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Blog posts tagged
"Security"

seth-arnold
11 July 2026

Januscape vulnerability CVE-2026-53359 mitigations available

Ubuntu Article

Introduction A local privilege escalation (LPE) vulnerability affecting the Linux kernel was publicly disclosed on July 6, 2026. The vulnerability was assigned CVE ID CVE-2026-53359 and is referred to as Januscape. This vulnerability affects all Ubuntu releases. Neither NVD nor Kernel.org have published their own CVSS scores for this issu ...

Luci Stanescu
1 July 2026

DirtyClone Linux kernel local privilege escalation vulnerability fixes available

Ubuntu Ubuntu tech blog

On June 25, 2026, JFrog published their research into CVE-2026-43503, referring to the vulnerability as DirtyClone. The vulnerability had previously been responsibly disclosed to the Linux kernel maintainers and the CVE record published on May 23, 2026. The vulnerability affects multiple Linux distributions, including all Ubuntu releases. ...

Luci Stanescu
1 July 2026

pedit COW kernel local privilege escalation vulnerability mitigations

Ubuntu Ubuntu tech blog

Mitigations are available for the Linux vulnerability with CVE ID CVE-2026-46331. The CVE ID was assigned on June 16 2026 and highlighted as a local privilege escalation (LPE) vulnerability on June 26, 2026. Known as “pedit COW”, this vulnerability affects multiple Linux distributions, including all Ubuntu releases starting with Bionic Be ...

seth-arnold
21 May 2026

PinTheft Linux kernel vulnerability mitigation

Ubuntu Ubuntu tech blog

A local privilege escalation (LPE) security vulnerability in the Linux kernel, codename “PinTheft,” was publicly disclosed on May 19, 2026. The vulnerability was fixed in the mainline Linux kernel tree. A proof-of-concept exploit was published along with public disclosure. This has been assigned the CVE ID CVE-2026-43494; other discoverin ...

Luci Stanescu
19 May 2026

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

Ubuntu Ubuntu tech blog

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 Ubuntu tech blog

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 Ubuntu tech blog

A local privilege escalation (LPE) vulnerability affecting the Linux kernel has been publicly disclosed on May 13, 2026. The vulnerability has been assigned the CVE ID CVE-2026-46300 and is referred to as “Fragnesia.”  The vulnerability affects multiple Linux distributions, including all Ubuntu releases. The affected components are the Li ...

Luci Stanescu
8 May 2026

Dirty Frag Linux kernel local privilege escalation vulnerability mitigations

Ubuntu Ubuntu tech blog

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 Ubuntu tech blog

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 Ubuntu tech blog

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 Ubuntu tech blog

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 ...

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