Linux

Ubuntu 16.04 — rpm — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — rpm — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 March 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~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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Arch Linux — exiv2 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — exiv2 — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-54 Related CVEs: CVE-2021-3482 CVE-2021-32617 CVE-2021-29623 CVE-2021-29473 CVE-2021-29470 CVE-2021-29464 CVE-2021-29463 CVE-2021-29458  +1 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 0.27.3-1. Fixed in: 0.27.4-1. Group: AVG-1772. Table of contents […]

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Oracle Linux 8 — mailman:2.1 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — mailman:2.1 — vulnerability — patch and remediation guide (ELSA-2021-4826)

🟠 High   ⏱ 15–60 min  Last verified: 17 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4826 Related CVEs: CVE-2021-42097 CVE-2021-42096 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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SLES 12 — telnet — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — telnet — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 March 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3471-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-39028 Upstream summary: telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or […]

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

Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide (ELSA-2022-9656)

🟠 High   ⏱ 15–60 min  Last verified: 17 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9656 Related CVEs: CVE-2022-21540 CVE-2022-21549 CVE-2022-34169 CVE-2022-25647 CVE-2022-21541 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 Woodpecker CI on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Woodpecker CI on Debian 11

Introduction How to Configure Woodpecker CI 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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How to Configure Software RAID on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Software RAID on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure software raid on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Software RAID on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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

AlmaLinux 8 — dyninst — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4232 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Alpine Linux edge — usbredir — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — usbredir — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.12.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — usbredir 0.12.0-r0 Related CVEs: CVE-2021-3700 Upstream summary: Alpine community repository for vedge ships usbredir 0.12.0-r0 which addresses CVE-2021-3700. Table of contents Symptom & Impact Environment […]

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How to Configure Static IP on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Static IP on Debian 11

Introduction Deploying configure static ip on debian 11 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 You will need […]

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