Package Management

Ubuntu 16.04 — drupal7 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — drupal7 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

  • December 30, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 December 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7658-1 Related CVEs: CVE-2020-11023 CVE-2020-11022 CVE-2020-13671 CVE-2020-28948 CVE-2020-28949 CVE-2015-2559 CVE-2015-2749 CVE-2015-2750  +2 more Upstream summary: It was discovered that Drupal incorrectly parsed untrusted HTML. A remote attacker could possibly use […]

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Common Problems 115607

yum Hangs Behind Proxy Due to SSL Inspection

🟡 Medium   ⏱ 5–30 min  Last verified: 30 December 2020 📖 ~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 Spinnaker on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Spinnaker on SLES 12

Introduction This tutorial covers How to Set Up Spinnaker on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh […]

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Common Problems 114945

Podman Container Fails to Start After Host Update

🟡 Medium   ⏱ 5–30 min  Last verified: 30 December 2020 📖 ~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 114910

DNF lock contention from concurrent package processes

🟡 Medium   ⏱ 5–30 min  Last verified: 30 December 2020 📖 ~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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SLES 12 — p11-kit — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — p11-kit — vulnerability — patch and remediation guide

  • December 30, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1513-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-29362 Upstream summary: An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by […]

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How to Set Up Two-Factor Authentication with Google Authenticator on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication with Google Authenticator on SLES 15

Introduction This tutorial covers How to Set Up Two-Factor Authentication with Google Authenticator on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up […]

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Oracle Linux 8 — nodejs:10 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:10 — vulnerability — patch and remediation guide (ELSA-2020-0579)

  • December 30, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0579 Related CVEs: CVE-2019-15604 CVE-2019-15605 CVE-2019-15606 CVE-2019-16776 CVE-2019-16775 CVE-2019-16777 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Implement Network Segmentation on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Implement Network Segmentation on Oracle Linux 8

Introduction How to Implement Network Segmentation 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 configuration is […]

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Oracle Linux 8 — systemd — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — systemd — security and stability fixes — required update (ELSA-2019-0990)

  • December 29, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 29 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-0990 Related CVEs: CVE-2019-6454 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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