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Oracle Linux 9 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2023-12836)

🟠 High   ⏱ 15–60 min  Last verified: 12 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12836 Related CVEs: CVE-2023-20593 CVE-2023-3610 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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Alpine Linux 3.18 — libdwarf — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — libdwarf — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 0.6.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libdwarf 0.6.0-r0 Related CVEs: CVE-2019-14249 CVE-2015-8538 Upstream summary: Alpine main repository for vv3.18 ships libdwarf 0.6.0-r0 which addresses CVE-2019-14249. Table of contents Symptom & Impact […]

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CentOS Stream 9 — dnsmasq — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — dnsmasq — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 August 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2024:1334 Related CVEs: CVE-2023-50387 CVE-2023-50868 CVE-2023-28450 CVE-2022-0934 Upstream summary: The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server. Security Fix(es): * […]

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How to Set Up Yubikey Authentication on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Yubikey Authentication on Debian 12

Introduction How to Set Up Yubikey Authentication 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 from Debian 12. […]

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Common Problems 111767

Windows Server 2022 — RRAS NAT service stops after reboot — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 12 August 2023 Affected versions: Windows Server 2022 📖 ~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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openSUSE Leap 15.5 — libvpl — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — libvpl — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:0305-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-50186 Upstream summary: GStreamer AV1 Video Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on […]

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Oracle Linux 9 — nodejs and nodejs-nodemon security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — nodejs and nodejs-nodemon security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-0321)

🟡 Medium   ⏱ 10–30 min  Last verified: 11 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0321 Related CVEs: CVE-2022-43548 CVE-2022-35256 CVE-2021-44906 CVE-2022-3517 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Windows Server 2022 — KB5022353 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5022353 — 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 KB5022353 • 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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How to Set Up ClamAV Antivirus on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up ClamAV Antivirus on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up clamav antivirus on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up ClamAV Antivirus on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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Common Problems 120073

Debian 12 – DNS resolution intermittently fails with systemd-resolved

🟠 High   ⏱ 5–30 min  Last verified: 11 August 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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