Linux

How to Configure Container Networking with CNI on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Container Networking with CNI on Debian 13

Introduction This guide explains how to Configure Container Networking with CNI on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with […]

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Alpine Linux 3.20 — perl-encode — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — perl-encode — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 3.12-r0 📖 ~4 min read  •  Source: Alpine secdb entry — perl-encode 3.12-r0 Related CVEs: CVE-2021-36770 Upstream summary: Alpine main repository for vv3.20 ships perl-encode 3.12-r0 which addresses CVE-2021-36770. Table of contents Symptom & Impact Environment […]

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Common Problems 116554

Ubuntu 24.04 LTS – KVM acceleration unavailable in virtualized hosts – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 October 2025 Affected versions: Ubuntu 24.04 LTS 📖 ~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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Debian 13 — openconnect — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — openconnect — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 18 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-5009 CVE-2010-3901 CVE-2010-3902 CVE-2010-3903 CVE-2012-3291 CVE-2012-6128 CVE-2013-7098 CVE-2019-16239  +2 more Upstream summary: Double free vulnerability in OpenConnect before 1.40 might allow remote AnyConnect SSL VPN servers to cause […]

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Debian 13 — obs-build — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — obs-build — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 October 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-14804 Upstream summary: The build package before 20171128 did not check directory names during extraction of build results that allowed untrusted builds to write outside of the target system,allowing […]

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Alpine Linux 3.20 — chrony — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — chrony — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 3.5.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — chrony 3.5.1-r0 Related CVEs: CVE-2020-14367 Upstream summary: Alpine main repository for vv3.20 ships chrony 3.5.1-r0 which addresses CVE-2020-14367. Table of contents Symptom & Impact Environment […]

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openSUSE Leap 15.6 — zabbix-ui — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — zabbix-ui — multiple vulnerabilities (2 CVEs) — 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-2024:0384-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-36461 CVE-2024-22114 Upstream summary: Within Zabbix, users have the ability to directly modify memory pointers in the JavaScript engine. Table of contents Symptom & […]

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Common Problems 116497

Ubuntu 24.04 LTS – NVIDIA driver update causes black screen – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 October 2025 Affected versions: Ubuntu 24.04 LTS 📖 ~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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Debian 13 — libjs-bootbox — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libjs-bootbox — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 October 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-46998 Upstream summary: Cross Site Scripting vulnerability in BootBox Bootbox.js v.3.2 through 6.0 allows a remote attacker to execute arbitrary code via a crafted payload to alert(), confirm(), prompt() […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:23048 Related CVEs: CVE-2025-31651 CVE-2025-55752 CVE-2025-48976 CVE-2025-48988 CVE-2025-48989 CVE-2025-49125 CVE-2025-52434 CVE-2025-52520  +12 more Upstream summary: Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. Security Fix(es): […]

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