Logging Monitoring

Debian 10 — dnsmasq — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — dnsmasq — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 March 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-25681 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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openSUSE Tumbleweed — argyllcms — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — argyllcms — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2012-1616 Upstream summary: Use-after-free vulnerability in icclib before 2.13, as used by Argyll CMS before 1.4 and possibly other programs, allows remote attackers to cause […]

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Oracle Linux 8 — tcpdump — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — tcpdump — vulnerability — patch and remediation guide (ELSA-2020-1604)

🟢 Low   ⏱ 5–15 min  Last verified: 22 March 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1604 Related CVEs: CVE-2018-19519 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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FreeBSD 12 — xwayland — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

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

🟠 High   ⏱ 15–60 min  Last verified: 22 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xwayland — Multiple vulnerabilities Related CVEs: CVE-2017-12176 CVE-2017-12177 CVE-2017-12178 CVE-2017-12179 CVE-2017-12180 CVE-2017-12181 CVE-2017-12182 CVE-2017-12183  +12 more Upstream summary: X.Org project reports: Multiple issues have been found in the X server […]

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How to Use Docker Secrets and Environment Variables Securely on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Use Docker Secrets and Environment Variables Securely on RHEL 7

How to Use Docker Secrets and Environment Variables Securely on RHEL 7 One of the most common security mistakes in containerised deployments is embedding sensitive values — database passwords, API keys, TLS certificates — directly inside Dockerfiles or baking them into image layers. Because Docker images are built as a stack of read-only layers, anything […]

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Arch Linux — openvpn — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — openvpn — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201706-27 Related CVEs: CVE-2017-7521 CVE-2017-7520 CVE-2017-7512 CVE-2017-7508 CVE-2017-7479 CVE-2017-7478 CVE-2020-11810 CVE-2017-12166 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 2.4.2-1. Fixed in: 2.4.3-1. Group: AVG-318. Table of contents Symptom & […]

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FreeBSD 12 — junkbuster — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — junkbuster — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: junkbuster — heap corruption vulnerability and configuration modification vulnerability Related CVEs: CVE-2005-1108 CVE-2005-1109 Upstream summary: A Debian advisory reports: James Ranson discovered that an attacker can modify the referrer setting […]

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FreeBSD 12 — apache+mod_ssl+ipv — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache+mod_ssl+ipv — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Apache 1.3 — mod_proxy reverse proxy exposure Related CVEs: CVE-2004-0700 CVE-2004-0885 CVE-2004-0940 CVE-2005-2088 CVE-2005-3352 CVE-2006-3747 CVE-2011-3368 Upstream summary: Apache HTTP server project reports: An exposure was found when using mod_proxy […]

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Arch Linux — pigeonhole — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — pigeonhole — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201908-19 Related CVEs: CVE-2019-11500 CVE-2020-28200 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 0.5.7.1-1. Fixed in: 0.5.7.2-1. Group: AVG-1027. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Common Problems 118081

Ubuntu 18.04 Apache Service Fails with Config Test Error

🟡 Medium   ⏱ 5–30 min  Last verified: 21 March 2020 📖 ~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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