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.

Mayhem — an attack that corrupts bits in memory to bypass authentication in sudo and OpenSSH

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Researchers from Worcester Polytechnic Institute (USA) have introduced a new type of Mayhem attack that utilizes a bit-flipping technique in dynamic RAM, known as Rowhammer, to alter the values of variables in the stack, which serve as flags for determining the success of authentication and passing security checks. Practical examples of this attack's application have been demonstrated to bypass authentication in SUDO, OpenSSH, and MySQL, […]

The release of the Tails 5.21 distribution and Tor Browser 13.0.8

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A release of the specialized distribution Tails 5.21 (The Amnesic Incognito Live System) has been formed, based on the Debian package base and designed for anonymous internet access. Tails ensures anonymous access through the Tor network. All connections, except for traffic routed through Tor, are by default blocked by a packet filter. User data storage in persistent mode across sessions is protected by encryption. […]

Mayo 0.8

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The Mayo release has occurred, a program for viewing and converting 3D files. It supports a variety of formats, including STEP, IGES, and STL. The program is written in C++, utilizes Qt and OpenCascade, and runs on Linux, Windows, and macOS. License – 2-clause BSD. An AppImage built on Ubuntu 20.04 is available for download. Source: linux.org.ru

SMTP Smuggling — a new email spoofing technique

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Researchers from SEC Consult have published a new spoofing technique caused by discrepancies in adherence to specifications across various implementations of the SMTP protocol. The proposed attack technique allows a single message to be split into several different messages when transmitted from one SMTP server to another, interpreting the sequence for dividing messages sent through a single connection differently. This method can be used to send fake […]

The release of Zorin OS 17, a distribution for users accustomed to Windows or macOS.

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The release of the Linux distribution Zorin OS 17 has been announced, based on the Ubuntu 22.04 package base. The target audience of the distribution is novice users accustomed to working in Windows. To manage the appearance, the distribution offers a special configurator that allows the desktop to resemble various versions of Windows and macOS, and it includes a selection of applications similar to those familiar to Windows users. Size […]

QEMU 8.2

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A new version of the open-source cross-platform emulator for various processor architectures, QEMU, has been released. The most interesting changes include: added the virtio-sound device, allowing audio capture and playback on a properly configured host backend. The virtio-gpu rutabaga device has been added, enabling various GPU abstractions and screen virtualization. It is now possible to migrate VMs with virtio-gpu blob=true, and the new parameter 'avail-switchover-bandwidth' will assist users who […]

Release of the GNU GRUB 2.12 Boot Manager

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After two and a half years of development, the stable release of the modular, cross-platform boot manager GNU GRUB 2.12 (GRand Unified Bootloader) has been presented. GRUB supports a wide range of platforms, including standard PCs with BIOS, IEEE-1275 platforms (PowerPC/Sparc64-based hardware), EFI systems, systems with RISC-V, Loongson, Itanium, ARM, ARM64, LoongArch, and ARCS (SGI) processors, as well as devices utilizing the free CoreBoot package. Key innovations include: […]

Launch of the continuously updated Rhino Linux 2023.4 distribution

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The release of the Rhino Linux 2023.4 distribution has been announced, implementing a variant of Ubuntu with a continuous delivery update model that provides access to the latest versions of software. New versions are primarily drawn from the devel branches of the Ubuntu repositories, where packages are built with new versions of applications synchronized with Debian Sid and Unstable. Desktop components, the Linux kernel, boot splash screens, themes, […]

Release of the home library catalog MyLibrary 2.3

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The release of the home library cataloging software MyLibrary 2.3 has been announced. The program's code is written in C++ and is available (GitHub, GitFlic) under the GPLv3 license. The user interface is implemented using the GTK4 library. The program is adapted for operation on Linux and Windows operating systems. A ready-made package is available in AUR for Arch Linux users. An experimental installer is available for Windows users. […]

Release of QEMU 8.2 Emulator

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The QEMU 8.2 project release has been announced. As an emulator, QEMU allows you to run programs built for one hardware platform on a system with an entirely different architecture; for instance, to execute an application for ARM on an x86-compatible PC. In virtualization mode, code execution performance in an isolated environment is close to that of a physical system due to direct instruction execution on the CPU and the involvement of […]

Microsoft has fixed the issue causing Wi-Fi to break in Windows 11

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Microsoft took little time to address the Wi-Fi disruption issue that arose on some computers following the installation of the December update for Windows 11 22H2 and Windows 11 23H2. Just over a day has passed since the software giant confirmed the problem, and users now have access to a patch that resolves the error, which could disrupt functionality […]

Debian 12 Bookworm may be the last release in history with support for 32-bit x86.

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At a developer meeting in Cambridge, the issue of phasing out support for 32-bit architecture was discussed. In the interim, the preservation of the 32-bit repository is planned, with its eventual discontinuation coming later. If the plan is approved, the changes can already be seen in the release of Debian 13. Developers plan to gradually stop building 32-bit kernels and installation programs. Support for i386 […]

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