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today's leftovers

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  • Daffodil Promoted To Being An Apache Top-Level Project

    Following the recent promotions of DataSketches and ECharts, the Apache Software Foundation has promoted Daffodil as their newest top-level project. Apache Daffodil is an open-source universal interchange implementation of the Data Format Description Language (DFDL).

    The Data Format Description Language (DFDL) standard is a modeling language for text and binary data in a standardized manner. DFDL basically aims to make data more portable thanks to providing an open framework for describing any data format.

  • At Least 30,000 U.S. Organizations Newly Hacked Via Holes in Microsoft’s Email Software

    At least 30,000 organizations across the United States — including a significant number of small businesses, towns, cities and local governments — have over the past few days been hacked by an unusually aggressive Chinese cyber espionage unit that’s focused on stealing email from victim organizations, multiple sources tell KrebsOnSecurity. The espionage group is exploiting four newly-discovered flaws in Microsoft Exchange Server email software, and has seeded hundreds of thousands of victim organizations worldwide with tools that give the attackers total, remote control over affected systems.

  • Linux Developers Continue Discussing "SLS" Mitigation For The Kernel - Phoronix

    Disclosed by Arm last summer was the Straight Line Speculation (SLS) vulnerability and they were quick to introduce new safeguards against SLS in the GCC and LLVM compilers. The compiler-based mitigations to straight-line speculation involves adding speculation barrier sequences around the vulnerable instructions to prevent speculatively executing instructions around changes in control flow. While compiler developers were quick to add the options, so far the Linux kernel developers are in disagreement still over its importance and the proposed patches that would flip on this option when compiling the ARM Linux kernel.

    While compiler support is out there for hardening against straight-line speculation on ARM, seeing these options utilized by potentially affected software hasn't been so quick. In February there were Google engineers proposing a kernel option for enabling the ARM SLS mitigation. The kernel patch is for basically enabling the "-mharden-sls=" compiler option for inserting speculation barrier (SB) instructions or otherwise DSB+ISB instructions around the instructions vulnerable to SLS.

More in Tux Machines

Android Leftovers

Best Free Android Apps: Joplin – note taking and to-do application

There’s a strict eligibility criteria for inclusion in this series. See the Eligibility Criteria section below. Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organized into notebooks. The notes are searchable, can be copied, tagged and modified. Read more

How I digitized my CD collection with open source tools

The restrictions on getting out and about during the pandemic occasionally remind me that time is slipping by—although some days, "slipping" doesn't quite feel like the right word. But it also reminds me there are more than a few tasks around the house that can be great for restoring the sense of accomplishment that so many of us have missed. One such task, in my home anyway, is converting our CD collection to FLAC and storing the files on our music server's hard drive. Considering we don't have a huge collection (at least, by some people's standards), I'm surprised we still have so many CDs awaiting conversion—even excluding all the ones that fail to impress and therefore don't merit the effort. Read more

Hyperbola Linux Review: Systemd-Free Arch With Linux-libre Kernel

In the last month of 2019, the Hyperbola project took a major decision of ditching Linux in favor of OpenBSD. We also had a chat with Hyperbola co-founder Andre Silva, who detailed the reason for dropping Hyperbola OS and starting a new HyperbolaBSD. HyperbolaBSD is still under development and its alpha release will be ready by September 2021 for initial testing. The current Hyperbola GNU/Linux-libre v0.3.1 Milky Way will be supported until the legacy Linux-libre kernel reaches the end of life in 2022. I thought of giving it a try before it goes away and switches to BSD completely. Read more