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Microsoft Visual Studio Code flaw lets extensions steal passwords
by Peter Reutemann 10 Aug '23

10 Aug '23

'Microsoft's Visual Studio Code (VS Code) code editor and development environment contains a flaw that allows malicious extensions to retrieve authentication tokens stored in Windows, Linux, and macOS credential managers. These tokens are used for integrating with various third-party services and APIs, such as Git, GitHub, and other coding platforms, so stealing them could have significant consequences for a compromised organization's data security, potentially leading to unauthorized system access, data breaches, etc. The flaw was discovered by Cycode researchers, who reported it to Microsoft along with a working proof-of-concept (PoC) they developed. Yet, the tech giant decided against fixing the issue, as extensions are not expected to be sandboxed from the rest of the environment.' -- source: https://www.bleepingcomputer.com/news/security/microsoft-visual-studio-code… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, Hamilton, NZ Mobile +64 22 190 2375 https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Bram Moolenaar, Author of the Open Source Vim Code Editor, Has Died
by Peter Reutemann 08 Aug '23

08 Aug '23

'The creator of one of the most popular programming editors of all time, Vim, has died after a brief illness. :wq. You may not have known Bram Moolenaar’s name, but all developers know his open source programming editor, Vim. His family has reported to the Vim announcement list that Moolenaar has died. According to the note, “Bram Moolenaar passed away on 3 August 2023.” Bram suffered from a medical condition that progressed quickly over the last few weeks.” No further details are available at this time. They added Bram had “dedicated a large part of his life to VIM, and he was very proud of the VIM community that you are all part of.” This is true. Under his guidance, Vim became one of the most popular code editors in the world. Vim was based on Unix’s Vi, a screen-oriented text editor created by Bill Joy that proved to be immensely popular. Indeed, it was my first editor. Its command set, while often used in jokes, is powerful. It’s still embedded in my fingers today. I’m far from the only programmer who can say that.' -- source: https://thenewstack.io/bram-moolenaar-author-of-the-open-source-vim-code-ed… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, Hamilton, NZ Mobile +64 22 190 2375 https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Qualcomm—one of Arm’s biggest customers—starts a RISC-V joint venture
by Peter Reutemann 07 Aug '23

07 Aug '23

'Arm is facing down its biggest competition ever, with the up-and-coming RISC-V architecture threatening to unseat it as the CPU at the center of almost every portable device. Now, one of Arm's biggest customers is trying out RISC-V, as Qualcomm is getting involved in a joint venture dedicated to the architecture. The joint venture doesn't have a name yet, but Qualcomm, NXP, Nordic Semiconductor, Bosch, and memory giant Infineon are all teaming up to form a new company that Qualcomm's press release says is "aimed at advancing the adoption of RISC-V globally by enabling next-generation hardware development." At first, the group will be focused on automotive uses, with an "eventual expansion" to IoT and mobile, Qualcomm's biggest market. Arm doesn't manufacture any chips itself and instead exists as a design and licensing operation. It licenses both the Arm architecture, allowing companies to design an Arm-compatible chip themselves (this is what Apple does), and it also licenses completed CPU designs, allowing partners like Qualcomm, Samsung, and MediaTek to produce new SoCs year after year. Previously, we would have said Qualcomm's "next-generation hardware" project revolves around its acquisition of Nuvia, a chip design house that was founded by ex-SoC engineers from Apple, which currently makes the fastest mobile ARM chips available. Qualcomm's CPUs all use Arm's designs, and they are regularly a generation or two behind what Apple can do. If Nuvia lives up to its potential, Qualcomm's Arm chips would finally be competitive. The company says chips from Nuvia are expected to hit the market in 2024 for PCs, so Qualcomm will be sticking with Arm for a while longer. Qualcomm's "Snapdragon Automotive" products are usually based on 5-year-old phone designs, but it sounds like that's changing. A RISC-V transition, if one ever comes, is a few years down the line. RISC-V is threatening Arm for a few reasons. First is its open source licensing, which potentially lets companies avoid the fees Arm charges to make any chip compatible with its instruction set. Second is that RISC-V is also a way for companies to insulate themselves from Arm, which has become an increasingly unstable hardware partner. Arm is at the center of most mobile devices, but it doesn't make a ton of money off of this licensing business. ' -- source: https://arstechnica.com/gadgets/2023/08/qualcomm-one-of-arms-biggest-custom… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, Hamilton, NZ Mobile +64 22 190 2375 https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Asahi Linux’s new “flagship” distro for M-series Macs is a Fedora Remix
by Peter Reutemann 07 Aug '23

07 Aug '23

'Asahi Linux, the project aiming to bring a fully functional Linux system to Apple computers running on that company's own M-series chips, has announced that its new "flagship distro" is Fedora Asahi Remix. As announced at Fedora's Flock conference this week in Cork, Ireland, (and on Asahi Linux's blog), the Fedora Asahi Remix should be officially released by the end of August 2023. You can try it out now, but you should "expect rough spots (or even complete breakage)." The new distro will be "upstream-first," sending as many of its bespoke M-series tools back to Fedora's mainline offerings as possible. Hector Martin, writing on Asahi Linux's blog, notes that the existing project based on Arch Linux was "fully downstream." Asahi added its own package repository with scripts, forked kernel and Mesa packages, bootloader parts, and userspace support, but with "no significant involvement with upstream Arch Linux ARM or Arch Linux." Neal Gompa from Fedora reached out to talk about integrating Asahi with Fedora after the project's debut, and work began in late 2021. Now it's ready to spread a bit further. "Collaborating with distro integration experts and using distro infra(structure) like this frees us up to continue focusing on what we do best: reverse engineer hardware and develop bespoke drivers and software," Martin writes. Integration with a well-established distribution also means that bugs in desktop ARM64 Linux, "a niche platform (until now!)," Martin writes, can be addressed more quickly.' -- source: https://arstechnica.com/gadgets/2023/08/asahi-linux-will-offer-a-flagship-f… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, Hamilton, NZ Mobile +64 22 190 2375 https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The State Of ARM
by Lawrence D'Oliveiro 06 Aug '23

06 Aug '23

Everybody knows that ARM dominates the embedded market, where it ships more units per year than the entire population of the Earth. But it is making inroads in, shall we say, more “niche” markets, too, like PCs and servers. According to this <https://www.theregister.com/2023/08/02/arm_server_china/>, Canalys boss Steve Brazier says ARM already makes up 16% of the public cloud (and an even higher proportion of servers in China). But another interesting figure he mentions is “nine percent of PCs”. Now, we know that Windows-on-ARM is not that popular. Therefore, that 9% must be almost entirely running Linux-based OSes, including ChromeOS.

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Linux Surpasses Mac Among Steam Gamers
by Lawrence D'Oliveiro 06 Aug '23

06 Aug '23

Windows dominates non-console gaming, of course. But according to this report <https://arstechnica.com/gadgets/2023/08/linux-surpasses-the-mac-among-steam…>, the number 2 platform (or platform family) is Linux, admittedly quite a way behind at 1.96%, ahead of the Apple Mac at 1.84%. Of the Linux share, 42% is made up of users of the Steam Deck, which is a handheld device (presumably the rest come from the various more conventional desktop distros). Microsoft has taken note of this, and is reportedly working on a “Handheld Mode” for Windows, which so far is still vapourware. Apple is also trying to do its own porting kit for Windows games to run better on Mac, analogous to WINE/Proton for Linux.

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Canon Warns Printer Users To Manually Wipe Wi-Fi Settings Before Discarding
by Peter Reutemann 03 Aug '23

03 Aug '23

'Printer manufacturer Canon is warning that sensitive Wi-Fi settings don't automatically get wiped during resets, so customers should manually delete them before selling, discarding, or getting them repaired to prevent the settings from falling into the wrong hands. >From a report: "Sensitive information on the Wi-Fi connection settings stored in the memories of inkjet printers (home and office/large format) may not be deleted by the usual initialization process," company officials wrote in an advisory on Monday. They went on to say that manual wiping should occur "when your printer may be in the hand of any third party, such as when repairing, lending or disposing the printer." Like many printers these days, those from Canon connect to networks over Wi-Fi. To do this, users must provide the SSID name, the password preventing unauthorized access to the network, and in some cases, additional information such as Wi-Fi network type, the local network IP address, the MAC address, and network profile. It would be reasonable to assume that performing a simple factory reset that returns all settings to their defaults would be enough to remove these settings, but Monday's advisory indicated that isn't necessarily the case. In the event this information is exposed, malicious actors could use them to gain unauthorized access to a network hosting a Canon printer.' -- source: https://hardware.slashdot.org/story/23/08/02/116218 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, Hamilton, NZ Mobile +64 22 190 2375 https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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AWS To Start Charging For Public IPv4 Addresses
by Peter Reutemann 01 Aug '23

01 Aug '23

'The Register: Cloud giant AWS will start charging customers for public IPv4 addresses from next year, claiming it is forced to do this because of the increasing scarcity of these and to encourage the use of IPv6 instead. It is now four years since we officially ran out of IPv4 ranges to allocate, and since then, those wanting a new public IPv4 address have had to rely on address ranges being recovered, either from from organizations that close down or those that return addresses they no longer require as they migrate to IPv6. If Amazon's cloud division is to be believed, the difficulty in obtaining public IPv4 addresses has seen the cost of acquiring a single address rise by more than 300 percent over the past five years, and as we all know, the business is a little short of cash at the moment, so is having to pass these costs on to users. "This change reflects our own costs and is also intended to encourage you to be a bit more frugal with your use of public IPv4 addresses and to think about accelerating your adoption of IPv6 as a modernization and conservation measure,' writes AWS Chief Evangelist Jeff Barr, on the company news blog. The update will come into effect on February 1, 2024, when AWS customers will see a charge of $0.005 (half a cent) per IP address per hour for all public IPv4 addresses. These charges will apparently apply whether the address is attached to a service or not, and like many AWS charges, appear inconsequential at first glance but can mount up over time if a customer is using many of them. These charges will apply to all AWS services including EC2, Relational Database Service (RDS) database instances, Elastic Kubernetes Service (EKS) nodes, and will apply across all AWS regions, the company said. However, customers will not be charged for IP addresses that they own and bring to AWS using Amazon's BYOIP feature. AWS offers a free tier for EC2, and this will include 750 hours of public IPv4 address usage per month for the first 12 months, starting from the same date the charges do.' -- source: https://tech.slashdot.org/story/23/08/01/0013249 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, Hamilton, NZ Mobile +64 22 190 2375 https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Python’s GIL, a “major obstacle to concurrency”, will likely be removed – but slowly
by Lawrence D'Oliveiro 01 Aug '23

01 Aug '23

The Python Steering Council has officially decided on a roadmap for removing a major bottleneck to multithreading performance in Python <https://devclass.com/2023/07/31/pythons-gil-a-major-obstacle-to-concurrency…>. Currently Python uses a combination of reference-counting and garbage collection in order to avoid the need for programmers to have to keep track of allocated objects and remembering when to dispose of them. A pure garbage collection scheme, like in Java or LISP, makes it easier to support multithreading, but at the cost of memory usage that can easily get out of hand. Reference counting helps to ensure that objects disappear as soon as the program forgets its last reference to them, and this works well for most objects in a typical program, with garbage collection as a fallback for cleaning up the rest. But Python’s present scheme for maintaining reference counts (the “Global Interpeter Lock” or “GIL”) prevents Python code for taking full advantage of multiple threads. Some are advocating switching to the pure garbage-collection approach, but fortunately (I think) this is not the plan that has been adopted by the Council. Instead, they are going to use a technique known as “Biased Reference Counting”. This splits the reference count into two components, one managed by a thread which is considered to “own” the object (and is presumably responsible for most accesses to the object), while the other is managed on a shared basis by other threads accessing the object (and making fewer accesses to it). This seems to offer the best performance in tests so far. The switchover is a complicated procedure, which is certain to have implications for some existing Python code that never had to worry about thread safety before, as well as far-reaching implications for the design of the CPython implementation itself. So it will take place in multiple stages over some years, and if worst comes to worst, the changes can always be rolled back. (Or a different strategy chosen.) Seems some people are still smarting over the flak they got from the Python 2 → 3 transition. “This is not Python 4,” they are saying. But why not call it “Python 4”, as a warning over the likely compatibility issues? Even if it probably won’t be quite as painful ...

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Android malware steals user credentials using optical character recognition
by Peter Reutemann 31 Jul '23

31 Jul '23

'Security researchers have unearthed a rare malware find: malicious Android apps that use optical character recognition to steal credentials displayed on phone screens. The malware, dubbed CherryBlos by researchers from security firm Trend Micro, has been embedded into at least four Android apps available outside of Google Play, specifically on sites promoting money-making scams. One of the apps was available for close to a month on Google Play but didn’t contain the malicious CherryBlos payload. The researchers also discovered suspicious apps on Google Play that were created by the same developers, but they also didn’t contain the payload. The apps took great care to conceal their malicious functionality. They used a paid version of commercial software known as Jiagubao to encrypt code and code strings to prevent analysis that can detect such functionality. They also featured techniques to ensure the app remained active on phones that had installed it. When users opened legitimate apps for Binance and other cryptocurrency services, CherryBlos overlaid windows that mimicked those of the legitimate apps. During withdrawals, CherryBlos replaced the wallet address the victim selected to receive the funds with an address controlled by the attacker. The most interesting aspect of the malware is its rare, if not novel, feature that allows it to capture mnemonic passphrases used to gain access to an account. When the legitimate apps display passphrases on phone screens, the malware first takes an image of the screen and then uses OCR to translate the image into a text format that can be used to raid the account. “Once granted, CherryBlos will perform the following two tasks: 1. Read pictures from the external storage and use OCR to extract text from these pictures [and] 2. Upload the OCR results to the C&C server at regular intervals,” the researchers wrote. Most apps related to banking and finance use a setting that prevents the taking of screenshots during sensitive transactions. CherryBlos appears to bypass such restrictions by obtaining accessibility permissions used by people with vision impairments or other types of disabilities.' -- source: https://arstechnica.com/security/2023/07/android-malware-uses-ocr-to-captur… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, Hamilton, NZ Mobile +64 22 190 2375 https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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