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06 Enero 2018, 11:50 | Benedicto Grullon
Meltdown and Spectre chip security flaws leave billions of smart devices and computers at risk
The problem impacts processors going back more than two decades and could let hackers access passwords, encryption keys or sensitive information open in applications.
Updated, 9.48am, 4 January 2018: This article was updated clarify that at the time of writing, Apple has yet to comment on updates to tackle vulnerabilities posed by the Spectre and Meltdown revelations.
The Defense Information Systems Agency said it "constantly monitors and evaluates the security posture of all its systems and networks", but otherwise declined to elaborate further on DISA's role mitigating the two vulnerabilities, citing security reasons. While Spectre and Meltdown technically can be exploited in different ways, they both allow for the isolation an operating system should have to be broken.
While security flaws are typically limited to a specific company or product, Intelsays the problem is "not a bug or a flaw in Intel products" but rather a broader problem affecting processing techniques common to modern computing platforms. Google's infrastructure, including YouTube, Maps and Search, was impacted by the vulnerability, but no consumer action is needed, according to a company announcement.
The lawsuits also allege that the patches to fix the vulnerabilities will cause computers to operate more slowly.
Experts say the defects can't necessarily be fixed with software upgrades, and complete re-designs of computer processors may be needed.
Affected devices run the gamut, from laptops to high-end cloud servers, with the exception of systems with pre-2013 Itanium and Atom processors. The complaints, published by Gizmodo, were filed in Oregon, California, and Indiana by owners of Intel CPU-based computers. Solutions exist that introduce minimal performance impact, and expect such techniques will be adopted by software vendors over time. What is it protecting against?
Firstly, it's important to understand what the flaws actually entail. The company already released mitigations against Meltdown in its most recent versions of iPhone, iPad, Mac, and Apple TV software.
The National Cybersecurity and Communications Integration Center (NCCIC) put out an alert Jan. 4 offering guidance and a list of patches from 23 of the top vendors affected, including Intel, AMD, Android and Google. Short of one being made, the only way the issue will be fully eradicated is with new microprocessors.
There's no complete software patch for Spectre right now, said Michael Daly, chief technology officer of cybersecurity and special missions at Raytheon, a defense company.
In a statement Thursday, Arm said that the majority of its processors are not affected by Spectre or Meltdown but confirmed that it has been working with Intel, AMD and other partners to develop defenses against the vulnerabilities.
"Spectre attacks involve inducing a victim to speculatively perform operations that would not occur during correct program execution and which leak the victim's confidential information via a side channel to the adversary", a specialised Spectre report claims. Windows 10 updates should be available immediately, with Windows 7 and 8 updates following next week. Spy agencies, for instance, might have known about them for years-and used them without anybody knowing.
Will antivirus prevent an attack?
There are good economic reasons for the lack of diversity in processors, too, chiefly the benefits of standardisation, which makes computers compatible and lowers costs.
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