Logging Monitoring

Alpine Linux edge — hunspell — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — hunspell — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.7.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — hunspell 1.7.0-r1 Related CVEs: CVE-2019-16707 Upstream summary: Alpine main repository for vedge ships hunspell 1.7.0-r1 which addresses CVE-2019-16707. Table of contents Symptom & Impact Environment […]

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FreeBSD 12 — postgresql93-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — postgresql93-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgreSQL — SQL injection in pg_upgrade and pg_dump Related CVEs: CVE-2014-8161 CVE-2015-0241 CVE-2015-0242 CVE-2015-0243 CVE-2015-0244 CVE-2015-3165 CVE-2015-3166 CVE-2015-3167  +12 more Upstream summary: The PostgreSQL project reports: CVE-2018-16850: SQL injection in […]

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FreeBSD 12 — mediawiki — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mediawiki — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mediawiki — multiple vulnerabilities Related CVEs: CAN-2005-4501 CVE-2006-1498 CVE-2007-4828 CVE-2008-5249 CVE-2008-5250 CVE-2008-5252 CVE-2010-1150 CVE-2011-0047  +12 more Upstream summary: Mediawiki reports: (T355538, CVE-2024-PENDING) SECURITY: XSS in edit summary parser. (T357760, CVE-2024-PENDING) […]

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openSUSE Tumbleweed — ksh — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ksh — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:2756-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-14868 Upstream summary: In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw […]

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How to Use tmux for Terminal Multiplexing on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Use tmux for Terminal Multiplexing on RHEL 7

How to Use tmux for Terminal Multiplexing on RHEL 7 Every Linux administrator has experienced the frustration of losing a long-running process because an SSH connection dropped. tmux (terminal multiplexer) solves this problem by running your terminal sessions inside a persistent server process that survives disconnections. Beyond persistence, tmux allows you to split a single […]

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Common Problems 114916

RHEL 8 firewalld Zone Mismatch Blocks Application Port

🟡 Medium   ⏱ 5–30 min  Last verified: 9 November 2019 📖 ~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 12 — poppler — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — poppler — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: poppler — multiple denial of service issues Related CVEs: CVE-2007-3387 CVE-2007-4352 CVE-2007-5392 CVE-2007-5393 CVE-2008-2950 CVE-2017-9775 CVE-2017-9865 Upstream summary: Poppler developers report: Poppler is prone to a stack-based buffer-overflow vulnerability. Successful […]

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Common Problems 113591

Windows Server 2012 R2 — Cluster Service (ClusSvc) quorum startup failure — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 November 2019 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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FreeBSD 12 — php4-shmop — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php4-shmop — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2007-0905 CVE-2007-0906 CVE-2007-0907 CVE-2007-0908 CVE-2007-0909 CVE-2007-0910 CVE-2007-0988 CVE-2007-1001 Upstream summary: The PHP development team reports: Security Enhancements and Fixes in PHP 5.2.2 and PHP […]

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Common Problems 112571

Windows Server 2019 – Storage Replica asynchronous RPO spikes during backup windows – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 9 November 2019 Affected versions: Windows Server 2019 📖 ~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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