Linux

Ubuntu 20.04 — libpodofo — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libpodofo — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 January 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7217-1 Related CVEs: CVE-2017-5886 CVE-2018-11255 CVE-2018-12983 CVE-2018-20797 CVE-2018-5308 CVE-2018-8002 CVE-2019-10723 CVE-2020-18971  +2 more Upstream summary: It was discovered that the PoDoFo library could dereference a NULL pointer when getting the […]

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Como Gerenciar Réplicas e Clientes no Redis — step-by-step Linux tutorial on Progressive Robot

Como Gerenciar Réplicas e Clientes no Redis

O Redis é um armazenamento de dados open-source de chave-valor na memória. Um dos seus recursos mais procurados é o suporte à replicação: qualquer servidor Redis pode replicar seus dados para qualquer número de réplicas, permitindo alta escalabilidade de…

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Oracle Linux 8 — perl-Convert-ASN1 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — perl-Convert-ASN1 — vulnerability — patch and remediation guide (ELSA-2024-3049)

🟡 Medium   ⏱ 10–30 min  Last verified: 13 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3049 Related CVEs: CVE-2013-7488 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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Oracle Linux 8 — httpd:2.4 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — httpd:2.4 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1809)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1809 Related CVEs: CVE-2020-11993 CVE-2018-17199 CVE-2020-11984 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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Common Problems 115523

RHEL 7 – Apache Service Fails Due to SELinux File Context Drift

🟡 Medium   ⏱ 5–30 min  Last verified: 12 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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Alpine Linux edge — prometheus-blackbox-exporter — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — prometheus-blackbox-exporter — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.18.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — prometheus-blackbox-exporter 0.18.0-r0 Related CVEs: CVE-2020-16248 Upstream summary: Alpine community repository for vedge ships prometheus-blackbox-exporter 0.18.0-r0 which addresses CVE-2020-16248. Table of contents Symptom & Impact Environment […]

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Ubuntu 18.04 — ark — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — ark — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 January 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4482-1 Related CVEs: CVE-2020-24654 CVE-2020-16116 Upstream summary: Fabian Vogt discovered that Ark incorrectly handled symbolic links in tar archive files. An attacker could use this to construct a malicious tar […]

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