Debian 11

Debian 11 — arc — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — arc — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2945 CVE-2005-2992 CVE-2015-9275 Upstream summary: arc 5.21j and earlier create temporary files with world-readable permissions, which allows local users to read sensitive information from files created by (1) […]

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Debian 11 — rsync — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rsync — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0962 CVE-2004-0426 CVE-2004-0792 CVE-2004-2093 CVE-2006-2083 CVE-2007-4091 CVE-2007-6199 CVE-2007-6200  +12 more Upstream summary: Heap-based buffer overflow in rsync before 2.5.7, when running in server mode, allows remote attackers to […]

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How to Install Kotlin and Set Up a JVM Project on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Kotlin and Set Up a JVM Project on Debian 11

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install kotlin and set up a jvm project on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow […]

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Common Problems 120673

Debian 11: certbot renewal fails because web server port is occupied

🟠 High   ⏱ 5–30 min  Last verified: 3 April 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 — groovy — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — groovy — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-3253 CVE-2016-6814 CVE-2020-17521 Upstream summary: The MethodClosure class in runtime/MethodClosure.java in Apache Groovy 1.7.0 through 2.4.3 allows remote attackers to execute arbitrary code or cause a denial of […]

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

Debian 11 — node-stringstream — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-21270 Upstream summary: Versions less than 0.0.6 of the Node.js stringstream module are vulnerable to an out-of-bounds read because of allocation of uninitialized buffers when a number is […]

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How to Set Up MariaDB Replication on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up MariaDB Replication on Debian 11

Introduction How to Set Up MariaDB Replication 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. […]

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How to Write Ansible Playbooks for Debian 11 Systems — step-by-step Debian 11 tutorial on Progressive Robot

How to Write Ansible Playbooks for Debian 11 Systems

Introduction Deploying write ansible playbooks for debian 11 systems on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

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

Debian 11 — litmus — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2474 Upstream summary: neon before 0.28.6, when OpenSSL or GnuTLS is used, does not properly handle a '\0' character in a domain name in the subject's Common Name […]

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

Debian 11 — guake — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-23556 Upstream summary: The package guake before 3.8.5 are vulnerable to Exposed Dangerous Method or Function due to the exposure of execute_command and execute_command_by_uuid methods via the d-bus […]

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