Logging Monitoring

Debian 12 — ffmpeg — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ffmpeg — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • October 13, 2023
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 13 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-4048 CVE-2006-4800 CVE-2008-3162 CVE-2008-3230 CVE-2008-4610 CVE-2008-4866 CVE-2008-4867 CVE-2009-0385  +12 more Upstream summary: Heap-based buffer overflow in the avcodec_default_get_buffer function (utils.c) in FFmpeg libavcodec 0.4.9-pre1 and earlier, as used […]

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How to Set Up Two-Factor Authentication with Google Authenticator on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication with Google Authenticator on Debian 12

  • October 13, 2023
  • Linux
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Introduction How to Set Up Two-Factor Authentication with Google Authenticator on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ […]

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Common Problems 119969

Debian 12: Name resolution failures with systemd-resolved

  • October 13, 2023
  • Linux
  • Comment off

🟠 High   ⏱ 5–30 min  Last verified: 13 October 2023 Affected versions: Debian 12 📖 ~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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Oracle Linux 9 — Unbreakable Enterprise kernel — bug fix update — issues resolved — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — bug fix update — issues resolved (ELSA-2026-50171)

  • October 12, 2023
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 12 October 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50171 Related CVEs: CVE-2026-23401 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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AlmaLinux 9 — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • October 12, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:0626 Related CVEs: CVE-2022-47629 CVE-2022-3515 Upstream summary: KSBA (pronounced Kasbah) is a library to make X.509 certificates as well as the CMS easily accessible by other applications. Both specifications are building blocks […]

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Common Problems 120076

Debian 12 Root Partition Full from Unbounded Journal Logs

  • October 12, 2023
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 12 October 2023 Affected versions: Debian 12 📖 ~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 Set Up SELinux MLS Policy on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up SELinux MLS Policy on CentOS Stream 9

  • October 12, 2023
  • CentOS
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Introduction Setting up set up selinux mls policy on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up SELinux MLS Policy on CentOS Stream 9, with all the commands you need, the SELinux and firewalld […]

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NetBSD 9.4 — raptor — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — raptor — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • October 12, 2023
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2012-0037 CVE-2017-18926 CVE-2020-25713 Upstream summary: pkgsrc audit-packages flagged raptor-[0-9]* for vulnerability class 'sensitive-information-exposure'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0037 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Common Problems 114586

OOM Killer Terminates Application on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 12 October 2023 📖 ~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 & Cross-Refs References & Further […]

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Windows Server 2022 — KB5022297 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5022297 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5022297 • MSRC update-guide entry Related CVEs: CVE-2023-21535 CVE-2023-21546 CVE-2023-21543 CVE-2023-21548 CVE-2023-21555 CVE-2023-21556 CVE-2023-21561 CVE-2023-21679  +12 more Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root […]

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