Package Management

Ubuntu 20.04 — adminer — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — adminer — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 August 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5271-1 Related CVEs: CVE-2020-35572 CVE-2021-21311 CVE-2021-29625 Upstream summary: It was discovered that Adminer did not escape data in the history parameter of the default URI. A remote attacker could possibly […]

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IBM AIX 7.2 — CVE-2021-29888 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-29888 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 6 August 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-29888, IBM Support Bulletin CVE: CVE-2021-29888 NVD summary: IBM InfoSphere Information Server 11.7 is vulnerable to cross-site request forgery which could allow an attacker to execute malicious and unauthorized actions transmitted from […]

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Arch Linux — libuv — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — libuv — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-36 Related CVEs: CVE-2021-22918 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 1.41.0-1. Fixed in: 1.41.1-1. Group: AVG-2131. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Oracle Linux 8 — nodejs:12 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:12 — security and stability fixes — required update (ELSA-2020-5499)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5499 Related CVEs: CVE-2020-7774 CVE-2020-8277 CVE-2020-15366 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 118940

Ubuntu 14.04 LTS – apt update shows NO_PUBKEY signature failures

🟠 High   ⏱ 5–30 min  Last verified: 5 August 2021 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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 […]

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How to Configure HAProxy SSL Termination on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure HAProxy SSL Termination on SLES 15

Introduction This tutorial covers How to Configure HAProxy SSL Termination 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 to date: zypper […]

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FreeBSD 13 — py36-ansible-core — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py36-ansible-core — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ansible — Ansible user credentials disclosure in ansible-connection module Related CVEs: CVE-2021-3583 CVE-2021-3620 Upstream summary: Red Hat reports: A flaw was found in Ansible Engine's ansible-connection module, where sensitive information […]

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AlmaLinux 8 — keycloak-httpd-client-install — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — keycloak-httpd-client-install — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3460 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — linux-vieb — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-vieb — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Vieb — Remote Code Execution via Visiting Untrusted URLs Upstream summary: Zhengyu Liu, Jianjia Yu, Jelmer van Arnhem report: We discovered a remote code execution (RCE) vulnerability in the latest […]

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