Logging Monitoring

Ubuntu 18.04 — xdg-utils — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — xdg-utils — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 July 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4649-2 Related CVEs: https://launchpad.net/bugs/1909941 CVE-2020-27748 CVE-2017-18266 Upstream summary: USN-4649-1 fixed vulnerabilities in xdg-utils. That update caused a regression by removing the –attach functionality in thunderbird and others applications. This update […]

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AlmaLinux 8 — stress-ng — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — stress-ng — 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-2022:1865 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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Oracle Linux 8 — Limitations of the LVM dm-writecache Caching Method — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Limitations of the LVM dm-writecache Caching Method

🟠 High   ⏱ 5–30 min  Last verified: 3 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 31203340 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 […]

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Common Problems 119027

Apache2 Fails to Start Because Port 80 Is Already in Use on Ubuntu 14.04

🟡 Medium   ⏱ 5–30 min  Last verified: 3 July 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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Common Problems 118122

Ubuntu 18.04 LTS Snap services fail after corrupted snapd state

🟡 Medium   ⏱ 5–30 min  Last verified: 3 July 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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FreeBSD 13 — py25-django-devel — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py25-django-devel — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: django — multiple vulnerabilities Related CVEs: CVE-2008-2302 CVE-2009-3695 CVE-2010-3082 Upstream summary: The Django project reports: Please reference CVE/URL list for details Table of contents Symptom & Impact Environment & Reproduction […]

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openSUSE Tumbleweed — cfengine — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — cfengine — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2021-36756 CVE-2021-38379 Upstream summary: CFEngine Enterprise 3.15.0 through 3.15.4 has Missing SSL Certificate Validation. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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FreeBSD 13 — pear-twig-twig — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pear-twig-twig — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pear-twig — remote code execution Related CVEs: CVE-2015-7809 Upstream summary: Fabien Potencier reports: End users can craft valid Twig code that allows them to execute arbitrary code (RCEs) via the […]

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FreeBSD 13 — pngcrush — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pngcrush — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pngcrush — libpng Uninitialised Pointer Arrays Vulnerability Related CVEs: CVE-2009-0040 Upstream summary: Secunia reports: A vulnerability has been reported in Pngcrush, which can be exploited by malicious people to potentially […]

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