Debian GNU/Linux has released important security updates for two software packages: Xmedcon for Debian 11 and Thunderbird for Debian 12.

Red Hat Enterprise Linux (RHEL) has recently released multiple important security updates for the Xorg-X11-Server. These updates address vulnerabilities that could pose a security risk to systems running various versions of RHEL.

Fedora Linux has announced security updates for two key applications: Darktable and Sudo.

The Liquorix Linux Kernel 6.15-5 has been officially released by Steven Barrett. This latest version is based on the Linux kernel version 6.15.5 and is designed for enthusiasts who require an optimized kernel for low-latency tasks, particularly in audiovisual production, gaming, and interactive applications. The Liquorix kernel is compatible with popular distributions such as Debian, Ubuntu, and Arch Linux.

The Linux kernel version 6.15.5 has been officially released, providing users with the latest updates and improvements. Users can access the full source of the kernel at the provided link, as well as a patch for updates and a PGP signature for verification.

The Linux kernel version 6.12.36 has officially been released, providing users with the latest updates and improvements to the operating system.

Linux Kernel version 6.6.96 has been officially released. Users can download the full source code, patches, and PGP signatures from the provided links. The full source can be found at [this link](https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.6.96.tar.xz), while the patch is available [here](https://cdn.kernel.org/pub/linux/kernel/v6.x/patch-6.6.96.xz), and the PGP signature can be accessed [at this link](https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.6.96.tar.sign).

The Linux kernel version 6.1.143 has been officially released, bringing various updates and improvements to the system. Users can download the full source code, patches, and PGP signature from the provided links.

KDE neon 20250706 has officially been released, showcasing the latest developments from the KDE community. This Linux distribution is built on the Ubuntu platform and offers users the newest version of the KDE Plasma desktop environment.

SUSE Linux recently rolled out a series of security updates aimed at enhancing the security of its systems, particularly for openSUSE Tumbleweed. The updates address multiple vulnerabilities across a wide range of packages, ensuring users can maintain a secure environment.

An update for the mbedtls library has been released for Fedora Linux version 42, specifically version 3.6.4-1.fc42. This update is part of the security updates issued by Fedora and was announced on July 6, 2025. Mbed TLS is a lightweight open-source library that provides cryptographic and SSL/TLS functionalities, making it easier for developers to integrate these capabilities into their applications, particularly in embedded systems.

Summary of Linux Kernel Updates for Ubuntu Ubuntu has recently released multiple updates for the Linux Kernel addressing various vulnerabilities across its distributions. The updates, dated July 4, 2025, include critical security fixes for several kernel versions related to OEM, Intel IoT, IBM, and low-latency systems. Each update targets specific vulnerabilities that could potentially allow attackers unauthorized access or compromise system integrity.

A security update for the JPEG-XL image coding library has been issued for Debian GNU/Linux 12 (Bookworm). The update, identified as Debian Security Advisory DSA-5958-1, addresses multiple vulnerabilities that could lead to serious issues, including out-of-bounds read/write operations and stack-based buffer overflows. These vulnerabilities pose risks of excessive memory usage and potential denial of service attacks. The specific issues are associated with several CVE IDs: CVE-2023-0645, CVE-2023-35790, CVE-2024-11403, and CVE-2024-11498.

SUSE Linux has released several important security updates for its packages, specifically targeting libgepub, libssh, Vim, and xorg-x11-server. Each update aims to address vulnerabilities that could potentially compromise system security.

AlmaLinux has recently rolled out a series of important security updates to enhance the overall security and functionality of its platform. The updates include a range of software packages, each addressing specific vulnerabilities that could potentially affect users and their systems. Here’s a summary of the key updates:

Fedora 41 has released an update for yarnpkg, specifically version 1.22.22-9.fc41, aimed at enhancing security and reliability in dependency management. This update was announced in a Fedora Update Notification, indicating the importance of addressing vulnerabilities associated with the bundled pbkdf2 library.

Ondřej Surý has announced the release of several PHP packages for Debian versions 11 (Bullseye), 12 (Bookworm), and 13 (Trixie). The versions include PHP 8.4.10, 8.3.23, 8.2.29, and 8.3.33, along with older versions such as PHP 8.0.30-15, 7.4.33-21, and 5.6.40-82, all of which come with important security fixes.

Remi Collet has announced the release of PHP 8.5 Alpha 1 packages as a Software Collection (SCL) for Fedora 41 and later, as well as for Enterprise Linux versions 8 and above, including RHEL, CentOS, Alma, and Rocky. These packages are available in the Remi repository and can be installed alongside the existing system version without altering it, thanks to the independent nature of the SCL. PHP 8.5 is currently in its alpha stage, with expectations for beta and release candidate versions to follow in the coming weeks. The installation of PHP 8.5, found in the remi-safe repository, will place the files in the /opt/remi/php85 directory and configuration settings in /etc/opt/remi/php85.

Fedora Linux has recently introduced a series of updates that enhance security and functionality across several packages, including guacamole-server, mingw-gdk-pixbuf, darktable, and yarnpkg. These updates are primarily focused on addressing security vulnerabilities and improving user experience.

A security update for Cryostat has been released for Red Hat Enterprise Linux 9, identified as RHSA-2025:10323. This update is categorized as having an "Important" security impact by Red Hat Product Security. It specifically addresses vulnerabilities found in the Red Hat build of Cryostat version 4.