Logging Monitoring

Oracle Linux 8 — Oracle Linux 8 Doesn't Recognize SAS Controllers on Older Oracle Sun Hardware — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Oracle Linux 8 Doesn’t Recognize SAS Controllers on Older Oracle Sun Hardware

🟠 High   ⏱ 5–30 min  Last verified: 5 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 29120478 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 […]

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

openSUSE Tumbleweed — usbredir — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-3700 Upstream summary: A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing […]

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

Debian 11 — dar — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-3528 Upstream summary: The blowfish mode in DAR before 2.3.4 uses weak Blowfish-CBC cryptography by (1) discarding random bits by the blowfish::make_ivec function in libdar/crypto.cpp that results in […]

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Debian 11 — l2tpns — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — l2tpns — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-5873 Upstream summary: Buffer overflow in the cluster_process_heartbeat function in cluster.c in layer 2 tunneling protocol network server (l2tpns) before 2.1.21 allows remote attackers to cause a denial […]

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

Debian 11 — backbone — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-10537 Upstream summary: backbone is a module that adds in structure to a JavaScript heavy application through key-value pairs and custom events connecting to your RESTful API through […]

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Ubuntu 20.04 — glances — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — glances — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 December 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5187-1 Related CVEs: CVE-2021-23418 Upstream summary: It was discovered that Glances incorrectly parsed untrusted XML data due to usage of xmlrpclib. An attacker could possibly use this to perform an […]

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Ubuntu 18.04 — zsh — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — zsh — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 December 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5325-1 Related CVEs: CVE-2019-20044 CVE-2021-45444 CVE-2018-0502 CVE-2018-1100 CVE-2018-13259 Upstream summary: Sam Foxman discovered that Zsh incorrectly handled certain inputs. An attacker could possibly use this issue to regain dropped privileges. […]

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Amazon Linux 2 — mod_auth_mellon — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — mod_auth_mellon — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1200 Related CVEs: CVE-2019-3877 CVE-2019-3878 CVE-2021-3639 CVE-2019-13038 Upstream summary: A vulnerability was found in a previous version of mod_auth_mellon. An open redirect in the logout URL allows requests with backslashes […]

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How to Configure XFS File System on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure XFS File System on Debian 9

Introduction How to Configure XFS File System on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. […]

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Ubuntu 18.04 — librecad — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — librecad — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 December 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5957-1 Related CVEs: CVE-2018-19105 CVE-2021-21898 CVE-2021-21899 CVE-2021-21900 CVE-2021-45341 CVE-2021-45342 CVE-2021-45343 Upstream summary: Cody Sixteen discovered that LibreCAD incorrectly handled memory when parsing DXF files. An attacker could use this issue […]

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