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Blog posts tagged
"Security"

Luci Stanescu
19 May 2026

CVE-2026-46333 (ssh-keysign-pwn) Linux kernel vulnerability mitigations

Ubuntu Article

An information disclosure security vulnerability in the Linux kernel was publicly disclosed on May 15th, 2026. The vulnerability was reported by Qualys and fixed in the mainline Linux kernel tree. A proof-of-concept exploit was published soon after public disclosure. The ID CVE-2026-46333 was assigned, but the vulnerability is also referr ...

Miha Purg
15 May 2026

Finding the blind spot: How Canonical hunts logic flaws with AI

AI Article

AI is accelerating and improving how security engineers find and fix vulnerabilities. A new tool developed and used at Canonical, called Redhound, has already uncovered three critical logic vunerabilites, paving the way for a more secure software landscape. ...

Luci Stanescu
14 May 2026

Fragnesia Linux kernel local privilege escalation vulnerability mitigations

Ubuntu Article

A local privilege escalation (LPE) vulnerability affecting the Linux kernel has been publicly disclosed on May 13, 2026. The vulnerability does not have a CVE ID published, but is referred to as “Fragnesia.”  The vulnerability affects multiple Linux distributions, including all Ubuntu releases. The affected components are the Linux kernel ...

Luci Stanescu
8 May 2026

Dirty Frag Linux kernel local privilege escalation vulnerability mitigations

Ubuntu Article

Two local privilege escalation (LPE) vulnerabilities affecting the Linux kernel have been publicly disclosed on May 7, 2026. The vulnerabilities have been assigned the IDs CVE-2026-43284 and CVE-2026-43500 and are referred to as “Dirty Frag.” The affected components are Linux kernel modules. The first vulnerability impacts the modules tha ...

Luci Stanescu
30 April 2026

Fixes available for CVE-2026-31431 (Copy Fail) Linux Kernel Local Privilege Escalation Vulnerability

Ubuntu Article

A local privilege escalation (LPE) vulnerability affecting the Linux kernel has been publicly disclosed on April 29, 2026. The vulnerability has been assigned CVE ID CVE-2026-31431 and is referred to as Copy Fail. The affected component is a kernel module that provides hardware-accelerated cryptographic functions: algif_aead. The vulnerab ...

Luci Stanescu
12 March 2026

AppArmor vulnerability fixes available

Ubuntu Article

Qualys discovered several vulnerabilities in the AppArmor code of the Linux kernel. These are being referred to as CrackArmor, while CVE IDs are in the process of being assigned by the Linux Kernel CVE Numbering Authority. There are eleven patches for the nine vulnerabilities and each patch is assigned a CVE IDs: CVE-2026-23268, CVE-2026- ...

Ijlal Loutfi
6 March 2026

Sovereign clouds: enhanced data security with confidential computing 

Confidential computing Article

Increasingly, enterprises are interested in improving their level of control over their data, achieving digital sovereignty, and even building their own sovereign cloud. However, this means moving beyond thinking about just where your data is stored to thinking about the entire data lifecycle.  In this blog, we cover the differences betwe ...

Benjamin Ryzman
24 February 2026

Building quantum-safe telecom infrastructure for 5G and beyond

private mobile network Article

coRAN Labs and Canonical at MWC Barcelona 2026 At MWC Barcelona 2026, coRAN Labs and Canonical are presenting a working demonstration of a cloud-native, quantum-safe telecom platform for 5G and beyond 5G networks. This is not a conceptual exercise. It is a full 5G System (5GS) deployment with post-quantum cryptography embedded across the ...

Lidia Luna Puerta
14 January 2026

How to build DORA-ready infrastructure with verifiable provenance and reliable support

Ubuntu Article

DORA requires organizations to know what they run, where it came from, and how it’s maintained. Learn how to build infrastructure with verifiable provenance. ...

Florencia Cabral Berenfus
17 December 2025

Extending ROS Noetic Support with ESM-Enabled Content Snaps

Robotics Article

Canonical has now extended its ESM (Expanded Security Maintenance) for ROS coverage to ROS Noetic content-sharing snaps. With ESM for ROS now available in both deb and snap formats, Ubuntu continues to be the trusted foundation for secure, long-term robotics innovation. ...

Canonical
30 September 2025

Canonical achieves ISO 27001 certification

Canonical announcements Article

The certification demonstrates alignment with cybersecurity standards that will further safeguard open source products and services for use in the most demanding enterprise environments. Canonical is proud to announce it has achieved the ISO/IEC 27001 certification for its Information Security Management System (ISMS), following an extens ...

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