Mastodawn

「CISAは「コピー失敗」の脆弱性がLinuxシステムのルート権限取得に悪用されていると発表した。」： #BLEEPINGCOMPUTER

「CISAは、Theoriの研究者らがLinuxのセキュリティ脆弱性「Copy Fail」を公表し、概念実証（PoC）エクスプロイトを公開した翌日、攻撃者がこの脆弱性を悪用し始めたと警告した。

として追跡されている CVE-2026-31431 このセキュリティ上の欠陥は、Linuxカーネルのalgif_aead暗号化アルゴリズムインターフェースで発見されたもので、権限のないローカルユーザーが、パッチが適用されていないLinuxシステム上で、読み取り可能な任意のファイルのページキャッシュに4バイトの制御されたデータを書き込むことで、root権限を取得できてしまう。」

#Ubuntu24.04 では最新updateしていれば、問題のモジュールをロードしない回避策は取られている。（kernelの修正はまだ出ていない）

https://www.bleepingcomputer.com/news/security/cisa-says-copy-fail-flaw-now-exploited-to-root-linux-systems/

#prattohome

CISA says ‘Copy Fail’ flaw now exploited to root Linux systems

CISA has warned that threat actors have started exploiting the "Copy Fail" Linux security vulnerability in the wild, one day after Theori researchers disclosed it and shared a proof-of-concept (PoC) exploit.

BleepingComputer

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seanpm2001 🇺🇦️🇬🇱Mar 9

Update: I tried to copy the themes to the themes folder (I had to run Nautilus as root to gain the permission to do this) the themes are showing up now, but they are on the wrong dropdown list (icons) and not a separate 4th field. I could not find a .themes folder, so I made one at root, but it doesn't do anything. Attempting to load any of these themes causes the system to immediately reach 100% CPU usage across all CPUs, so they aren't installed correctly. What do I have to do to make the custom theme field show up.
For reference, I got my themes from here: https://github.com/B00merang-Project/
#help #ubuntu #ubuntu24 #themes #customization #linux #linuxhelp #gtk #gnome #gnome46 #gtk4

seanpm2001 🇺🇦️🇬🇱Mar 8

I have been following this guide to try and install a theme on my system: https://linux.how2shout.com/installing-gnome-tweaks-in-ubuntu-24-04-linux-to-customize-it/
the guide says it is for Ubuntu 24.04, but GNOME Tweaks looks completely different compared to what is shown in the guide (the light mode screenshot)
Has GNOME really changed this much in less than 2 years? All of the relevant settings cannot be found.
I tried installing `gnome-tweaks` `gnome-shell-extension-manager` and `dconf-editor` I am not finding any such setting in GNOME-Tweaks to enable a custom theme.
What am I doing wrong?
#gnome #themes #linux #help #ubuntu #ubuntu24 #gnometweaks #tweaks

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seanpm2001 🇺🇦️🇬🇱Feb 15

This is the error I got with a larger hard drive (16 terabytes, also Western Digital, and also NTFS) on Ubuntu 22.04 (although the issue was not present on any of my drives with Ubuntu 20.04)

This issue is still unresolved, and I would like to get further help here. I have a temporary workaround using USB sticks, but it isn't going to hold up for long.

I am willing to contribute towards #mutualaid for those who can help.

#help #techsupport #repair #sda1 #linux #ubuntu #westerndigital #bounty #backup #ubuntu22 #ubuntu_22 #ubuntu24 #ubuntu_24

ValLibre Jan 13

Petite note sur la séance de samedi dernier

http://wiki.vallibre.fr/Victus_16_HP_Laptop

#bug #HP #Victus #Ubuntu24 #ValLibre

Victus 16 HP Laptop

Asso Val Libre

fosstopia 🇩🇪Jan 13

Ubuntu 24.04.4 LTS erhält Hardware Enablement Stack https://fosstopia.de/ubuntu-24-04-4-lts/ #Ubuntu #Ubuntu24.04 #Ubuntu24.04LTS #Ubuntu24.04.4 #UbuntuHWE #UbuntuHWEKernel #UbuntuLTS

Reddit Tech VN Bot Nov 19

Cài đặt Mullvad VPN trên máy chủ Ubuntu 24 mà vẫn giữ VPN Wireguard cho mạng nội bộ. Người dùng gặp khó khăn trong việc thiết lập split routing để sử dụng cả hai VPN cùng lúc #MullvadVPN #Wireguard #Ubuntu #SplitRouting #VPN #MạngNộiBộ #Linux #CàiĐặtVPN #ThiếtLậpMạng #Ubuntu24

https://www.reddit.com/r/selfhosted/comments/1p0xiqt/setting_up_mullvad_vpn_while_maintaining/

FediVerseExplorer Oct 22, 2025

#ubuntu24 lädt mit einer Standardinstallation das #kvm #Kernel #Modul. Das kollidiert dann natürlich mit #VirtualBox #VMs.

Wozu wird das Modul geladen, wenn es eigentlich nicht gebraucht wird. Habe jedenfalls bisher noch keine Anwendung gehabt, die es benötigt.

#Linux

FediVerseExplorer Oct 18, 2025

Auch bei #ubuntu24 befindet sich der Anmeldebildschirm nach dem Aufwachen aus dem #Bereitschaftsmodus manchmal in einem Zustand, indem das Eingabefeld für das Passwort nur mit der Maus aktivierbar ist. Jedenfalls ist es nicht via [Tab] zu erreichen. Es ist das einzige Element auf dem Bildschirm, außer dem Ein/Aus in der Taskleiste. Weslhalb hat das keinen automatischen Fokus?

Nichts für #blinde Nutzer!

Das solche Basics oft über Jahre keine Beachtung finden frustriert.

#a11x #Linux

Green Webpage Sep 23, 2025

🚀If you’re running Ubuntu 24.04 LTS and you’d like to have more control over your system’s boot menu, 𝗚𝗿𝘂𝗯 𝗖𝘂𝘀𝘁𝗼𝗺𝗶𝘇𝗲𝗿 is probably one of the best tools to use. It makes it easy to reorder OSes, specify default entries, set a default boot target, customize themes, and modify boot menus and other advanced GRUB settings from a friendly graphical environment.

#GrubCustomizer #BootMenu #Ubuntu24.04 #LinuxAdministration #GreenWebpage

How to Install Grub Customizer on Ubuntu 24.04 - Greenwebpage Community

In this tutorial, we will explain step by step how to install Grub Customizer on Ubuntu 24.04 and how it can be used securely.

Greenwebpage Community