Those are pretty aggressive vulnerabilities! Glad they got patched, I'll have to check the old family computer to get the patch. She's a 2010 iMac so I don't have high Sierra because I'm concerned it will cripple it.
As far as I understand it, Spectre (and possibly meltdown as well) depends on accurate timing information, so they have reduced the precision of the Javscript time call. Maybe Apple have done the same with Safari? That would at least stop a Javascript attack.I thought Spectre had no effective mitigation. I wonder what they are adding to Safari to protect against it?
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Yeah, I also was wondering about the PowerPC chips being affected by these Meltdown and Spectre vulnerabilities.
Just downgraded back to Sierra, because High Sierra was anything but High (Performance). Man, did i regret the upgrade.. And now i'm not reading anything about older MacOS versions being updated, what's up with that? Is Apple telling us that a one year old OS isn't supported anymore? That's rediculous!
No they are not. Because they can be fixed in software (with a small performance hit). So like before, if you don't update you are vulnerable, if you update you aren't.
I thought meltdown only affects Intel processors. Why would iOS have to patch for this?
**Edited for the reason I asked**
https://www.theguardian.com/technol...uter-processor-intel-security-flaws-explainer
Worry is a waste of time and energy. Use that energy to rally the troops to initiate a recall or a refund.I am still running 10.9 and iOS 10 and I can not currently upgrade for many different reasons... not to mention 10.12 on my newer macbook pro. I really feel they should release a secuirty patch for this. It will cost them nothing and saves everyone unable to upgrade big time...
Can someone tell me how worried should I be?
Worry is a waste of time and energy. Use that energy to rally the troops to initiate a recall or a refund.
This is a real problem that extends beyond this particular security threat.
When did Apple know? Did Apple keep selling systems long after they knew without implementing the “fix” knowing there would be performance hits?
Could this be another Volkswagen emissions debacle?
Everyone is like "Apple should switch to AMD." Ryzen builds that I have diagnosed because of issues are horrible. Apple should stick to Intel and thats it until AMD fixes the issues with their processors. AMD processors are just as affected as Intel with the Spectre flaw.
These flaws are the primary reason why my some of my Computer Science professors hate Intel, AMD, and ARM CPU designs.
Thanks.
Wondered if the G3 and G4 chips are also affected.
I heard that IBM processors aren't affected but I could be wrong.
Where are the Apple cheerleaders who were chastising Intel for this hardware flaw?
It's pretty clear Apple processors are affected as well. Where's chastising now for Apple?
They patched Sierra, too. Go look at the retroactively updated security notes for the last release.So Apple has patched High Sierra 10.13.2. Great news except for those of us still on Sierra either because we cannot migrate or because High Sierra still feels like it's in beta.
Anyone know where to find those wallpapers?
Apple today confirmed that it has addressed the recent "Meltdown" vulnerability in previously released iOS 11.2, macOS 10.13.2, and tvOS 11.2 updates, with additional fixes coming to Safari in the near future to defend against the "Spectre" vulnerability.
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Apple has also confirmed that the two vulnerabilities affect all Mac and iOS devices. The company's full statement, available through a new support document covering Meltdown and Spectre, is below:Apple's statement does not make it clear if these vulnerabilities have been addressed in older versions of iOS and Mac, but for Macs, there were security updates for older versions of macOS released alongside macOS 10.13.2, so it's possible fixes are already available for Sierra and El Capitan.
News of the Spectre and Meltdown vulnerabilities first came to light this week, but Intel and major operating system vendors like Apple, Linux, and Microsoft have known about the issue for several months and worked to prepare a fix before the security flaws were publicly shared.
Spectre and Meltdown are serious vulnerabilities that take advantage of the speculative execution mechanism of a CPU. As these use hardware-based flaws, operating system manufacturers are required to implement software workarounds. These software workarounds can impact processor performance, but Intel has insisted every day users will not see serious slowdowns. Apple also says that no measurable impact has been detected in macOS and iOS.The Meltdown vulnerability allows a malicious program to read kernel memory, accessing data like passwords, emails, documents, photos, and more. Meltdown can be exploited to read the entire physical memory of a target machine. The vulnerability is particularly problematic for cloud-based services.
Spectre, which covers two exploitation techniques, breaks the isolation between different applications. Apple says that while the Spectre vulnerability is difficult to exploit, it can be done using JavaScript in a web browser. Apple plans to release Safari updates for macOS and iOS to prevent Spectre-based exploits.
As with the Meltdown vulnerability, Apple says the upcoming Safari mitigations will have "no measurable impact" on Speedometer and ARES-6 tests, and an impat of less than 2.5% on the JetStream benchmark.
Apple says it will continue to test further mitigations for Spectre and will release them in future versions of iOS, macOS, tvOS, and watchOS.
Article Link: Apple Confirms 'Meltdown' and 'Spectre' Vulnerabilities Impact All Macs and iOS Devices, Some Fixes Already Released
OS X 10.9 Mavericks is now outside of the support windows as it appears OS X 10.10 Yosemite is as well. One of my Macs is a 24" Early 2008 iMac and although supported by Apple at the moment as it runs OS X 10.11 El Capitan it cannot officially run any release beyond that therefore once El Capitan reaches end of life it will be left wide open to such vulnerabilities at which time it may be worth me considering creating a Linux partition for carrying out sensitive work such as online banking.I am still running 10.9 and iOS 10 and I can not currently upgrade for many different reasons... not to mention 10.12 on my newer macbook pro. I really feel they should release a secuirty patch for this. It will cost them nothing and saves everyone unable to upgrade big time...
Can someone tell me how worried should I be?