- wlug - University of Waikato Mail Lists

Torvalds Opposes Tying UEFI Secure Boot to Kernel Lockdown Mode
by Peter Reutemann 07 Apr '18

07 Apr '18

'The kernel lockdown feature further restricts access to the kernel by user-space with what can be accessed or modified... Pairing that with UEFI SecureBoot unconditionally is meeting some resistance by Linus Torvalds. The goal of kernel lockdown, which Linus Torvalds doesn't have a problem with at all, comes down to "prevent both direct and indirect access to a running kernel image, attempting to protect against unauthorised modification of the kernel image and to prevent access to security and cryptographic data located in kernel memory, whilst still permitting driver modules to be loaded." But what has the Linux kernel creator upset with are developers trying to pair this unconditionally with UEFI SecureBoot. Linus describes Secure Boot as being "pushed in your face by people with an agenda." But his real problem is that Secure Boot would then imply Kernel Lockdown mode... "Tying these things magically together IS A BAD IDEA."' -- source: https://linux.slashdot.org/story/18/04/07/2159245 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Programmer Unveils OpenGL Bindings for Bash
by Peter Reutemann 07 Apr '18

07 Apr '18

'Compiled languages have long provided access to the OpenGL API, and even most scripting languages have had OpenGL bindings for a decade or more. But, one significant language missing from the list is our old friend/nemesis Bash. But worry no longer! Now you can create your dazzling 3D visuals right from the comfort of your command line! "You'll need a system with both Bash and OpenGL support to experience it firsthand," explains software engineer Michael Conrad, who created the first version 13 years ago as "the sixth in a series of 'Abuse of Technology' projects," after "having my technical sensibilities offended that someone had written a real-time video game in Perl. "Back then, my primary language was C++, and I was studying OpenGL for video game purposes. I declared to my friends that the only thing worse would be if it had been 3D and written in Bash. Having said the idea out loud, it kept prodding me, and I eventually decided to give it a try to one-up the 'awfulness'..."' -- source: https://developers.slashdot.org/story/18/04/07/0035203 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Intel drops plans to develop Spectre microcode for ancient chips
by Peter Reutemann 04 Apr '18

04 Apr '18

'Intel has scaled back its plans to produce microcode updates for some of its older processors to address the "Spectre variant 2" attack. Core 2 processors are no longer scheduled to receive updates, and, while some first generation Core products have microcode updates available already, others have had their update cancelled.' -- source: https://arstechnica.com/gadgets/2018/04/intel-drops-plans-to-develop-spectr… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Fedora 28 Beta Linux Distro is Finally Here
by Peter Reutemann 03 Apr '18

03 Apr '18

'Today, version 28 of the Fedora finally achieves beta status. After a short delay -- it was scheduled to be available a week earlier -- the distro is back on track, and looking better than ever. As is typical now, there are three versions of the operating system -- Atomic Host, Server, and Workstation. While all three have their places, normal desktop computer users will want to focus on Workstation. While there are plenty of new features (and bugs), the most exciting aspect of Fedora 28 Workstation is the inclusion of the GNOME 3.28 desktop environment.' -- source: https://linux.slashdot.org/story/18/04/03/1846233 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Linux Kernel To Lose A Few Architectures
by Lawrence D'Oliveiro 03 Apr '18

03 Apr '18

Looking at the source code <https://elixir.bootlin.com/linux/latest/source/> for the latest (4.16) Linux kernel, I see support for 31 different major processor architectures currently <https://elixir.bootlin.com/linux/latest/source/arch>. However, the next, 4.17 kernel is due to drop the ability to run on 8 of them <http://www.theregister.co.uk/2018/04/03/linux_kernel_4_16_released/>, due to the fact that nobody is using them any more--or at least, nobody with an interest in implementing new kernels <http://lkml.iu.edu/hypermail/linux/kernel/1804.0/00306.html>. Interesting to read Arnd Bergmann’s observations on what these dead-end architectures have in common: In the end, it seems that while the eight architectures are extremely different, they all suffered the same fate: There was one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem, which was more costly than licensing newer off-the-shelf CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems that all the SoC product lines are still around, but have not used the custom CPU architectures for several years at this point. In contrast, CPU instruction sets that remain popular and have actively maintained kernel ports tend to all be used across multiple licensees.

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Adobe Is Helping Some 60 Companies Track People Across Devices
by Peter Reutemann 31 Mar '18

31 Mar '18

'Neowin reports of Adobe's recent announcement of its new Marketing Cloud Device Co-op initiative: The announcement of the new solution for tracking customers across devices was made at the Adobe Summit this week in Las Vegas to a digital marketing conference. According to an Adobe blog post released earlier this month citing Forrester, consumers are increasingly accessing multiple devices before making a purchase decision -- an average of 5.5 connected devices per person. This behavior creates a challenge for retailers, who cannot easily target people in their marketing campaigns, ultimately depending on Facebook or Google to track people instead of devices. Both Facebook and Google are able to do this job because of the massive amount of users logged into their ecosystems regularly, so most retailers have been opting to use those platforms as a way to reach potential customers. But Adobe's approach is to provide a platform agnostic solution acting as a glue between the world's biggest brands' own data management platforms. In order for Device Co-op to work, each company that has joined the initiative will provide Adobe with "cryptographically hashed login IDs" and HTTP header data, which Adobe claims will completely hide the customer's identity. This data will be used to create groups of devices used by the same person or household, which will then be made available to all the members of the initiative so they can target people on different devices, instead of creating one customer profile per device, as can be seen from the example given in the image above. Until now, some 60 companies have joined the Adobe initiative, including brands such as Subway, Sprint, NFL, Lenovo, Intel, Barnes & Noble, and Subaru. Also, preliminary measurements made by Adobe indicate that Device Co-op could link up to 1.2 billion devices worldwide, based on the amount of accesses seen by current members. But it is important to note that the initiative is currently collecting data of U.S. and Canada users only. Adobe is claiming the initiative will not disclose a user's identity to its members, including any personal data, but, given the recent Facebook and Cambridge Analytica scandal, many will be skeptical of those claims. Thankfully, Adobe is allowing users to completely opt out all of their devices from the services via this website.' -- source: https://yro.slashdot.org/story/18/03/31/0059259 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The Prestigious Free Software Award Goes to Karen Sandler
by Peter Reutemann 31 Mar '18

31 Mar '18

'Each year the Free Software award goes to someone making "a great contribution to the progress and development of free software, through activities that accord with the spirit of free software." This year's winner is a former executive of the GNOME Foundation, Karen Sandler. Jeremy Allison - Sam, Slashdot reader #8,157, brought this announcement. Richard Stallman, President of the FSF, presented Sandler with the award during a ceremony. Stallman highlighted Sandler's dedication to software freedom. Stallman told the crowd that Sandler's "vivid warning about backdoored nonfree software in implanted medical devices has brought the issue home to people who never wrote a line of code. Her efforts, usually not in the public eye, to provide pro bono legal advice to free software organizations and [with Software Freedom Conservancy] to organize infrastructure for free software projects and copyleft defense, have been equally helpful." In her acceptance speech, Sandler spoke about her dedication to free software as a patient, advocate and professional. "Coming to terms with a dangerous heart condition should never have cost me fundamental control over the technology that my life relies on", said Sandler... "This issue is personal not just for me but for anyone who relies on software, and today that means every single person." ' -- source: https://news.slashdot.org/story/18/03/31/0322217 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Security Experts See Chromebooks as a Closed Ecosystem That Improves Security
by Peter Reutemann 31 Mar '18

31 Mar '18

'The founder of Rendition Security believes his daughter "is more safe on a Chromebook than a Windows laptop," and he's not the only one. CNET's staff reporter argues that Google's push for simplicity, speed, and security "ended up playing off each other." mspohr shared this article: Heading to my first security conference last year, I expected to see a tricked-out laptop running on a virtual machine with a private network and security USB keys sticking out -- perhaps something out of a scene from "Mr. Robot." That's not what I got. Everywhere I went I'd see small groups of people carrying Chromebooks, and they'd tell me that when heading into unknown territory it was their travel device... "If you want prehardened security, then Chromebooks are it," said Kenneth White, director of the Open Crypto Audit Project. "Not because they're Google, but because Chrome OS was developed for years and it explicitly had web security as a core design principle...." Drewry and Liu focused on four key features for the Chromebook that have been available ever since the first iteration in 2010: sandboxing, verified boots, power washing and quick updates. These provided security features that made it much harder for malware to pass through, while providing a quick fix-it button if it ever did. That's not to say Chrome OS is impervious to malware. Cybercriminals have figured out loopholes through Chrome's extensions, like when 37,000 devices were hit by the fake version of AdBlock Plus. Malicious Android apps have also been able to sneak through the Play Store. But Chrome OS users mostly avoided massive cyberattack campaigns like getting locked up with ransomware or hijacked to become part of a botnet. Major security flaws for Chrome OS, like ones that would give an attacker complete control, are so rare that Google offers rewards up to $200,000 to anyone who can hack the system. The article argues that "Fewer software choices mean limited options for hackers. Those are some of the benefits that have led security researchers to warm up to the laptops... "Chrome OS takes an approach to security that's similar to the one Apple takes with iOS and its closed ecosystem."' -- source: https://tech.slashdot.org/story/18/03/31/0443257 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Open Source RISC V Processor Gets Support From Google, Samsung, Qualcomm, and Tesla
by Peter Reutemann 31 Mar '18

31 Mar '18

'Google, Qualcomm, and Samsung "are among 80 tech companies joining forces to develop a new open-source chip design for new technologies like self-driving vehicles," writes Seeking Alpha, citing a (pay-walled) report on The Information. "Western Digital and Nvidia also plan to use the new chip design for some of their products," while Tesla "has joined the RISC-V Foundation and is considering using the tech in its new chip efforts." MIT Technology Review adds that while Arm had hoped to bring their low-power/high performance processors to AI and self-driving cars, "The company that masterminded the processor inside your smartphone may find that a set of free-to-use alternative designs erode some of its future success."' -- source: https://news.slashdot.org/story/18/03/31/0622248 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Microsoft's Windows 7 Meltdown Fixes From January and February Made PCs More Insecure
by Peter Reutemann 29 Mar '18

29 Mar '18

'Microsoft's January and February security fixes for Intel's Meltdown processor vulnerability opened up an even worse security hole on Windows 7 PCs and Server 2008 R2 boxes. From a report: This is according to researcher Ulf Frisk, who previously found glaring shortcomings in Apple's FileVault disk encryption system. We're told Redmond's early Meltdown fixes for 64-bit Windows 7 and Server 2008 R2 left a crucial kernel memory table readable and writable for normal user processes. This, in turn, means any malware on those vulnerable machines, or any logged-in user, can manipulate the operating system's memory map, gain administrator-level privileges, and extract and modify any information in RAM. The Meltdown chip-level bug allows malicious software, or unscrupulous logged-in users, on a modern Intel-powered machine to read passwords, personal information, and other secrets from protected kernel memory. But the security fixes from Microsoft for the bug, on Windows 7 and Server 2008 R2, issued in January and February, ended up granting normal programs read and write access to all of physical memory' -- source: https://tech.slashdot.org/story/18/03/28/2010240 Time to move to another operating system... Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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