its chips made in the previous five years but it needs to do more in that space.

Intel says workloads with more user/kernel privilege changes and which spend a lot of time in privileged mode are more adversely impacted. "To date, we have tested server platforms running two-socket Intel Xeon Scalable systems - code-named Skylake, our latest server microarchitecture", Shenoy says. For some of the tasks involving servers having to store and retrieve huge amounts of data, the slowdown could extend to 18 to 25%, according to Intel. When CPU utilization was low (100% read case), as is the case with common storage provisioning, we saw an increase in CPU utilization, but no throughput performance impact.

Intel issued the update as part of a broader update on the performance impact of the patches on data center workloads.

Google last week urged the whole industry to adopt Retpoline because it mitigated the attack but had nearly no negative performance impact on current hardware.

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