Troubleshooting

openSUSE Tumbleweed — npm14 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — npm14 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 19, 2021
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0802-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-8174 CVE-2021-22930 CVE-2021-22940 CVE-2021-37701 CVE-2021-37713 CVE-2021-39135 CVE-2020-11080 CVE-2020-7774  +12 more Upstream summary: napi_get_value_string_*() allows various kinds of memory corruption in node < 10.21.0, 12.18.0, and […]

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Oracle Linux 8 — glibc security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — glibc security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1585)

  • May 18, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 18 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1585 Related CVEs: CVE-2021-3326 CVE-2019-9169 CVE-2019-25013 CVE-2020-27618 CVE-2016-10228 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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Common Problems 115603

RHEL 7 – Postfix Service Starts but Mail Queue Never Drains

  • May 18, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 18 May 2021 📖 ~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 115029

RHEL 8 – Podman Pull Fails Due to Untrusted Registry Certificate

  • May 18, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 18 May 2021 📖 ~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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How to Set Up K3s Lightweight Kubernetes on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up K3s Lightweight Kubernetes on Oracle Linux 8

Introduction How to Set Up K3s Lightweight Kubernetes on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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

AlmaLinux 8 — libtalloc — vulnerability — patch and remediation guide

  • May 18, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:2075 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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FreeBSD 13 — py26-django-devel — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py26-django-devel — multiple vulnerabilities (10 CVEs) — patch and remediation guide

  • May 18, 2021
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 18 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: django — multiple vulnerabilities Related CVEs: CVE-2009-3695 CVE-2010-3082 CVE-2012-3442 CVE-2012-3443 CVE-2012-3444 CVE-2013-1443 CVE-2013-4315 CVE-2014-0472  +2 more Upstream summary: The Django project reports: These releases address an unexpected code-execution issue, a […]

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FreeBSD 13 — ko-netscape-communicator-linux — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ko-netscape-communicator-linux — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • May 18, 2021
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 18 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libpng stack-based buffer overflow and other code concerns Related CVEs: CVE-2004-0597 CVE-2004-0598 CVE-2004-0599 Upstream summary: Chris Evans has discovered multiple vulnerabilities in libpng, which can be exploited by malicious people […]

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Common Problems 113414

Windows Server 2016 – Failover cluster loses quorum after witness outage – Fix & Prevention (FIX-PREVENTION-2)

🟠 High   ⏱ 5–30 min  Last verified: 18 May 2021 Affected versions: Windows Server 2016 📖 ~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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AlmaLinux 8 — shim-unsigned-aarch64 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — shim-unsigned-aarch64 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • May 18, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:1734 Related CVEs: CVE-2020-14372 CVE-2020-25632 CVE-2020-25647 CVE-2020-27749 CVE-2020-27779 CVE-2021-20225 CVE-2021-20233 Upstream summary: The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure […]

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