Operations

Alpine Linux 3.18 — java-postgresql-jdbc — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — java-postgresql-jdbc — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 14, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 42.5.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — java-postgresql-jdbc 42.5.1-r0 Related CVEs: CVE-2022-41946 CVE-2022-31197 CVE-2022-21724 CVE-2020-13692 Upstream summary: Alpine community repository for vv3.18 ships java-postgresql-jdbc 42.5.1-r0 which addresses CVE-2022-41946. Table of contents Symptom […]

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Ubuntu 18.04 — pixman — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — pixman — vulnerability — patch and remediation guide

  • May 14, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 14 May 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5718-1 Related CVEs: CVE-2022-44638 Upstream summary: Maddie Stone discovered that pixman incorrectly handled certain memory operations. A remote attacker could use this issue to cause pixman to crash, resulting in […]

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Rocky Linux 8 — python-pymongo — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — python-pymongo — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 14, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2023:5994 Related CVEs: CVE-2023-40217 CVE-2023-32681 Upstream summary: Python is an interpreted, interactive, object-oriented programming language that supports modules, classes, exceptions, high-level dynamic data types, and dynamic typing. The python27 packages […]

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How to Deploy a .NET Application on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Deploy a .NET Application on RHEL 7

  • May 14, 2023
  • Linux
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How to Deploy a .NET Application on RHEL 7 Microsoft’s .NET (formerly .NET Core) is a cross-platform, open-source runtime that runs on Linux, including Red Hat Enterprise Linux 7. With Microsoft publishing an official yum repository for RHEL, installing .NET SDK and deploying web applications is straightforward and fully supported. In this tutorial, you will […]

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Common Problems 114390

DNF Metadata Lock Or Timeout During Updates

🟡 Medium   ⏱ 5–30 min  Last verified: 13 May 2023 📖 ~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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Oracle Linux 9 — podman — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — podman — security and stability fixes — required update (ELSA-2024-3826)

  • May 13, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 13 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3826 Related CVEs: CVE-2024-28176 CVE-2024-28180 CVE-2023-45290 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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How to Configure a Virtual Host in Apache on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure a Virtual Host in Apache on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying configure a virtual host in apache on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure a Virtual Host in Apache on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, […]

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AlmaLinux 9 — wavpack — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — wavpack — vulnerability — patch and remediation guide

  • May 13, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:8139 Related CVEs: CVE-2021-44269 Upstream summary: WavPack is a completely open audio compression format providing lossless, high-quality lossy, and a unique hybrid compression mode. Security Fix(es): * wavpack: Heap out-of-bounds read in […]

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