Linux

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2019-1696)

🔴 Critical   ⏱ 15–90 min  Last verified: 30 October 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1696 Related CVEs: CVE-2019-11708 CVE-2019-11707 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 118061

Ubuntu 18.04 Snap Apps Not Launching

🟡 Medium   ⏱ 5–30 min  Last verified: 29 October 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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Common Problems 115021

RHEL 8 auditd Log Flood Filling /var and Disrupting Services

🟡 Medium   ⏱ 5–30 min  Last verified: 29 October 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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openSUSE Tumbleweed — obs-service-refresh_patches — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — obs-service-refresh_patches — 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-2018-12477 Upstream summary: A Improper Neutralization of CRLF Sequences vulnerability in Open Build Service allows remote attackers to cause deletion of directories by tricking obs-service-refresh_patches […]

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How to Install Docker Engine on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Docker Engine on RHEL 8

Docker is not available in RHEL 8’s default AppStream repositories, so installing it requires adding the official Docker CE repository from Docker’s own package server. Unlike earlier RHEL versions, RHEL 8 ships with Podman as its native container runtime, but Docker CE remains a popular choice for teams migrating existing workflows. This tutorial walks through […]

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

openSUSE Tumbleweed — ktexteditor — 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-2018-10361 Upstream summary: An issue was discovered in KTextEditor 5.34.0 through 5.45.0. Insecure handling of temporary files in the KTextEditor's kauth_ktexteditor_helper service (as utilized in […]

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Common Problems 118105

Ubuntu 18.04 LTS – failed unattended-upgrades leave packages unconfigured

🟠 High   ⏱ 5–30 min  Last verified: 28 October 2019 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]

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Common Problems 118037

Ubuntu 18.04 Cron Jobs Not Running Due to PAM Account Restrictions

🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 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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