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Security: Currencies, Marcus Hutchins, and Hardware Bugs

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Security
  • Hot New Cryptocurrency Trend: Mining Malware That Could Fry Your Phone
  • PyCryptoMiner Attacks Linux Machines And Turns Them Into Monero-mining Bots
  • Marcus Hutchins' lawyers seek information around arrest

    Lawyers acting for British security researcher Marcus Hutchins have filed a motion seeking additional information on a number of aspects surrounding his arrest in order to prepare for a trial that is expected to take place this year.

  • AMD Did NOT Disable Branch Prediction With A Zen Microcode Update

    With the plethora of software security updates coming out over the past few days in the wake of the Meltdown and Spectre disclosure, released by SUSE was a Family 17h "Zen" CPU microcode update that we have yet to see elsewhere... It claims to disables branch prediction, but I've confirmed with AMD that is not actually the case.

    AMD did post a processor security notice where they noted their hardware was not vulnerable to variant threee / rogue data cache load, for the "branch target injection" variant that there was "near zero risk" for exploiting, and with the bounds check bypass it would be resolved by software/OS updates.

  • Spectre and Meltdown Attacks Against Microprocessors

    "Throw it away and buy a new one" is ridiculous security advice, but it's what US-CERT recommends. It is also unworkable. The problem is that there isn't anything to buy that isn't vulnerable. Pretty much every major processor made in the past 20 years is vulnerable to some flavor of these vulnerabilities. Patching against Meltdown can degrade performance by almost a third. And there's no patch for Spectre; the microprocessors have to be redesigned to prevent the attack, and that will take years. (Here's a running list of who's patched what.)

  • OpenBSD & FreeBSD Are Still Formulating Kernel Plans To Address Meltdown+Spectre

    On Friday DragonFlyBSD's Matthew Dillon already landed his DragonFly kernel fixes for the Meltdown vulnerability affecting Intel CPUs. But what about the other BSDs?

    As outlined in that article yesterday, DragonFlyBSD founder Matthew Dillon quickly worked through better kernel/user separation with their code to address the Intel CPU bug. Similar to Linux, the DragonFlyBSD fix should cause minimal to small CPU performance impact for most workloads while system call heavy / interrupt-heavy workloads (like I/O and databases) could see more significant drops.

  • Retpoline v5 Published For Fending Off Spectre Branch Target Injection

    David Woodhouse of Amazon has sent out the latest quickly-revising patches for introducing the "Retpoline" functionality to the Linux kernel for mitigating the Spectre "variant 2" attack.

    Retpoline v5 is the latest as of Saturday morning as the ongoing effort for avoiding speculative indirect calls within the Linux kernel for preventing a branch target injection style attack. These 200+ lines of kernel code paired with the GCC Retpoline patches are able to address vulnerable indirect branches in the Linux kernel.

    The Retpoline approach is said to only have up to a ~1.5% performance hit when patched... I hope this weekend to get around to trying these kernel and GCC patches on some of my systems for looking at the performance impact in our commonly benchmarked workloads. The Retpoline work is separate from the KPTI page table isolation work for addressing the Intel CPU Meltdown issue.

  • Intel hit with three class-action lawsuits over chip flaws
  • Meltdown, aka "Dear Intel, you suck"

    We have received *no* non-public information. I've seen posts elsewhere by other *BSD people implying that they receive little or no prior warning, so I have no reason to believe this was specific to OpenBSD and/or our philosophy. Personally, I do find it....amusing? that public announcements were moved up after the issue was deduced from development discussions and commits to a different open source OS project. Aren't we all glad that this was under embargo and strongly believe in the future value of embargoes?

  • Hack-proof Quantum Data Encryption

More in Tux Machines

GPL Violations: Grsecurity Carries on Bullying Bruce Perens, Israel Complies with AGPL, Xiaomi Violates GPL

  • Linux's Grsecurity dev team takes blog 'libel' fight to higher court
    Open Source Security, Inc., the maker of the Grsecurity Linux kernel patches, suffered a setback last month when San Francisco magistrate judge Laurel Beeler granted a motion by defendant Bruce Perens to dismiss the company's defamation claim, with the proviso that the tossed legal challenge could be amended. The code biz and its president Brad Spengler sued Perens over a blog post in June in which Perens said that using the firm's Grsecurity software could expose customers to a contributory infringement claim under the terms of the Linux kernel's GPLv2 license. Open Source Security contends that statement has damaged its business.
  • Israel’s Information and Communications Technology Authority Bows to Pressure to Comply with Affero GPL
    Under pressure from open source advocates, the Israeli Information and Communications Technology (ICT) Authority recently shared its first open source software, extensions made by the ICT Authority to the CKAN data portal platform to help make the platform usable in Hebrew. The CKAN software is an open source data portal platform used since 2016 by the ICT Authority to make Israeli government data open and available on its government database website. The CKAN software is licensed under the GNU AGPL Version 3 license, an “ultra-strong” open source license that requires users of modified versions of CKAN software to offer its source code, even in the absence of distribution, to users interacting with software over the Internet.
  • Xiaomi Violating GPL 2.0 License With Mi A1 Kernel Sources
    Xiaomi is in violation of the GPL 2.0 license of the Linux Kernel project by still not releasing the kernel sources for the Mi A1 Android One and has been publicly criticized on the matter by established Android developer Francisco Franco earlier this week. While the smartphone was released in September and the Chinese consumer electronics manufacturer’s official policy is to publicize kernel sources for its devices within three months of their market launch, the Android One edition of the Mi A1 remains undetailed in this regard. Mr. Franco — best known for his work on the Franco Kernel, one of the most popular custom OS cores in the Android ecosystem — had some harsh words for the company on Twitter, calling its laidback approach to publicizing the kernel sources for the Mi A1 “an embarrassment” for the open source community and the type of software it allows it to create its commercial devices in the first place.

Security: Updates, Secure Contexts, EFF, Google, Fedora

today's howtos

Introducing my new friend: a Slimbook

I have been following Slimbook for some time now. As you probably know, they ship a KDE laptop that is very cool, with KDE Neon pre-installed. They have attended to a couple of events I have attended to so I have been able to test their laptops, get feedback from buyers and ask them questions directly. The fact that they are a Spanish company was a beautiful surprise, We do not have that many hardware integrators and vendors in Spain. But what definitely caught my attention was the fact that they pay a lot of attention to the software. They ship the laptops with Linux pre-installed. Ok, that is not new any more. But they do pre-install several different distros. Now, that’s uncommon. But news do not stop there. Read more