Blog posts tagged "Security"

Designing a new, robust, sustainable, and truly holistic approach to cybersecurity Talk to any cybersecurity expert or IT security manager, and they’ll tell you they’re sick of alerts and issues. For a while now, the industry has slowly been realizing that there’s a better way to improve cybersecurity and resolve security issues in IT wit

August 28, 2025 – We are excited to announce the general availability of Ubuntu Pro Minimal 22.04 LTS with CIS hardening, a new variant of Ubuntu designed for organizations that require tight security controls, minimal attack surface, and out-of-the-box compliance. This new offering combines the efficiency of Minimal Ubuntu with the enter

Allow-listing web traffic – blocking all web traffic that has not been pre-approved – is a common practice in highly sensitive environments. It is also a challenge for developers and system administrators working in those environments. In this blog, we’ll cover an easy way to mitigate this challenge by using LXD to generate allow-lists. 

Azure’s Update Manager now provides a complete security view for all Ubuntu LTS VMs—18.04, 20.04, 22.04, and 24.04—by showing available updates from Ubuntu Pro’s Expanded Security Maintenance (ESM). This helps identify instances that would benefit from security patching for the Universe repository and continued updates for older LTS relea

Effective AppSec is not a one-time fix but a continuous journey across every facet of your application’s lifecycle. By embracing a Secure Software Development Lifecycle (SSDLC) from the outset, diligently uncovering potential risks, and mastering your cybersecurity fundamentals, you lay a robust foundation for resilient applications.

As of May 2025, the Robot Operating System (ROS) Noetic Ninjemys officially reached its end of life (EOL). First released in 2020 as the final ROS (1) distribution, ROS Noetic has been the default choice for thousands of developers building on Ubuntu 20.04 LTS. For developers and businesses running mission-critical systems on ROS Noetic,

The kernel engineering team at Canonical has generated a new module signing certificate on May 16, 2025, and it is embedded in all Ubuntu kernels published after that date. Livepatch Client version 10.11.2 published on June 13, 2025 includes this new certificate. Livepatch Client 10.11.2 or greater is required to successfully Livepatch al

What safeguards the Livepatch security patching solution against bad actors and malicious code masquerading as an update? Learn about Secure Boot and module signing.

Qualys discovered two vulnerabilities in various Linux distributions which allow local attackers to escalate privileges. The first vulnerability (CVE-2025-6018) was found in the PAM configuration. This CVE does not impact default Ubuntu installations because of how the pam_systemd.so and pam_env.so modules are invoked. The second vulnerab

Everyone agrees security matters – yet when it comes to big data analytics with Apache Spark, it’s not just another checkbox. Spark’s open source Java architecture introduces special security concerns that, if neglected, can quietly reveal sensitive information and interrupt vital functions. Unlike standard software, Spark design permits

Software supply chain security has become a top concern for developers, DevOps engineers, and IT leaders. High-profile breaches and dependency compromises have shown that open source components can introduce risk if not properly vetted and maintained. Although containerization has become commonplace in contemporary development and deploym

Qualys discovered two vulnerabilities in various Linux distributions which allow a local attacker with permission to create user namespaces to leak core dumps for processes of suid executables. These affect both apport, the Ubuntu default core dump handler (CVE-2025-5054), and systemd-coredump, the default core dump handler in Red Hat Ent

Software for Open Networking in the Cloud (SONiC) is an open-source network operating system that has revolutionized data center networking. Originating as a Microsoft-led initiative in the Open Compute Project (OCP) in 2016, SONiC has rapidly gained traction among hyperscalers and switch hardware vendors, including Broadcom, Cisco, and N

Application security (or AppSec, for short) is a broad term that refers to all of the tools, actions, and processes that an organization uses to protect its applications against vulnerabilities across the entirety of its life cycle. Application security has one objective: to find weaknesses in your applications and systems that could be a

Hardening a system aims to decrease its exposure to make it difficult to hack, and to lessen the potential collateral damage in the event of a compromise.

The realm of information security is fraught with jargon, as anyone who has come across vulnerability-related terms can tell you. To complicate matters further, some of these terms are used interchangeably or in contexts outside of computing. This can muddy the waters for people looking to learn about vulnerability assessments – so in thi