Linux

openSUSE Tumbleweed — python38-suds — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python38-suds — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:15105-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-2217 Upstream summary: cache.py in Suds 0.4, when tempdir is set to None, allows local users to redirect SOAP queries and possibly have other unspecified […]

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Ubuntu 16.04 — gnome-shell — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — gnome-shell — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 November 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7052-1 Related CVEs: CVE-2017-8288 CVE-2019-3820 Upstream summary: It was discovered that GNOME Shell mishandled extensions that fail to reload, possibly leading to extensions staying enabled on the lock screen. An […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.1.15-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libxcursor 1.1.15-r0 Related CVEs: CVE-2017-16612 Upstream summary: Alpine main repository for vedge ships libxcursor 1.1.15-r0 which addresses CVE-2017-16612. Table of contents Symptom & Impact Environment […]

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How to Configure a Static IP Address with NetworkManager on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure a Static IP Address with NetworkManager on RHEL 7

How to Configure a Static IP Address with NetworkManager on RHEL 7 Configuring a static IP address is one of the most fundamental tasks for any Linux system administrator. On Red Hat Enterprise Linux 7, NetworkManager is the default network management daemon, and it provides two powerful tools for managing connections: the command-line interface nmcli […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.7.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — hunspell 1.7.0-r1 Related CVEs: CVE-2019-16707 Upstream summary: Alpine main repository for vedge ships hunspell 1.7.0-r1 which addresses CVE-2019-16707. Table of contents Symptom & Impact Environment […]

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How To Secure MongoDB on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Secure MongoDB on Ubuntu 18.04

MongoDB doesn’t have authentication enabled by default, meaning that any user with access to the server where the database is installed can add and delete data without restriction. In order to secure this vulnerability, this tutorial will walk you through creating an administrative user and enabling authentication. You’ll then test to confirm that only this administrative user has access to the database.

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

openSUSE Tumbleweed — ksh — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:2756-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-14868 Upstream summary: In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw […]

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How to Use tmux for Terminal Multiplexing on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Use tmux for Terminal Multiplexing on RHEL 7

How to Use tmux for Terminal Multiplexing on RHEL 7 Every Linux administrator has experienced the frustration of losing a long-running process because an SSH connection dropped. tmux (terminal multiplexer) solves this problem by running your terminal sessions inside a persistent server process that survives disconnections. Beyond persistence, tmux allows you to split a single […]

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Common Problems 114916

RHEL 8 firewalld Zone Mismatch Blocks Application Port

🟡 Medium   ⏱ 5–30 min  Last verified: 9 November 2019 📖 ~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 & Cross-Refs References & Further […]

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