Fix Prevention

FreeBSD 12 — pound — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — pound — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pound remotely exploitable vulnerability Upstream summary: An unknown remotely exploitable vulnerability was disclosed. Robert Segall writes: a security vulnerability was brought to my attention (many thanks to Akira Higuchi). Everyone […]

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FreeBSD 12 — ripmime — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ripmime — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ripMIME — decoding bug allowing content filter bypass Upstream summary: ripMIME may prematurely terminate decoding Base64 encoded messages when it encounters multiple blank lines or other non-standard Base64 constructs. Virus […]

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How to Configure Task Scheduler on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Task Scheduler on Windows Server 2012 R2

How to Configure Task Scheduler on Windows Server 2012 R2 Task Scheduler is a core component of Windows Server 2012 R2 that enables automated execution of programs, scripts, and administrative tasks at specified times, in response to system events, or on a recurring schedule. For server administrators, Task Scheduler is the primary mechanism for automating […]

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How to Set Up Windows Remote Management for Ansible Control on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Remote Management for Ansible Control on Windows Server 2019

Introduction: Ansible and Windows Server 2019 Ansible is an agentless automation platform that manages Windows Server 2019 nodes via Windows Remote Management (WinRM) rather than SSH. The Ansible control node (a Linux machine) pushes tasks to Windows targets over encrypted WinRM connections, running PowerShell under the covers. Properly configuring WinRM on Windows Server 2019 with […]

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FreeBSD 12 — lighttpd — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — lighttpd — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 18 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: lighttpd – use-after-free vulnerabilities Related CVEs: CVE-2005-0453 CVE-2007-1869 CVE-2007-1870 CVE-2007-3947 CVE-2007-3948 CVE-2007-3949 CVE-2007-3950 CVE-2007-4727  +11 more Upstream summary: Lighttpd Project reports: Security fixes for Lighttpd: security: process headers after combining […]

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Ubuntu 16.04 — patch — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — patch — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 July 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4071-1 Related CVEs: CVE-2019-13636 CVE-2019-13638 CVE-2016-10713 CVE-2018-1000156 CVE-2018-6951 Upstream summary: It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information. […]

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SLES 15 — cryptctl — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — cryptctl — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 18 July 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:2136-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18906 Upstream summary: A Improper Authentication vulnerability in cryptctl of SUSE Linux Enterprise Server for SAP 12-SP5, SUSE Manager Server 4.0 allows attackers with access […]

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Common Problems 118540

Ubuntu 16.04 DNS resolution intermittently fails

🟡 Medium   ⏱ 5–30 min  Last verified: 17 July 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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Common Problems 117968

Ubuntu 18.04 LTS – UFW blocks required application ports after policy tighten – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 July 2019 Affected versions: Ubuntu 18.04 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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openSUSE Tumbleweed — radvd — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — radvd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2011-3602 Upstream summary: Directory traversal vulnerability in device-linux.c in the router advertisement daemon (radvd) before 1.8.2 allows local users to overwrite arbitrary files, and remote […]

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