ProHoster > Articles on: Yuri Gagarin

Author: Yuri Gagarin

A technical specialist at ProHoster with over six years of experience in server administration, VPN solutions, and network security. I manage infrastructure setup and support, monitor service stability, and implement solutions to protect client data. I also contribute to performance optimization and compliance with modern security and privacy requirements.

Vulnerability in the Linux Kernel Allowing Privilege Escalation via VSOCK

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The possibility of creating a working exploit for the vulnerability CVE-2025-21756 has been demonstrated, caused by an error in the Linux kernel leading to use-after-free memory access. The issue affects the implementation of AF_VSOCK addressed sockets intended for network interaction between guest systems and hosts. The published exploit allows code execution with root privileges on systems running Linux kernel 6.6.75 (other versions require […]

Using a Zip Bomb to Combat Malicious Web Bots

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Recently, there has been a significant increase in web bot activity indexing traffic. In addition to functioning bots, there has been a rise of 'feral' bots that ignore the robots.txt indexing rules, coming from tens of thousands of different IP addresses, masquerading as legitimate users, and not adhering to a reasonable request rate policy. Such bots create a massive parasitic load on servers, disrupt normal system operations, and consume administrators' time. Activity from such […]

The Genode project has released the general-purpose OS Sculpt 25.04.

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The release of the Sculpt project 25.04 has been announced, developing an operating system based on the Genode OS Framework technologies, which can be used by regular users for everyday tasks. The project's source code is distributed under the AGPLv3 license. A system image of 32 MB is available for download, which can be used on PCs, PinePhone smartphones, and MNT Reform laptops. Operation on systems with […]

Release of Firefox 138

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The release of the Firefox 138 web browser has taken place, along with updates to past long-term support branches — 115.23.0 and 128.10.0. The Firefox 139 branch has entered beta testing, with its release scheduled for May 27. Key innovations in Firefox 138: A new profile management system has been proposed. In the profile form, users can create completely independent browsing sessions, each with its own […]

Release of 4MLinux 48.0

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The release of 4MLinux 48.0 is now available, a minimalist user distribution that is not a derivative of other projects and uses a graphical environment based on the JWM window manager. 4MLinux can be used both as a Live environment for playing multimedia files and solving user tasks, as well as a system for recovery after failures and a platform for running mini-servers. Live images are prepared for download […]

Release of Wayland-Protocols 1.44 and the composite server Weston 14.0.2

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The release of the wayland-protocols package 1.44 has been published, containing a set of protocols and extensions that complement the base Wayland protocol and provide the necessary capabilities for building composite servers and user environments. In Wayland-Protocols 1.44, a new protocol, color-representation-v1, has been introduced to define the color representation of a Wayland surface. Using the new protocol, clients can transmit metadata required to determine transparency, color model, sub-sampling, and quantization range, […]

Release of OpenBSD 7.7

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The release of the free UNIX-like operating system OpenBSD 7.7 has been presented. The OpenBSD project was founded by Theo de Raadt in 1995 after a conflict with the NetBSD developers, which resulted in Theo being denied access to the NetBSD CVS repository. After that, Theo de Raadt and a group of like-minded individuals created a new open-source project based on the source tree of NetBSD […]

Open Humanoid Robot Berkeley Humanoid Lite

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The University of California, Berkeley has published the Berkeley Humanoid Lite project, which is a culmination of research and experiments in creating easy-to-manufacture humanoid robots. The robot is built using open-source software and evolves in accordance with the Open Hardware concept. Its hardware is composed of standard components available for sale and parts made using a 3D printer. Models of the machine have been released […]

Seventh alpha release of the COSMIC desktop environment

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System76, the developer of the Pop!_OS Linux distribution, has released the seventh alpha version of the COSMIC desktop environment, written in Rust (not to be confused with the old COSMIC, which was based on GNOME Shell). ISO images with the latest version of COSMIC have been provided for testing, built on top of the alpha builds for the upcoming release of Pop!_OS 24.04 for systems with NVIDIA (3.3 GB) and Intel/AMD (2.9 GB) GPUs. Also […]

MinC — a Cygwin-like environment for Windows featuring utilities from OpenBSD

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The MinC project (MinC Is Not Cygwin) is developing a minimalist core (which occupies 285Kb) and a toolset based on MinGW, allowing the rebuild and execution of standard OpenBSD utilities in Windows, similar to how the Cygwin package allows the use of GNU utilities in Windows. The project's code is written in C and is distributed under the BSD license. It supports operation in versions of Windows starting […]

Release of GCC 15 compiler suite

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After a year of development, the release of the free GCC 15.1 compiler suite has been published, the first significant release in the new GCC 15.x branch. According to the version numbering scheme, version 15.0 was used during development, and shortly before the release of GCC 15.1, the GCC 16.0 branch was already forked, which will form the basis for the next significant release, GCC 16.1. Key changes: When compiling […]

The Microsoft C/C++ Extension now includes a block for operation in forks of VS Code

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Microsoft has made a change in the binary builds of the Microsoft C/C++ Extension (ms-vscode.cpptools) that blocks operation in forks of the open-source code editor VS Code (Visual Studio Code). The extension is proprietary and is used to add C/C++ language support to VS Code. After updating to version 1.24.5, users of the VS Codium and Cursor editors, based on VS Code, encountered […]

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