Debian 11

Debian 11 — t-coffee — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — t-coffee — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8621 Upstream summary: t-coffee before 11.00.8cbe486-2 allows local users to write to ~/.t_coffee globally. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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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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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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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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Debian 11 — valgrind — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — valgrind — 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-2008-4865 Upstream summary: Untrusted search path vulnerability in valgrind before 3.4.0 allows local users to execute arbitrary programs via a Trojan horse .valgrindrc file in the current working […]

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Debian 11 — libxdmcp — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libxdmcp — 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-2017-2625 Upstream summary: It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could […]

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

Debian 11 — node-negotiator — 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-2016-10539 Upstream summary: negotiator is an HTTP content negotiator for Node.js and is used by many modules and frameworks including Express and Koa. The header for "Accept-Language", when […]

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