#bios

Linux DRM has drm_file_update_pid() call to get_pid() too late, which creates a race condition that can lead to use-after-free issue of a struct pid.

With the advent of Confidential Virtual Machines (CVMs) in RHEL, a new challenge has emerged: Extending the Red Hat UKI (Unified Kernel Image) more safely and without compromising its security footprint. Starting with Red Hat 9.4, the systemd package (252-31 and onwards) supports UKI addons, which aim to solve this issue.In this blog, I explore the addons that enable safer extension of the UKI kernel command line.What is the Unified Kernel Image (UKI)?The linux kernel is the core of any Linux operating system. It's the interface between the hardware and the processes running on it, providing m

Plus: More Pegasus spyware controversy, a major BIOS controversy, and more of the week’s top security news.

Gentoo Linux Security Advisory 202407-26 - A vulnerability has been discovered in Dmidecode, which can lead to privilege escalation. Versions greater than or equal to 3.5 are affected.

Red Hat Security Advisory 2024-4352-03 - An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Issues addressed include double free, memory leak, null pointer, spoofing, and use-after-free vulnerabilities.

308 different models of Sharp Multi-Function Printers (MFP) are vulnerable to 18 different vulnerabilities including remote code execution, local file inclusion, credential disclosure, and more.

Red Hat Security Advisory 2024-4211-03 - An update for kernel is now available for Red Hat Enterprise Linux 8. Issues addressed include double free, memory leak, null pointer, spoofing, and use-after-free vulnerabilities.

The old, but newly disclosed, vulnerability is buried deep inside personal computers, servers, and mobile devices, and their supply chains, making remediation a headache.

Cybersecurity researchers have disclosed details of a now-patched security flaw in Phoenix SecureCore UEFI firmware that affects multiple families of Intel Core desktop and mobile processors. Tracked as CVE-2024-0762 (CVSS score: 7.5), the "UEFIcanhazbufferoverflow" vulnerability has been described as a case of a buffer overflow stemming from the use of an unsafe variable in the Trusted Platform

Testing environmentIn this performance analysis, we investigate various configurations and testing scenarios to showcase IPsec throughput on the latest RHEL 9 platform. Our choice of a modern multicore CPU and the latest stable RHEL aims to represent today's technological capabilities.Hardware configurationDual socket of 28 cores each Intel 4th Generation Xeon Scalable ProcessorHyper-threading enabled (two sockets with 56 logical cores each)Directly connected high-speed 100Gbit Intel E810 network cardsSoftware informationDistribution: RHEL-9.4.0Kernel: 5.14.0-427.13.1.el9_4.x86_64NetworkManage