Intel Claims Security Flaw Also Impacts Non-Intel Chips, Exploits Can't Corrupt, Modify or Delete Data [Updated]

intelIntel this afternoon addressed reports of a serious design flaw and security vulnerability in its CPUs, shedding additional light on the issue that was uncovered yesterday and has since received extensive media coverage.

In a statement on its website, Intel says that it planned to disclose the vulnerability next week when additional software patches were available, but was forced to make a statement today due to "inaccurate media reports."

According to Intel, the issue is not limited to Intel chips and the exploits in question do not have the potential to corrupt, modify, or delete data. Despite Intel's statement, Intel chips are more heavily impacted, and it's worth noting that Intel makes no mention of reading kernel level data.

Intel and other technology companies have been made aware of new security research describing software analysis methods that, when used for malicious purposes, have the potential to improperly gather sensitive data from computing devices that are operating as designed. Intel believes these exploits do not have the potential to corrupt, modify or delete data.

Recent reports that these exploits are caused by a "bug" or a "flaw" and are unique to Intel products are incorrect. Based on the analysis to date, many types of computing devices -- with many different vendors' processors and operating systems -- are susceptible to these exploits.

Intel says it is working with several other technology companies including AMD, ARM, and operating system vendors to "develop an industry-wide approach" to resolve the problem "promptly and constructively."

As outlined yesterday, the design flaw appears to allow normal user programs to see some of the contents of the protected kernel memory, potentially giving hackers and malicious programs access to sensitive information like passwords, login keys, and more. Fixing the issue involves isolating the kernel's memory from user processes using Kernel Page Table Isolation at the OS level.

Despite reports suggesting software fixes for the vulnerability could cause slowdowns of 5 to 30 percent on some machines, Intel claims performance impacts are workload-dependent and will not be noticeable to the average computer user.

Intel has begun providing software and firmware updates to mitigate these exploits. Contrary to some reports, any performance impacts are workload-dependent, and, for the average computer user, should not be significant and will be mitigated over time.

Intel goes on to say that it believes its products are "the most secure in the world" and that the current fixes in the works provide the "best possible security" for its customers. Intel recommends that users install operating system updates as soon as they are available.

For Mac users, Apple has already addressed the design flaw in macOS 10.13.2, which was released to the public on December 6.

Update: Security researchers have now shared details about two separate critical vulnerabilities impacting most Intel processors and some ARM processors. Called Meltdown and Spectre, the vulnerabilities offer hackers access to data from the memory of running apps, providing passwords, emails, documents, photos, and more.

"Almost every system" since 1995 is impacted according to ZDNet, including computers and smartphones. Meltdown can read the entire physical memory of the target machine, while Spectre is able to break the isolation between different apps. Meltdown, an easy-to-use exploit, affects only Intel chips and can be addressed by a security patch, which could result in some performance issues. Spectre impacts all processors, including those from ARM and AMD, and while it is harder to exploit, there is no known fix. Fully addressing Spectre will require a re-architecture of how processors are designed.

It's not known if hackers have exploited Meltdown and Spectre as of yet, but there are proof-of-concept examples out in the wild. Google's Project Zero team had a hand in unearthing the vulnerabilities and Google has also shared details on the exploits. Full research papers on Meltdown and Spectre are available here.

Update 2: ARM and AMD have both issued statements following Intel's press release. AMD says there is a "near zero risk" to AMD processors at this time, while ARM says its processors are vulnerable.

From AMD:

There is a lot of speculation today regarding a potential security issue related to modern microprocessors and speculative execution. As we typically do when a potential security issue is identified, AMD has been working across our ecosystem to evaluate and respond to the speculative execution attack identified by a security research team to ensure our users are protected.

To be clear, the security research team identified three variants targeting speculative execution. The threat and the response to the three variants differ by microprocessor company, and AMD is not susceptible to all three variants. Due to differences in AMD's architecture, we believe there is a near zero risk to AMD processors at this time. We expect the security research to be published later today and will provide further updates at that time.

From ARM:

I can confirm that ARM have been working together with Intel and AMD to address a side-channel analysis method which exploits speculative execution techniques used in certain high-end processors, including some of our Cortex-A processors. This method requires malware running locally and could result in data being accessed from privileged memory. Please note our Cortex-M processors, which are pervasive in low-power, connected IoT devices, are not impacted.

We are in the process of informing our silicon partners and encouraging them to implement the software mitigations developed if their chips are impacted.

Top Rated Comments

timeconsumer Avatar
46 months ago
I wonder how long Intel has known about this flaw.
Apparently the CEO sold a lot of his stock on Nov 29th and kept the bare minimum amount.

https://www.fool.com/investing/2017/12/19/intels-ceo-just-sold-a-lot-of-stock.aspx
Score: 26 Votes (Like | Disagree)
Apple_Robert Avatar
46 months ago
I wonder how long Intel has known about this flaw.
Score: 26 Votes (Like | Disagree)
velocityg4 Avatar
46 months ago
No... after this, I doubt Intel on security, and from what I gather, this stretches all the way back to the Pentium Pro.

Also, I don't care if it modifies, writes or deletes... the most improtant thing the bug allows reading
At least those running DOS 6 and Windows 3.1 on a 486 are safe.
Score: 24 Votes (Like | Disagree)
kevinthebright Avatar
46 months ago
Shading AMD is just another Intel cheap shot. That company has problems.
Score: 21 Votes (Like | Disagree)
jav6454 Avatar
46 months ago
No... after this, I doubt Intel on security, and from what I gather, this stretches all the way back to the Pentium Pro.

Also, I don't care if it modifies, writes or deletes... the most improtant thing the bug allows reading
Score: 18 Votes (Like | Disagree)
longofest Avatar
46 months ago
I wonder how long Intel has known about this flaw.
I actually kind of doubt they knew about it. While AMD is not affected, it does look like ARM chips are affected. This flaw has potentially been around since Pentium Pro. If Intel knew about it, they'd have quietly fixed it rather than letting it go. I think this is just a really, really good find by the researchers.
Score: 17 Votes (Like | Disagree)

Top Stories

Pro Display XDR Yella

Apple Working on External Display With Built-In A13 Chip

Friday July 23, 2021 9:37 am PDT by
Apple is developing an external display that includes an A13 chip with Neural Engine, according to a new rumor from 9to5Mac. The A13 chip with Neural Engine would presumably serve as an eGPU, though details are light at this time. Having a CPU/GPU built into the external display could help Macs deliver high-resolution graphics without using all the resources of the computer's internal chip....
maxresdefault

Apple Music to Livestream Premiere of Kanye West's New Album 'Donda' on Thursday

Wednesday July 21, 2021 1:49 am PDT by
Apple Music on Thursday will host a global livestream for the premiere of Kanye West's tenth studio album, titled "Donda." The sold-out event will take place at the Mercedes-Benz Stadium in Atlanta, Georgia, and Apple Music's livestream will start at 8:00 p.m. Eastern Time. The livestream was revealed in a Beats Studio Buds ad that aired during the NBA Finals. The ad features U.S. track...
airpods 3 gizmochina Feature

AirPods 3 Rumored to Launch Alongside iPhone 13 at Expected September Event

Friday July 23, 2021 12:54 am PDT by
The third-generation AirPods will likely launch at the same event revealing Apple's upcoming iPhone 13 lineup, according to a report from DigiTimes, which makes the claim citing sources familiar with the matter. The report as a whole echoes previous reporting that production of the third-generation AirPods will kickstart in August, meaning a launch shortly after can be easily expected. DigiTi...
idos 2 app ios

Apple to Pull 'iDOS 2' DOS Emulator From App Store

Thursday July 22, 2021 3:22 pm PDT by
iDOS 2, an app designed to allow users to play classic DOS games, will soon be pulled from the App Store, the app's creator said today. According to iDOS developer Chaoji Li, he tried to submit an iDOS update with bug fixes to the App Store, but was told that the update was rejected because it violated the 2.5.2 App Store guideline that says apps cannot install or launch executable code.Durin...
iPad mini pro feature

Next iPad Mini Won't Feature Mini-LED Display, Claims Display Analyst

Friday July 23, 2021 8:07 am PDT by
Yesterday, DigiTimes claimed that the upcoming iPad mini will feature a mini-LED display, but now, display analyst Ross Young is going at odds with that report, claiming that while the updated iPad mini continues to be on track for a release this year, it won't feature a mini-LED display. Young says he "confirmed" with Radiant Opto-Electronics, who DigiTimes claims would provide Apple with...
AirPods Pro Beta Firmware

AirPods Pro Beta Firmware Now Available

Wednesday July 21, 2021 6:50 am PDT by
Upcoming AirPods Pro firmware updates are now available to Apple Developer Program members as beta versions. AirPods Pro firmware beta one features FaceTime Spatial Audio and Ambient Noise Reduction. Custom Transparency mode, including Conversation Boost, was initially expected to be included in the beta but appears to have been delayed for a later version. Apple made the announcement...
iPad mini pro feature

Next-Generation iPad Mini Will Reportedly Feature a Mini-LED Display

Thursday July 22, 2021 9:03 am PDT by
Apple is widely rumored to be planning a new iPad mini with a significant redesign, including a larger 8.5-inch to 9-inch display with slimmer bezels, a Touch ID power button instead of a home button, a USB-C port instead of a Lightning connector, and more. According to a paywalled preview of a DigiTimes report today, the sixth-generation iPad mini will also feature a mini-LED display:BLU...
discount m1 macbook yellow

Deals: Shop Record Low Prices Across Apple's Full MacBook Pro and MacBook Air Lineup (Up to $499 Off)

Friday July 23, 2021 8:23 am PDT by
Apple's MacBook Pro and MacBook Air lineup is seeing all-time low discounts across the board today, including the 2019 16-inch MacBook Pro, 2020 13-inch MacBook Air, and 2020 13-inch MacBook Pro. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. 13-Inch M1...
ios wifi settings

Apple Confirms iOS 14.7 Fixes WiFi Bug and Many Other Vulnerabilities

Wednesday July 21, 2021 11:38 am PDT by
Following the release of iPadOS 14.7 this morning, Apple has shared details on the security updates that are included in iOS 14.7, iPadOS 14.7, macOS Big Sur 11.5, watchOS 7.6, and tvOS 14.7, all of which came out this week. Notably, Apple's documentation confirms that the iOS 14.7 and iPadOS 14.7 updates address a WiFi-related vulnerability that could impact iOS devices when joining a...
macOS Big Sur Feature Orange

Apple Releases macOS Big Sur 11.5 With Podcast App Updates and Bug Fixes

Wednesday July 21, 2021 10:15 am PDT by
Apple today released macOS Big Sur 11.5, the fifth major update to the macOS Big Sur operating system that launched in November 2020. macOS Big Sur 11.5 comes two months after the release of macOS Big Sur 11.4. The new ‌‌‌‌‌macOS Big Sur‌‌‌‌ 11.5 update can be downloaded for free on all eligible Macs using the Software Update section of System Preferences. macOS Big Sur...