Linux

Alpine Linux 3.18 — fetchmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — fetchmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 6.4.22-r0 📖 ~4 min read  •  Source: Alpine secdb entry — fetchmail 6.4.22-r0 Related CVEs: CVE-2021-39272 CVE-2021-36386 Upstream summary: Alpine community repository for vv3.18 ships fetchmail 6.4.22-r0 which addresses CVE-2021-39272. Table of contents Symptom & Impact […]

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Oracle Linux 9 — nodejs:18 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — nodejs:18 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-8832)

🟡 Medium   ⏱ 10–30 min  Last verified: 28 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8832 Related CVEs: CVE-2022-43548 CVE-2022-3517 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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Common Problems 120144

Debian 12 Permissions Changed Incorrectly After Recursive chmod

🟠 High   ⏱ 5–30 min  Last verified: 28 August 2023 Affected versions: Debian 12 📖 ~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 AlertManager on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure AlertManager on CentOS Stream 9

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

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openSUSE Tumbleweed — jbig2dec — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — jbig2dec — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2023-46361 Upstream summary: Artifex Software jbig2dec v0.20 was discovered to contain a SEGV vulnerability via jbig2_error at /jbig2dec/jbig2.c. Table of contents Symptom & Impact Environment […]

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Debian 12 — qtcreator — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — qtcreator — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-3374 Upstream summary: Qt Creator before 2.0.1 places a zero-length directory name in the LD_LIBRARY_PATH, which allows local users to gain privileges via a Trojan horse shared library […]

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Debian 12 — ardour — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ardour — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-4974 CVE-2010-3349 CVE-2020-22617 Upstream summary: Heap-based buffer overflow in the flac_buffer_copy function in libsndfile 1.0.17 and earlier might allow remote attackers to execute arbitrary code via a FLAC […]

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How To Use DM-Crypt to Create an Encrypted Volume on an Ubuntu VPS — step-by-step Linux tutorial on Progressive Robot

How To Use DM-Crypt to Create an Encrypted Volume on an Ubuntu VPS

Encrypting your data is a great way to ensure that nobody will have access to your sensitive information if they ever get access to your server. There are many possible uses for this, such as making it easier to decommission servers with sensitive data, storing uncommonly accessed but important files, etc. In this guide, we will discuss how to use dm-crypt to create create an encrypted volume out of a regular empty file.

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Ubuntu 14.04 — libhtml-stripscripts-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libhtml-stripscripts-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 August 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6100-1 Related CVEs: CVE-2023-24038 Upstream summary: It was discovered that HTML::StripScripts does not properly parse HTML content with certain style attributes. A remote attacker could use this issue to cause […]

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