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Security News

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Security
  • Security advisories for Monday
  • Tug of war between SELinux and Chrome Sandbox, who's right?

    Over the years, people have wanted to use SELinux to confine the web browser. The most common vulnerabilty for a desktop user is attacks caused by bugs in the browser. A user goes to a questionable web site, and the web site has code that triggers a bug in the browser that takes over your machine. Even if the browser has no blogs, you have to worry about helper plugins like flash-plugin, having vulnerabilities.

  • Trick or Treat! Google issues warning of critical Windows vulnerability in wild

    Recently, Google’s Threat Analysis Group discovered a set of zero-day vulnerabilities in Adobe Flash and the Microsoft Windows kernel that were already being actively used by malware attacks against the Chrome browser. Google alerted both Adobe and Microsoft of the discovery on October 21, and Adobe issued a critical fix to patch its vulnerability last Friday. But Microsoft has yet to patch a critical bug in the Windows kernel that allows these attacks to work—which prompted Google to publicly announce the vulnerabilities today.

    “After 7 days, per our published policy for actively exploited critical vulnerabilities, we are today disclosing the existence of a remaining critical vulnerability in Windows for which no advisory or fix has yet been released,” wrote Neel Mehta and Billy Leonard of Google’s Threat Analysis Group.”This vulnerability is particularly serious because we know it is being actively exploited.”

    The bug being exploited could allow an attacker to escape from Windows’ security sandbox. The sandbox, which normally allows only user-level applications to execute, lets programs execute without needing administrator access while isolating what it can access on the local system through a set of policies.

    But by using a specific type of call to a legacy support Windows system library generally used for the graphics subsystem—win32k.sys—malicious code can escalate its privileges and execute outside of the sandbox, allowing it to execute code with full access to the Windows environment. Win32k.sys has been a problem before: Microsoft issued a warning back in June about a similar privilege escalation problem that had not yet been exploited, and another arrived in August.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.