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Meltdown Patches and Problems

Filed under
Security
Ubuntu
  • [Ubuntu] Meltdown and Spectre Status Update

    On Tuesday, January 9, 2018 we released Ubuntu kernel updates for mitigation of CVE-2017-5754 (aka Meltdown / Variant 3) for the x86-64 architecture.

  • Lubuntu 17.10.1 (Artful Aardvark) released!

    Lubuntu 17.10.1 has been released to fix a major problem affecting many Lenovo laptops that causes the computer to have BIOS problems after installing. You can find more details about this problem here.

    Please note that the Meltdown and Spectre vulnerabilities have not been fixed in this ISO, so we advise that if you install this ISO, update directly after.

    This release is no different in terms of features from the 17.10 release, and is comparable to an LTS point release in that all updates since the 17.10 release have been rolled into this ISO. You can find the initial announcement here.

  • Check Linux for Spectre or Meltdown vulnerability

    Devices running Linux are affected by Spectre and Meltdown vulnerabilities as much as their Windows counterparts.

    Development teams work on updated kernels for the various distributions, and users need to update browsers and other software to protect data against potential attacks.

    We talked about identifying whether your Windows PC or web browser is vulnerable already. A recently published script does the same for Linux systems. You may use it to check whether your Linux distribution is vulnerable.

  • Meltdown Patch Is Causing Problems for Some Ubuntu Linux Users

    Many Ubuntu Linux users who installed the latest kernel updates to fix the Meltdown CPU vulnerability found themselves stuck in a boot loop and had to revert back to a previous version.

    The problem affected mostly Ubuntu 16.04 (Xenial Xerus), which is a long-term support (LTS) release. Soon after the 4.4.0-108 kernel update was released to fix the Meltdown vulnerability, users flooded the Ubuntu Forums and bug tracker to report booting problems.

  • Meltdown Update Kernel doesnt boot
  • Major Linux distros have Meltdown patches, but that's only part of the fix

    The Intel Meltdown security problem is the pain that just keeps hurting. Still, there is some good news. Ubuntu and Debian Linux have patched their distributions. The bad news? It's becoming clearer than ever that fixing Meltdown causes significant performance problems. Worst still, many older servers and appliances are running insecure, unpatchable Linux distributions.

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FOSS in Digital Currencies

  • Braiins OS: An Open Source Alternative to Bitcoin Mining Firmware
    The company behind Slush Pool recently rolled out the initial release of its ASIC miner firmware: Braiins OS. The operating system is advertised as “the very first fully open-source, Linux-based system for cryptocurrency embedded devices,” an alternative to the factory-default firmware that comes with most popular mining hardware. Upon visiting the project’s website, visitors are greeted with a clear message, a mantra that resonates with its related industry’s ethos: “Take back control.”
  • Cryptoexchange Coinbase open sources its security scanner tool Salus
    The renowned United States-based cryptocurrency exchange, Coinbase always focuses on the security of its platform. Moreover, it has developed novel solutions to implementing security protocols to further strengthen their security. Furthermore, just recently, they announced that they are listing their security scanner execution tool, Salus as open source.
  • Crypto Exchange Coinbase Open-Sources Its Security Scaling Tool
    U.S.-based cryptocurrency exchange Coinbase is making a recently developed automated security scaling tool available to the public. Called Salus, after the Roman the goddess of safety and well-being, the program can automatically choose to run and configure different security scanners and issue a report on the results, according to a Thursday blog post from Coinbase developer Julian Borrey. Available as an open-source tool on GitHub from today, Salus is said to offer the advantage of being able to centrally coordinate security scans across a large number of software storage repositories, avoiding having to configure a scanner for each different project.

Suddenly Linux runs in Android

Yes, Android is based on a modified version of the Linux kernel. But once you’ve got Android running, you can utilize this app to get Linux running inside Android. But why, you might be asking – why would you want to do that? If you have to ask, you might just want to turn back now. With this app, users are able to run Debian or Ubuntu, games like Adventure or Zork, and Math systems like Gnuplot, Octave, and R. UserLand allows one Session at a time and can also monitor filesystems. If you’re looking for a graphical interface, and not just a command line system, you might want to take a peek at the operating system Android. In other words: This is mostly just for fun, and a sort of proof of concept – but it has so much potential! Read more

Linux Devices: ARM/Linux in Servers and Embedded, Chromecast