Linux

How to Install MongoDB on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install MongoDB on Debian 11

Introduction This guide explains how to Install MongoDB on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the standard repositories […]

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AlmaLinux 8 — mutter — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — mutter — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:4381 Related CVEs: CVE-2020-13558 CVE-2020-24870 CVE-2020-27918 CVE-2020-29623 CVE-2020-36241 CVE-2021-1765 CVE-2021-1788 CVE-2021-1789  +12 more Upstream summary: GNOME is the default desktop environment of AlmaLinux. The following packages have been upgraded to a later […]

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Ubuntu 22.04 — libphp-adodb — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libphp-adodb — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 August 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6825-1 Related CVEs: CVE-2016-4855 CVE-2016-7405 CVE-2021-3850 Upstream summary: It was discovered that the PDO driver in ADOdb was incorrectly handling string quotes. A remote attacker could possibly use this issue […]

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Ubuntu 14.04 — exo — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — exo — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 August 2022 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6008-1 Related CVEs: CVE-2022-32278 Upstream summary: It was discovered that Exo did not properly sanitized desktop files. A remote attacker could possibly use this issue to to cause a crash […]

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Oracle Linux 8 — yajl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — yajl — vulnerability — patch and remediation guide (ELSA-2022-7524)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 August 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7524 Related CVEs: CVE-2022-24795 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 — protobuf — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — protobuf — vulnerability — patch and remediation guide (ELSA-2025-7138)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 August 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-7138 Related CVEs: CVE-2022-1941 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 8 — device-mapper-multipath — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — device-mapper-multipath — vulnerability — patch and remediation guide (ELSA-2022-7192)

🟠 High   ⏱ 15–60 min  Last verified: 25 August 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7192 Related CVEs: CVE-2022-41974 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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Alpine Linux edge — epiphany — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — epiphany — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 42.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — epiphany 42.2-r0 Related CVEs: CVE-2022-29536 CVE-2021-45085 CVE-2021-45086 CVE-2021-45087 CVE-2021-45088 Upstream summary: Alpine community repository for vedge ships epiphany 42.2-r0 which addresses CVE-2022-29536. Table of contents […]

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Oracle Linux 8 — ELSA-2022-9058-1: prometheus-jmx-exporter — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ELSA-2022-9058-1: prometheus-jmx-exporter — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 August 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9058-1 Related CVEs: CVE-2022-1471 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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Common Problems 117018

Ubuntu 22.04 LTS – netplan apply drops network connectivity – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 25 August 2022 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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 […]

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