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Blog posts tagged
"Vulnerabilities"

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. One of the vulnerabilities has been assigned the ID: CVE-2026-43284. The other CVE ID is pending. Both are referred to as “Dirty Frag.” The affected components are Linux kernel modules. The first vulnerability impac ...

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- ...

Matthew de Klerk
10 September 2025

What are dependencies, and how do you secure them?

Security Article

There are thousands of free-to-use, ready-built programs and code repositories that solve  problems you’d otherwise need to spend weeks building the solutions for from scratch. However, like with all software, you still need to ensure that your software supply chain is secure and safe to consume. ...

ebarretto
18 June 2025

Fixes available for local privilege escalation vulnerability in libblockdev using udisks

Ubuntu Article

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 ...

Octavio Galland
30 May 2025

Apport local information disclosure vulnerability fixes available

Ubuntu Article

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 ...

eslerm
14 January 2025

Rsync remote code execution and related vulnerability fixes available

Hardening Article

Canonical’s security team has released updates of the rsync packages for all supported Ubuntu releases. The updates remediate CVE-2024-12084, CVE-2024-12085, CVE-2024-12086, CVE-2024-12087, CVE-2024-12088, and CVE-2024-12747. ...

Matthew de Klerk
12 December 2024

What is vulnerability management?

Security Article

Vulnerability management is the holistic process of identifying and handling security risks in an organization’s networks, systems and devices. Vulnerability management serves an overarching strategy that describes and outlines the many individual efforts and steps taken to reduce cyber incident risk to acceptable levels and improve overa ...

eslerm
19 November 2024

Needrestart local privilege escalation vulnerability fixes available

Ubuntu Article

Qualys discovered vulnerabilities which allow a local attacker to gain root privileges in the needrestart package (CVE-2024-48990, CVE-2024-48991, CVE-2024-48992, and CVE-2024-11003) and a related issue in libmodule-scandeps-perl (CVE-2024-10224). The vulnerabilities affect Debian, Ubuntu and other Linux distributions. Canonical’s securit ...

Luci Stanescu
26 September 2024

CUPS Remote Code Execution Vulnerability Fix Available

Ubuntu Article

Four CVE IDs have been assigned that together form an high-impact exploit chain surrounding CUPS: CVE-2024-47076, CVE-2024-47175, CVE-2024-47176 and CVE-2024-47177. Canonical’s security team has released updates for the cups-browsed, cups-filters, libcupsfilters and libppd packages for all supported Ubuntu LTS releases. The updates remedi ...

Diogo Sousa
21 August 2024

How Ubuntu keeps you secure with KEV prioritisation

Security Article

The Known Exploited Vulnerabilities Catalog (KEV) is a database published by the US Cybersecurity and Infrastructure Security Agency (CISA) that serves as a reference to help organisations better manage vulnerabilities and keep pace with threat activity.By having a commitment to prioritise vulnerabilities contained in the KEV, Ubuntu is p ...

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