This tag is for questions specific to the so-called "spectre" processor vulnerability and its mitigation.

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What versions of Windows use the PCID feature to speed up Meltdown patch?

I have Windows 7 Enterprise SP1 64 bit with an Intel i7-6820HQ (with latest microcode rev 0xC6) and InSpectre #8 says I have both protections, but SLOWER.Is it because Windows 7 does not use the ...
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23 views

Oracle Linux Spectre-V2 (CVE-2017-5715) Vulnerability Mitigation

I have 2 virtual machines that is Oracle Linux 6.9. I updated both of them to same kernel version and same other packages versions from same local repository (central repository server in our dc). But ...
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1answer
85 views

How to install macOS software from source to mitigate Spectre 2?

I attended a presentation on Spectre and Meltdown by a UCL professor. He suggested several ways to mitigate Spectre 2 (Branch Target Injection) by upgrading to High Sierra and installing all software ...
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107 views

Analyze Spectre and Meltdown Check Script by Red Hat

As you know Red Hat published a script to check the vulnerability of the system to Spectre and Meltdown. Kernel upgrade and activation/deactivation of some features is enough for avoid from these ...
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823 views

How can I set “generic retpoline” as default because LFENCE does not serialize on my PC?

I have Fedora 27 installed on my laptop with an older AMD CPU (AMD Turion X2 mobile processor RM-75 / 2.2 GHz). The following error message appears every time I boot:Spectre V2: Spectre mitigation: ...
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Were any open source/hardware CPUs affected by Spectre?

I am curious if any open hardware CPUs were affected by Spectre or Meltdown. However, I cant seem to find any confirmation that any were or were not affected.
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56 views

What to do with a i5-5200U CPU running Win 8.1 in regards to Spectre and Meltdown?

I have a Lenovo g50-80 with an Intel i5-5200U CPU running Windows 8.1 64bits with all updates installed and no new updates available (only 2 optional ones that are irrelevant here). I just ran ...
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1answer
166 views

Meltdown and Spectre: practical advantages and disadvantages for users? (security and performances) [closed]

I was guessing which could be the practical downsides of the patches for these risks and also if a user decides to not apply these patches.Preamble:In the middle of January I bought a refurbished ...
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1k views

can the spectre security vulnerability be in a virtual machine?

Is it possible that a virtual machine like VirtualBox has the security vulnerability "spectre"?I think the VM maybe does out-of-order execution, but in my opinion it is not possible to peek at the ...
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2answers
163 views

Internet Explorer Inoperable after Meltdown/Spectre Patches in Windows 10

This started happening shortly after Meltdown/Spectre was in the news. I've tried:Uninstalling and reinstalling IE.Resetting IE settingsUninstalling KB4056892.Searching yields results for AMD ...
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1answer
135 views

Is KB4056759 part of Meltdown and spectre update fix?

I can't tell if it is part of Meltdown and Spectre. MS site says its a fix for "An elevation of privilege vulnerability exists in the Microsoft Server Message Block (SMB)".But a couple of sites link ...
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Linux Server reboots unreasonably

After applying Meltdown and Specter fix for Linux my openSUSE Leap 42.3 server began to reboot unreasonably. It can work 1 day and then reboot or it can work for 15 mins after the last restart and ...
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1answer
448 views

Windows 10 LTSB v. 1607 & Spectre: Still no OS support for mitigation

I've got a Dell XPS 15 9560 running Windows 10 LTSB 2016 (build 1607). The CPU is an Intel i7 7700HQ. For nearly a month now, I've been trying to ensure that this machine is protected against the ...
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1answer
151 views

Which memory can be accessed using Meltdown and Spectre v1/v2?

I understand that Meltdown can access kernel memory as the programs on Windows at least share the same virtual memory space. We have a patch for this to unmap as much kernel data as possible. Can ...
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132 views

how to update godaddy Dedicated linux server centos 6.9 kernel

I have dedicated server from godaddy.The Linux information is as follows.Version: CentOS release 6.9 (Final)Kernel: 2.6.32-042stab111.11I have executed "yum update" on server and now /boot shows ...

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