Security Hardening

openSUSE Leap 15.6 — boost_1_66-jam — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — boost_1_66-jam — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2017:2998-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-9840 Upstream summary: inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic. Table of contents Symptom […]

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SLES 15 — rekor — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — rekor — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 August 2025 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory RHSA-2025:3344 (see also SUSE bugzilla) Related CVEs: CVE-2025-30204 CVE-2025-22868 CVE-2025-22869 CVE-2025-27144 CVE-2023-30551 CVE-2024-6104 CVE-2023-45288 CVE-2023-33199  +1 more Upstream summary: golang-jwt is a Go implementation of JSON Web Tokens. Starting in version 3.2.0 […]

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How to Set Up a LAMP Stack on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up a LAMP Stack on Oracle Linux 10

Introduction This tutorial demonstrates how to Set Up a LAMP Stack 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 […]

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Windows Server 2016 — KB5062619 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5062619 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5062619 • MSRC update-guide entry Related CVEs: CVE-2025-47980 CVE-2025-47981 CVE-2025-55230 CVE-2025-49757 CVE-2025-47971 CVE-2025-47976 CVE-2025-47984 CVE-2025-47985  +12 more Affected components: Windows Server 2016 Windows Server 2016 (Server Core installation) Microsoft summary: Exposure of […]

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Oracle Linux 9 — java-11-openjdk security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — java-11-openjdk security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-5695)

🟠 High   ⏱ 15–60 min  Last verified: 10 August 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5695 Related CVEs: CVE-2022-34169 CVE-2022-21541 CVE-2022-21540 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Common Problems 124130

Oracle Linux 10 – grub kernel parameter change not applied after update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 August 2025 Affected versions: Oracle Linux 10 📖 ~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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NetBSD 10.0 — ghoscript — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ghoscript — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2013-5653 Upstream summary: pkgsrc audit-packages flagged ghoscript<9.20 for vulnerability class 'information-disclosure'. Reference: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-5653 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 124051

Oracle Linux 10 – New kernel installed but old kernel still boots by default – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 10 August 2025 Affected versions: Oracle Linux 10 📖 ~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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NetBSD 10.0 — libde265 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — libde265 — multiple vulnerabilities (20 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-2020-21606 CVE-2020-21602 CVE-2020-21604 CVE-2020-21603 CVE-2020-21601 CVE-2020-21600 CVE-2020-21597 CVE-2020-21599  +12 more Upstream summary: pkgsrc audit-packages flagged libde265<1.0.10 for vulnerability class 'buffer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-21606 Table of contents Symptom & Impact Environment […]

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How to Add a Sudo User on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Add a Sudo User on CentOS Stream 10

Introduction Setting up add a sudo user on centos stream 10 on a CentOS Stream 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Add a Sudo User on CentOS Stream 10, with all the commands you need, the SELinux and firewalld considerations to […]

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