Security Hardening

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2025-28026)

🟠 High   ⏱ 15–60 min  Last verified: 26 June 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-28026 Related CVEs: CVE-2025-40019 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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Oracle Linux 9 — bind9.18 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — bind9.18 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 June 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-7915 Related CVEs: CVE-2026-1519 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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Red Hat Enterprise Linux 7 — rhc — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 7 — rhc — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 7 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:8855 Related CVEs: CVE-2026-25679 CVE-2025-61726 CVE-2025-61729 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution […]

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Debian 13 — grub2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — grub2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-4128 CVE-2013-4577 CVE-2015-8370 CVE-2017-9763 CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310  +12 more Upstream summary: GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with […]

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NetBSD 10.0 — gst-plugins1-ugly — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — gst-plugins1-ugly — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2026-2920 CVE-2026-2922 CVE-2017-5847 CVE-2017-5846 Upstream summary: pkgsrc audit-packages flagged gst-plugins1-ugly<1.22.5 for vulnerability class 'integer-overflow'. Reference: https://gstreamer.freedesktop.org/security/sa-2023-0004.html Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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Common Problems 122114

Cron Jobs Not Running on Schedule

🟡 Medium   ⏱ 5–30 min  Last verified: 25 June 2026 Affected versions: FreeBSD 15 📖 ~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 Install Ansible on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install Ansible on Oracle Linux 10

Introduction This tutorial demonstrates how to Install Ansible on Oracle Linux 10 on Oracle Linux 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 10 system with the default AppStream […]

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Common Problems 115945

No Audio Output with PipeWire/Pulse Compatibility

🟡 Medium   ⏱ 5–30 min  Last verified: 25 June 2026 📖 ~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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FreeBSD 15 — corkscrew — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — corkscrew — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: corkscrew — buffer overflow vulnerability Upstream summary: The affected corkscrew versions use sscanf calls without proper bounds checking. In the authentication file parsing routine this can cause an exploitable buffer […]

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FreeBSD 12 — py311-Jinja — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-Jinja — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 June 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Jinja2 — Sandbox breakout through attr filter selecting format method Related CVEs: CVE-2024-34064 CVE-2025-27516 Upstream summary: [email protected] reports: Jinja is an extensible templating engine. Prior to 3.1.6, an oversight in […]

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