April 2021 - wlug - list.wlug.org.nz

Latest Windows Preview Build Adds Support For Linux GUI Apps
by Peter Reutemann 23 Apr '21

23 Apr '21

'While users have long been able to run Linux GUI apps on Windows by installing a separate X Server, this marks the first time that native support is available through the Windows Subsystem for Linux (WSL). Audio support and hardware acceleration are also provided, seemingly enabling a limitless set of use cases for those wishing to live the dual OS life. The change is identified in the recent preview build release along with a more in-depth discussion of the graphical subsystem now called WSLg.' -- source: https://linux.slashdot.org/story/21/04/22/1821237 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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A New Facebook Bug Exposes Millions of Email Addresses
by Peter Reutemann 23 Apr '21

23 Apr '21

'Still smarting from last month's dump of phone numbers belonging to 500 million Facebook users, the social media giant has a new privacy crisis to contend with: a tool that, on a massive scale, links Facebook accounts with their associated email addresses, even when users choose settings to keep them from being public. Wired reports: A video circulating on Tuesday showed a researcher demonstrating a tool named Facebook Email Search v1.0, which he said could link Facebook accounts to as many as 5 million email addresses per day. The researcher -- who said he went public after Facebook said it didn't think the weakness he found was "important" enough to be fixed -- fed the tool a list of 65,000 email addresses and watched what happened next. "As you can see from the output log here, I'm getting a significant amount of results from them," the researcher said as the video showed the tool crunching the address list. "I've spent maybe $10 to buy 200-odd Facebook accounts. And within three minutes, I have managed to do this for 6,000 [email] accounts." The researcher [...] said that Facebook Email Search exploited a front-end vulnerability that he reported to Facebook recently but that "they [Facebook] do not consider to be important enough to be patched." Earlier this year, Facebook had a similar vulnerability that was ultimately fixed. "This is essentially the exact same vulnerability," the researcher says. "And for some reason, despite me demonstrating this to Facebook and making them aware of it, they have told me directly that they will not be taking action against it." In a statement, Facebook said: "It appears that we erroneously closed out this bug bounty report before routing to the appropriate team. We appreciate the researcher sharing the information and are taking initial actions to mitigate this issue while we follow up to better understand their findings." A Facebook representative didn't respond to a question asking if the company told the researcher it didn't consider the vulnerability important enough to warrant a fix. The representative said Facebook engineers believe they have mitigated the leak by disabling the technique shown in the video.' -- source: https://tech.slashdot.org/story/21/04/22/2035245 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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'Mozilla Is Hellbent On Making Their New Firefox UI Unusable'
by Peter Reutemann 23 Apr '21

23 Apr '21

'Artem S. Tashkinov writes: Over the past ten years, Firefox market share has decreased substantially and the web browser has lost its appeal and coolness. Seeing that, someone at Mozilla probably decided that the best way to entice people back is by changing its UI, thus Firefox has already seen quite a huge number of changes despite other major web browsers staying relatively the same in terms of their visuals; i.e. Google Chrome and Apple Safari look almost the same as they did a decade ago. The most substantial redesign, which is being prepared for the next release, called Proton, promises to drive most power users away because it's broken on a number of levels and makes using the browser a very unpleasant experience. So, what has changed: - The compact density option for the address bar is now gone, and not only that, the title bar is now a lot taller than before. Overall, vertically, the title bar and address bar now take almost a dozen pixels more than previous Firefox releases, which steals very precious vertical space. - The floating tabs. The active tab is now totally disconnected from the active web page and it looks out of place. - The inactive tabs now completely lack a delimiter between them; and in the case of websites lacking a favicon, all inactive tabs look like one, which makes understanding what's open and what to click very difficult and time consuming. - Mozilla has removed icons from menus, which makes navigating them slower and more difficult. Human beings can easily recognize and memorize icons, and now instead you have to read 20 menu items and try to understand what you actually need to click. Just to illustrate it, check how Firefox 88 looks and what is up and coming. It surely looks like whatever UX studies Mozilla has done were either not run properly, or the data being collected was not properly understood. Mozilla has disabled feedback for Firefox, they've made it abundantly clear that you cannot leave comments in their Bugzilla, and considering they want to deprecate userChrome.css, it makes it impossible to restore the semblance of a good web browser experience. The Slashdot crowd loves free and open-source web browsers, so the question is, how can we make the company stop maiming and destroying their most important product?' -- source: https://news.slashdot.org/story/21/04/22/2021218 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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YouTube Is Now Building Its Own Video-Transcoding Chips
by Lawrence D'Oliveiro 23 Apr '21

23 Apr '21

YouTube makes videos available in a bewildering range of formats and codecs, from the cutting-edge to some old “legacy” formats that are still in common use. As new codecs become popular, it goes back and re-encodes existing videos to reduce its own bandwidth costs--this on top of the transcoding required for every new upload. It has decided that this never-ending transcoding burden now requires special-purpose hardware, and has published a paper on the subject. <https://arstechnica.com/gadgets/2021/04/youtube-is-now-building-its-own-vid…>

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Hackers Are Exploiting a Pulse Secure 0-Day To Breach Orgs Around the World
by Peter Reutemann 21 Apr '21

21 Apr '21

'Ars Technica: Hackers backed by nation-states are exploiting critical vulnerabilities in the Pulse Secure VPN to bypass two-factor authentication protections and gain stealthy access to networks belonging to a raft of organizations in the US Defense industry and elsewhere, researchers said. At least one of the security flaws is a zero-day, meaning it was unknown to Pulse Secure developers and most of the research world when hackers began actively exploiting it, security firm Mandiant said in a blog post published Tuesday. Besides CVE-2021-22893, as the zero-day is tracked, multiple hacking groups -- at least one of which likely works on behalf of the Chinese government -- are also exploiting several Pulse Secure vulnerabilities fixed in 2019 and 2020. Used alone or in concert, the security flaws allow the hackers to bypass both single-factor and multifactor authentication protecting the VPN devices. From there, the hackers can install malware that persists across software upgrades and maintain access through webshells, which are browser-based interfaces that allow hackers to remotely control infected devices. Multiple intrusions over the past six months have hit defense, government, and financial organizations around the world, Tuesday's post reported. Separately, the US Cybersecurity and Infrastructure Security Agency said that targets also include US government agencies, critical infrastructure entities, and other private sector organizations." Mandiant said that it has uncovered "limited evidence" that tied one of the hacker groups to the Chinese government. Dubbed UNC2630, this previously unknown team is one of at least two hacking groups known to be actively exploiting the vulnerabilities. Tuesday's blog post also referred to another previously unseen group that Mandiant is calling UNC2717. In March, the group used malware Mandiant identifies as RADIALPULSE, PULSEJUMP, and HARDPULSE against Pulse Secure systems at a European organization. Pulse Secure on Tuesday published an advisory instructing users how to mitigate the currently unpatched security bug.' -- source: https://it.slashdot.org/story/21/04/20/2056201 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The State Of Microsoft Visual Studio
by Lawrence D'Oliveiro 21 Apr '21

21 Apr '21

Following on from the recent and surprising (to me) news that Microsoft Visual Studio is only just about to become a 64-bit application, this analysis <https://www.theregister.com/2021/04/20/what_next_for_visual_studio/> sums up the increasing difficulty of continuing to develop Microsoft’s flagship IDE, as the market continues to move away from a Windows-centric one: Modern development is dominated by web and mobile clients and Windows is increasingly isolated as the only common platform that is not Unix-like. This can cause friction with things like line endings, filemode settings, Bash scripts ... Basically, traditional (now “legacy”) Windows-centric technologies are being inexorably left behind as Microsoft rushes to embrace the latest trends. Two examples mentioned in the article are Azure DevOps (the current incarnation of Team Foundation Server, the old corporate-level, inflexible and unfriendly version-control system that Microsoft was pushing before Git became popular) and Visual Studio Tools For Office, the framework for developing third-party addons to Microsoft Office, now being left behind in favour of web-based technologies: "My company relies on VSTO to deliver our product, and while I understand that OfficeJS is the future, we need to be able to maintain our current product for the next several years while an OfficeJS-based successor is developed. Additionally, VSTO offers capabilities that OfficeJS simply does not... I would also note that VSTO has received essentially no updates since 2010," said developer Eric Smith. This is what happens when you hitch your wagon to a proprietary star: even a big, powerful and important star can still leave you in the lurch.

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Openwall Releases 'Linux Kernel Runtime Guard' 0.9.0
by Peter Reutemann 19 Apr '21

19 Apr '21

'Long-time Slashdot reader xiando shares news from LinuxReviews: Linux Kernel Runtime Guard (LKRG) is a security module for the Linux kernel developed by Openwall. The latest release adds compatibility with Linux kernels up to soon to be released 5.12, support for building LKRG into kernel images, support for old 32-bit x86 machines and more... The Linux Kernel Runtime Guard is an out-of-tree kernel module you can install as a kernel module, or, with the 0.9.0 release, build into your Linux kernel. It does run-time integrity checks to detect security vulnerability exploits against the Linux kernel. An Openwall developer also notes in the announcement that "During LKRG development and testing I've found 7 Linux kernel bugs, 4 of them have CVE numbers."' -- source: https://news.slashdot.org/story/21/04/17/2118236 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Debian Votes to Issue No Statement on Stallman's Return to the FSF Board
by Peter Reutemann 19 Apr '21

19 Apr '21

'Debian Project Secretary Kurt Roeckx has announced the results of a closely-watched vote on what statement would be made about Richard Stallman's readmission to the Free Software Foundation's board. Seven options were considered, with the Debian project's 420 voting developers also asked to rank their preferred outcomes: - Option 1: "Call for the FSF board removal, as in rms-open-letter.github.io" - Option 2: "Call for Stallman's resignation from all FSF bodies" - Option 3: "Discourage collaboration with the FSF while Stallman is in a leading position" - Option 4: "Call on the FSF to further its governance processes" - Option 5: "Support Stallman's reinstatement, as in rms-support-letter.github.io" - Option 6: "Denounce the witch-hunt against RMS and the FSF" - Option 7: "Debian will not issue a public statement on this issue" While all seven options achieved a quorum of votes, two failed to achieve a majority — options 5 and 6. ("Support Stallman's reinstatement" and "Denounce the witch-hunt...") The option receiving the most votes was #7 (not issuing a public statement) — but it wasn't that simple. The vote's final outcome was determined by comparing every possible pair of options to determine which option would still be preferred by a majority of voters in each possible comparision. In this case, that winner was still the option which had also received the most votes: Debian will not issue a public statement on this issue. The Debian Project will not issue a public statement on whether Richard Stallman should be removed from leadership positions or not. Any individual (including Debian members) wishing to (co-)sign any of the open letters on this subject is invited to do this in a personal capacity. The results are captured in an elaborate graph. Numbers inside the ovals show the final ratio of yes to no votes (so a number higher than 1.00 indicates a majority, with much higher numbers indicating much larger majorities). Numbers outside the ovals (along the lines) indicate the number of voters who'd preferred the winning choice over the losing choice (toward which the arrow is pointing). The winning option is highlighted in blue.' -- source: https://linux.slashdot.org/story/21/04/18/1727209 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Linus Torvalds Says Rust Closer for Linux Kernel Development, Calls C++ 'A Crap Language'
by Peter Reutemann 18 Apr '21

18 Apr '21

'Google's Android team supports Rust for developing the Android operating system. Now they're also helping evaluate Rust for Linux kernel development. Their hopes, among other things, are that "New code written in Rust has a reduced risk of memory safety bugs, data races and logic bugs overall," that "abstractions that are easier to reason about," and "More people get involved overall in developing the kernel, thanks to the usage of a modern language." Linus Torvalds responded in a new interview with IT Wire (shared by Slashdot reader juul_advocate): The first patches for Rust support in the Linux kernel have been posted and the man behind the kernel says the fact that these are being discussed is much more important than a long post by Google about the language. Linus Torvalds told iTWire in response to queries that Rust support was "not there yet", adding that things were "getting to the point where maybe it might be mergeable for 5.14 or something like that..." Torvalds said that it was still early days for Rust support, "but at least it's in a 'this kind of works, there's an example, we can build on it'." Asked about a suggestion by a commenter on the Linux Weekly News website, who said, during a discussion on the Google post, "The solution here is simple: just use C++ instead of Rust", Torvalds could not restrain himself from chortling. "LOL," was his response. "C++ solves _none_ of the C issues, and only makes things worse. It really is a crap language. "For people who don't like C, go to a language that actually offers you something worthwhile. Like languages with memory safety and [which] can avoid some of the dangers of C, or languages that have internal GC [garbage collection] support and make memory management easier. C++ solves all the wrong problems, and anybody who says 'rewrite the kernel in C++' is too ignorant to even know that." He said that when one spoke of the dangers of C, one was also speaking about part of what made C so powerful, "and allows you to implement all those low-level things efficiently". Torvalds added that, while garbage collection is "a very good thing in most other situations," it's "generally not necessarily something you can do in a low-level system programming."' -- source: https://developers.slashdot.org/story/21/04/17/009241 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Happy 50th Birthday FTP
by Peter Reutemann 18 Apr '21

18 Apr '21

'FTP (file transfer protocol) celebrated its 50th anniversary this week. Long-time Slashdot reader sandbagger shares an article commemorating a half-century of FTP: Over the years, the FTP protocol got refined with 16 different revisions(*1) adding support with TCP/IP, a secure extension also known as FTPS which is leveraging the same tech as HTTPS and more recent addition like IPv6 support. Fifty years after its inception, FTP is still going very strong with millions of FTP server still being exposed on the internet which is fairly amazing considering the bad press it gets... ' -- source: https://tech.slashdot.org/story/21/04/17/2143200 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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