Rohan Timalsina, Author at Security Boulevard

Ubuntu Fixes Several Linux Kernel AWS Vulnerabilities

Rohan Timalsina — Mon, 02 Sep 2024 09:00:05 +0000

Several vulnerabilities in the Linux kernel have been identified, also affecting Amazon Web Services (AWS) systems. Canonical has released important security patches addressing these vulnerabilities. These flaws primarily involve race conditions and memory management errors, which can be exploited to cause system crashes or unauthorized actions. Here’s a detailed look at some of these vulnerabilities […]

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How Server Health Monitoring Supports Proactive Maintenance

Rohan Timalsina — Mon, 02 Sep 2024 08:00:20 +0000

Server health monitoring allows you to identify potential problems before they become critical, preventing costly downtime and data loss. Monitoring resource usage (CPU, memory, disk, network) helps optimize server performance and ensures efficient utilization. Combining monitoring with proactive maintenance strategies like Live Patching ensures maximum uptime and security. The rise of online businesses has […]

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Ubuntu Fixes Multiple BusyBox Vulnerabilities

Rohan Timalsina — Thu, 29 Aug 2024 09:00:31 +0000

BusyBox, often referred to as the “Swiss Army knife of embedded Linux,” is a compact suite of Unix utilities combined into a single executable. It’s widely used in small and embedded systems due to its lightweight nature. However, like any software, it is not immune to vulnerabilities. Recently, Canonical has released security updates to address […]

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Ubuntu Patches Three QEMU Vulnerabilities

Rohan Timalsina — Wed, 28 Aug 2024 09:00:33 +0000

Several security issues were discovered in QEMU, an open-source machine emulator and virtualizer. These issues also affected the Ubuntu 22.04 LTS release. In response, Canonical has released security updates to address QEMU vulnerabilities in Ubuntu 22.04 LTS. These vulnerabilities, if exploited, could allow an attacker to cause a denial of service (DoS) or leak sensitive […]

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What is binary compatibility, and what does it mean for Linux distributions?

Rohan Timalsina — Wed, 28 Aug 2024 08:00:37 +0000

Applications are typically tested and guaranteed to function on specific Linux distributions, but may work on others as well. Kernel versions, libraries, and system calls are key factors affecting binary compatibility between distributions. Differences in the operating system’s ABI (Application Binary Interface) are also a frequent source of compatibility problems. Binary compatibility is an […]

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Critical wpa_supplicant Vulnerability Addressed

Rohan Timalsina — Tue, 27 Aug 2024 09:00:23 +0000

A serious vulnerability has been discovered in the widely used wpa_supplicant package, potentially leaving millions of devices at risk. This flaw, tracked as CVE-2024-5290, poses a significant risk of privilege escalation, potentially allowing attackers to gain unauthorized root access to a system. wpa_supplicant is a critical component in the world of wireless security, providing client […]

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Debian 11 “Bullseye” Enters LTS: What You Need to Know

Rohan Timalsina — Mon, 26 Aug 2024 09:00:25 +0000

Debian 11, code-named “Bullseye”, has entered the Long-Term Support phase after three years of regular support from the Debian Security and Release teams. As of August 15, 2024, Debian 11 will be handled by the Debian LTS team, a separate group of volunteers and companies interested in making it a success. Understanding Debian Release […]

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The Risks of Running an End Of Life OS – And How To Manage It

Rohan Timalsina — Fri, 23 Aug 2024 08:00:51 +0000

EOL operating systems no longer receive critical security updates, leaving them highly vulnerable to evolving cybersecurity threats. End-of-life OSs often struggle to run modern software and hardware, resulting in compatibility issues, reduced performance, and lower productivity. Organizations using EOL systems face increased legal and financial risks due to non-compliance with regulations and the high costs […]

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Critical SLUBStick Exploitation Technique Threatens Linux Security

Rohan Timalsina — Thu, 22 Aug 2024 09:00:44 +0000

A new and highly-effective cross-cache attack named SLUBStick has emerged, targeting the Linux kernel with a remarkable 99% success rate in transforming a limited heap vulnerability into an arbitrary memory read-and-write capability. This allows attackers to elevate privileges or even escape containerized environments, posing significant risks to Linux systems. It works by tricking the kernel […]

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Time to Upgrade: Linux Kernel 6.9 is End of Life

Rohan Timalsina — Wed, 21 Aug 2024 09:00:55 +0000

After nearly three months, Linux kernel 6.9 has officially reached the end of life on August 2nd, 2024. If you are currently running this EOL kernel version, it’s time to consider upgrading to the latest Linux kernel 6.10 or a long-term support (LTS) version to maintain system security and stability. Greg Kroah-Hartman, a renowned Linux […]

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