Systemd Services

Ubuntu 20.04 — vino — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — vino — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • January 29, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 29 January 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4636-1 Related CVEs: CVE-2020-25708 CVE-2014-6053 CVE-2018-7225 CVE-2019-15681 CVE-2020-14397 CVE-2020-14402 CVE-2020-14403 CVE-2020-14404 Upstream summary: It was discovered that LibVNCServer incorrectly handled certain internals. An attacker could possibly use this issue to […]

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Oracle Linux 8 — Podman Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Podman Issues (8-PODMAN-ISSUES)

  • January 28, 2021
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 28 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNB-ol8-issues-podman 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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Common Problems 118515

snapd Installation or Refresh Failures on Ubuntu 16.04

🟡 Medium   ⏱ 5–30 min  Last verified: 28 January 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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Arch Linux — python-httplib2 — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — python-httplib2 — vulnerability — patch and remediation guide

  • January 28, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202102-35 Related CVEs: CVE-2021-21240 Upstream summary: Type: denial of service. Status: Fixed. Affected: 0.18.1-4. Fixed in: 0.19.0-1. Group: AVG-1546. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Configure Shared Memory Segments on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Shared Memory Segments on IBM AIX 7.1

  • January 28, 2021
  • IBM AIX
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Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure shared memory segments on ibm aix 7.1 on […]

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IBM AIX 7.2 — CVE-2021-38933 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-38933 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 28 January 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-38933, IBM Support Bulletin CVE: CVE-2021-38933 NVD summary: IBM Sterling Connect:Direct for UNIX 1.5 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force […]

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FreeBSD 12 — py39-rencode — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-rencode — vulnerability — patch and remediation guide

  • January 28, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 28 January 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py39-rencode — infinite loop that could lead to Denial of Service Related CVEs: CVE-2021-40839 Upstream summary: NIST reports: The rencode package through 1.0.6 for Python allows an infinite loop in […]

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How to Configure OPcache for PHP on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure OPcache for PHP on Oracle Linux 8

Introduction How to Configure OPcache for PHP 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 […]

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IBM AIX 7.1 — CVE-2020-4657 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2020-4657 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 27 January 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2020-4657, IBM Support Bulletin CVE: CVE-2020-4657 NVD summary: IBM Sterling B2B Integrator 5.2.0.0 through 6.0.3.2 Standard Edition is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in […]

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

Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-4356)

  • January 27, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 27 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4356 Related CVEs: CVE-2021-28950 CVE-2021-31916 CVE-2020-26146 CVE-2021-29646 CVE-2021-3732 CVE-2021-31829 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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