Linux

Debian 11 — tdiary — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tdiary — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2411 CVE-2006-6174 CVE-2006-6852 CVE-2010-0726 Upstream summary: Cross-Site Request Forgery (CSRF) vulnerability in tDiary 2.1.1, and tDiary 2.0.1 and earlier, allows remote attackers to conduct actions as another user, […]

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Gentoo Linux — app-arch/gnome-autoar — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-arch/gnome-autoar — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202105-10 Related CVEs: CVE-2020-36241 CVE-2021-28650 Upstream summary: It was discovered that GNOME Autoar could extract files outside of the intended directory. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Ubuntu 18.04 — rpm — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — rpm — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 March 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5273-1 Related CVEs: CVE-2021-20266 CVE-2021-20271 CVE-2021-3421 Upstream summary: Demi M. Obenour discovered that RPM Package Manager incorrectly handled certain files. An attacker could possibly use this issue to corrupt the […]

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Debian 10 — postgresql-11 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — postgresql-11 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 March 2022 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-10208 CVE-2020-1720 CVE-2021-23214 CVE-2021-32027 CVE-2022-1552 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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How to Configure Network Bridging on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Network Bridging on Debian 11

Introduction How to Configure Network Bridging on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 11. This […]

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Common Problems 120511

Debian 11 – Network Interface Rename Breaks Connectivity – Persistent Naming Fix

🟠 High   ⏱ 5–30 min  Last verified: 9 March 2022 Affected versions: Debian 11 📖 ~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 Configure Horizontal Pod Autoscaling on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Horizontal Pod Autoscaling on CentOS Stream 9

Introduction How to Configure Horizontal Pod Autoscaling on CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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AlmaLinux 8 — pesign — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — pesign — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:1572 Related CVEs: CVE-2022-3560 Upstream summary: The pesign packages provide the pesign utility for signing UEFI binaries as well as other associated tools. Security Fix(es): * pesign: Local privilege escalation on pesign […]

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Debian 11 — node-json-schema — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-json-schema — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3918 Upstream summary: json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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How to Set Up NFS Server and Client on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up NFS Server and Client on Debian 11

Introduction This guide explains how to Set Up NFS Server and Client 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 […]

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