Logging Monitoring

Ubuntu 20.04 — linux-nvidia-tegra-5.15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-nvidia-tegra-5.15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • June 6, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 6 June 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8255-3 Related CVEs: CVE-2023-2640 CVE-2023-32629 CVE-2026-23112 CVE-2026-23273 CVE-2024-35862 CVE-2024-50060 CVE-2026-23274 CVE-2026-23351  +12 more Upstream summary: Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux […]

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Fedora 42 — dotnet8.0 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — dotnet8.0 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • June 6, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-b1a2f623e7 Related CVEs: CVE-2026-32175 CVE-2026-32177 CVE-2026-35433 CVE-2026-42899 CVE-2026-26171 CVE-2026-32178 CVE-2026-32203 CVE-2026-33116 Upstream summary: Update to .NET SDK 8.0.127 and Runtime 8.0.27 Fixes: CVE-2026-32175,CVE-2026-32177,CVE-2026-35433,CVE-2026-42899 Release Notes: – SDK: https://github.com/dotnet/core/blob/main/release-notes/8.0/8.0.27/8.0.127.md – Runtime: https://github.com/dotnet/core/blob/main/release-notes/8.0/8.0.27/8.0.27.md Table […]

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Common Problems 115894

Ubuntu 26.04 LTS – apt update fails due to dpkg lock contention – Fix & Prevention

  • June 6, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 6 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]

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How to Secure the MariaDB Installation on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Secure the MariaDB Installation on FreeBSD 15

Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up secure the mariadb installation on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This guide […]

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AlmaLinux 10 — xorg-x11-server-Xwayland — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — xorg-x11-server-Xwayland — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:11352 Related CVEs: CVE-2026-33999 CVE-2026-34001 CVE-2026-34003 CVE-2025-62229 CVE-2025-62230 CVE-2025-62231 Upstream summary: Xwayland is an X server for running X clients under Wayland. Security Fix(es): * xorg: xwayland: X.Org X server: Denial of […]

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Common Problems 116115

Ubuntu 26.04 LTS – Failed sudo due to broken PAM configuration – Fix & Prevention

  • June 5, 2026
  • Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 5 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]

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Common Problems 116037

Ubuntu 26.04 LTS – journal logs consume root filesystem unexpectedly – Fix & Prevention

  • June 5, 2026
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 5 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]

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FreeBSD 15 — dovecot-pigeonhole — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — dovecot-pigeonhole — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • June 5, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 5 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: dovecot-pigeonhole — Sieve excessive resource usage Related CVEs: CVE-2019-11500 CVE-2020-28200 Upstream summary: Dovecot team reports reports: Sieve interpreter is not protected against abusive scripts that claim excessive resource usage. Fixed […]

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AlmaLinux 10 — image-builder — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — image-builder — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:13642 Related CVEs: CVE-2026-25679 CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 CVE-2025-58183 Upstream summary: A local binary for building customized OS artifacts such as VM images and OSTree commits. Uses osbuild under the hood. Security Fix(es): […]

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How to Configure GEOM RAID on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure GEOM RAID on FreeBSD 15 (FREEBSD-15-2)

Introduction How to Configure GEOM RAID on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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