![]() We continue to develop and test further mitigations within the operating system for the Spectre techniques. On January 8th Apple released updates for Safari on macOS and iOS to mitigate such timing-based techniques. Testing performed when the Safari mitigations were released indicated that the mitigations had no measurable impact on the Speedometer and ARES-6 tests and an impact of less than 2.5% on the JetStream benchmark. Spectre is a name covering multiple different exploitation techniques, including-at the time of this writing-CVE-2017-5753 or "bounds check bypass," and CVE-2017-5715 or "branch target injection," and CVE-2018-3639 or “speculative bounds bypass.” These techniques potentially make items in kernel memory available to user processes by taking advantage of a delay in the time it may take the CPU to check the validity of a memory access call.Īnalysis of these techniques revealed that while they are extremely difficult to exploit, even by an app running locally on a Mac or iOS device, they can be potentially exploited in JavaScript running in a web browser. Run the downloaded installer file to install the microcode on your PC. Both 64-bit and 32-bit versions are available, so download the appropriate one for whichever version of Windows you have installed -圆4 for 64-bit Windows, or x86 for 32-bit Windows. We continue to develop and test further mitigations for these issues. Download the KB4090007 patch on the Update Catalog website. Apple Watch is not affected by either Meltdown or Spectre. Since exploiting many of these issues requires a malicious app to be loaded on your Mac or iOS device, we recommend downloading software only from trusted sources such as the App Store.Īpple has already released mitigations in iOS 11.2, macOS 10.13.2, and tvOS 11.2 to help defend against Meltdown. Security updates for macOS Sierra and OS X El Capitan also include mitigations for Meltdown. To help defend against Spectre, Apple has released mitigations in iOS 11.2.2, the macOS High Sierra 10.13.2 Supplemental Update, and Safari 11.0.2 for macOS Sierra and OS X El Capitan. All Mac systems and iOS devices are affected, but there are no known exploits impacting customers at the time of this writing. These issues apply to all modern processors and affect nearly all computing devices and operating systems. Ghost Spectre Windows 10 Tech YES City Edition being released, we thought we would compare it to the popular Ghost Spectre and Default Windows 10 Pro. ![]() Will have no measurable impact on the Speedometer and ARES-6 tests andĪn impact of less than 2.5% on the JetStream benchmark.Security researchers have recently uncovered security issues known by two names, Meltdown and Spectre. Our current testing indicates that the upcoming Safari mitigations Google: “On most of our workloads, including our cloud infrastructure, we see negligible impact on performance.”Īpple also goes on to further expand on the testing stating that: Performance impact after the fix has been applied.”Īmazon: “We have not observed meaningful performance impact for the overwhelming majority of EC2 workloads.” Optimize the CPU and disk I/O path and are not seeing noticeable Microsoft: “The majority of Azure customers should not see a noticeable performance impact with this update. The performance of macOS and iOS as measured by the GeekBench 4īenchmark, or in common Web browsing benchmarks such as Speedometer, ![]() ![]() In the December 2017 updates resulted in no measurable reduction in According to a just released press release directly from Intel, Industry Testing Shows Recently Released Security Updates Not Impacting Performance in Real-World Deployments, the following OEMs/Manufactures have stated the following:Īpple: “Our testing with public benchmarks has shown that the changes Industry testing is/has already been done and will continue as this issue is flushed out. ![]()
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