Logging Monitoring

Oracle Linux 8 — perl:5.26 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — perl:5.26 — security and stability fixes — required update (ELSA-2021-1678)

🟡 Medium   ⏱ 10–30 min  Last verified: 20 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1678 Related CVEs: CVE-2020-10878 CVE-2020-10543 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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FreeBSD 12 — py38-fail2ban — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py38-fail2ban — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 June 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: fail2ban — possible RCE vulnerability in mailing action using mailutils Related CVEs: CVE-2021-32749 Upstream summary: Jakub Żoczek reports: Command mail from mailutils package used in mail actions like mail-whois can […]

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Common Problems 120702

Debian 11 – cloud-init Datasource Timeout Delays Boot – Fast Metadata Recovery

🟡 Medium   ⏱ 5–30 min  Last verified: 20 June 2022 Affected versions: Debian 11 📖 ~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 & […]

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How to Perform a Network Install via NIM on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Perform a Network Install via NIM on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to perform a network install via nim on IBM AIX […]

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AlmaLinux 8 — numatop — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — numatop — 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-2022:2073 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 — de-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — de-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 June 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: openoffice — DOC document heap overflow vulnerability Related CVEs: CVE-2004-0752 CVE-2005-0941 Upstream summary: AD-LAB reports that a heap-based buffer overflow vulnerability exists in OpenOffice's handling of DOC documents. When reading […]

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Common Problems 117031

Ubuntu 22.04 LTS – ext4 filesystem errors force read-only remount – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 June 2022 Affected versions: Ubuntu 22.04 LTS 📖 ~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 […]

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FreeBSD 13 — tk-threads — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — tk-threads — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 June 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: tcl/tk — buffer overflow in ReadImage function Related CVEs: CVE-2007-5137 Upstream summary: A Buffer overflow in the ReadImage function in generic/tkImgGIF.c in Tcl/Tk, allows remote attackers to execute arbitrary code […]

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Debian 11 — nettle — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — nettle — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8803 CVE-2015-8804 CVE-2015-8805 CVE-2016-6489 CVE-2018-16869 CVE-2021-20305 CVE-2021-3580 Upstream summary: The ecc_256_modp function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output […]

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