They claim that the vulnerability in the chipset, which Intel learned about several months ago, make its chips inherently faulty.
Meltdown affects only Intel chips and lets hackers bypass the hardware barrier between applications run by users and the computer's memory, potentially letting hackers read sensitive information or steal passwords.
Meltdown is a particular problem for companies such as Amazon and Google with cloud hosting services. By Wednesday, Google and Microsoft said they had updated their systems to deal with the flaw. It's been identified on processors made by Intel, AMD and ARM, according to researchers.
Probably, yes. But you should not panic as we are not aware of any exploits. Daniel Gruss, one of the researchers at Graz University of Technology who discovered Meltdown, called it "probably one of the worst CPU bugs ever found" in an interview with Reuters.
"Intel believes these exploits do not have the potential to corrupt, modify or delete data".
The electronics giant urged consumers and businesses to check with operating system vendors and device manufacturers for updates.
But in this case, Intel was forced to disclose the problem Wednesday after British technology site The Register reported it, causing Intel's stock to fall. Google's Project Zero team notes that "exploitation has been shown to be hard and limited on the majority of Android devices".
While the revealations claimed that the security bug is affecting the devices with processors from AMD as well. AMD's EPYC server chips are in the beginning stages of assaulting Intel's server chip monopoly, and a closing of the performance gap could do wonders for its market share. Even if we still don't know if Meltdown or Spectre have already been abused in the wild, Intel will have to share more details about how it plans to roll out firmware updates Windows PCs going forward. "These new exploits leverage data about the proper operation of processing techniques common to modern computing platforms, potentially compromising security even though a system is operating exactly as it is created to". The latest cumulative update for Windows 10, Windows 8.1 and Windows 7 includes a fix for the vulnerability in some chipsets. ARM Holdings said it's working with Intel, AMD and operating system vendors to address the problem. Further updates of iOS, macOS, tvOS, and watchOS will be released to limit the threat of the vulnerabilities, Apple said.
Speaking on Twitter, Xbox Platform lead Mike Ybarra noted that "the Xbox One's security structure already prevents attacks from the Spectre and Meltdown vulnerabilities".
Media reports have suggesting a significant performance impact from some of the updates.
Third-party benchmarking of the performance hits on affected machines ranged from 5-30 percent depending on the specific processor, OS, and task.