Package Management

Debian 11 — opusfile — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — opusfile — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 June 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-47021 Upstream summary: A null pointer dereference issue was discovered in functions op_get_data and op_open1 in opusfile.c in xiph opusfile 0.9 thru 0.12 allows attackers to cause denial […]

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Ubuntu 14.04 — cyrus-sasl2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — cyrus-sasl2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 June 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5301-2 Related CVEs: CVE-2022-24407 CVE-2019-19906 Upstream summary: USN-5301-1 fixed a vulnerability in Cyrus. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: […]

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Alpine Linux 3.18 — dpkg — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — dpkg — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.21.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dpkg 1.21.8-r0 Related CVEs: CVE-2022-1664 Upstream summary: Alpine main repository for vv3.18 ships dpkg 1.21.8-r0 which addresses CVE-2022-1664. Table of contents Symptom & Impact Environment […]

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Oracle Linux 8 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide (ELSA-2023-2805)

🟡 Medium   ⏱ 10–30 min  Last verified: 15 June 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2805 Related CVEs: CVE-2022-4283 CVE-2022-46343 CVE-2022-3551 CVE-2022-46341 CVE-2023-0494 CVE-2022-3550 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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

Oracle Linux 8 — libtiff — vulnerability — patch and remediation guide (ELSA-2023-0095)

🟡 Medium   ⏱ 10–30 min  Last verified: 15 June 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0095 Related CVEs: CVE-2022-2953 CVE-2022-2058 CVE-2022-2056 CVE-2022-2867 CVE-2022-2521 CVE-2022-2057 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Alpine Linux 3.18 — ark — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — ark — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 20.08.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — ark 20.08.0-r1 Related CVEs: CVE-2020-24654 CVE-2020-16116 Upstream summary: Alpine community repository for vv3.18 ships ark 20.08.0-r1 which addresses CVE-2020-24654. Table of contents Symptom & Impact […]

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Amazon Linux 2023 — snakeyaml — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — snakeyaml — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-375 Related CVEs: CVE-2022-38752 CVE-2022-41854 CVE-2022-38750 Upstream summary: Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS). If the parser is running on […]

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How to Configure Kubernetes Persistent Volumes on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Kubernetes Persistent Volumes on RHEL 9

Kubernetes separates storage provisioning (creating storage volumes) from storage consumption (using volumes in pods) through two resource types: PersistentVolumes (PVs) and PersistentVolumeClaims (PVCs). A PersistentVolume is a piece of storage in the cluster provisioned by an administrator or dynamically by a StorageClass. A PersistentVolumeClaim is a request for storage by a user — it specifies […]

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How to Configure Resource Limits in Kubernetes on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Resource Limits in Kubernetes on Oracle Linux 9

Introduction Setting up configure resource limits in kubernetes on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Resource Limits in Kubernetes on Oracle Linux 9, with all the commands you need, the SELinux and firewalld […]

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