Logging Monitoring

Ubuntu 18.04 — lua5.3 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — lua5.3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 October 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3941-1 Related CVEs: CVE-2019-6706 Upstream summary: Fady Othman discovered that Lua incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service. Table of […]

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How to Configure AppLocker on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure AppLocker on Windows Server 2019

Introduction to AppLocker AppLocker is an application whitelisting feature in Windows Server 2019 (Enterprise and later editions) that allows administrators to control which applications, scripts, installers, and DLLs are allowed to run based on configurable rules. Unlike software restriction policies (its predecessor), AppLocker is rule-based, auditable, and can be managed through Group Policy and PowerShell. […]

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Ubuntu 14.04 — irssi — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — irssi — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 October 2019 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3862-1 Related CVEs: CVE-2019-5882 CVE-2018-7050 CVE-2018-7051 CVE-2018-7052 CVE-2018-7053 CVE-2018-7054 CVE-2018-5205 CVE-2018-5206  +12 more Upstream summary: It was discovered that Irssi incorrectly handled certain inputs. An attacker could possibly use this […]

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SLES 15 — libgvnc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libgvnc — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 October 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:3125-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-5884 CVE-2017-5885 Upstream summary: gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles, which allows remote servers to execute arbitrary code via the […]

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Common Problems 117951

Ubuntu 18.04 DNS Resolution Fails Intermittently

🟡 Medium   ⏱ 5–30 min  Last verified: 25 October 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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openSUSE Tumbleweed — libsrtp1 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libsrtp1 — multiple vulnerabilities (2 CVEs) — 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-2013-2139 CVE-2015-6360 Upstream summary: Buffer overflow in srtp.c in libsrtp in srtp 1.4.5 and earlier allows remote attackers to cause a denial of service (crash) […]

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How to Use dbx Debugger on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use dbx Debugger on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use dbx debugger on ibm aix 7.1 on IBM […]

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How to Set Up Windows Server Cluster-Aware Updating (CAU) on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server Cluster-Aware Updating (CAU) on Windows Server 2019

Introduction to Cluster-Aware Updating Cluster-Aware Updating (CAU) is a Windows Server 2019 feature that automates the process of applying software updates to nodes in a Windows Server Failover Cluster while maintaining high availability. CAU orchestrates the drain-update-reboot-resume cycle for each cluster node sequentially, ensuring that the cluster remains available for workloads throughout the update process. […]

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Alpine Linux edge — podofo — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — podofo — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.9.7-r0 📖 ~4 min read  •  Source: Alpine secdb entry — podofo 0.9.7-r0 Related CVEs: CVE-2019-9199 CVE-2019-9687 CVE-2018-19532 CVE-2018-20751 CVE-2018-20797 CVE-2019-10723 CVE-2019-20093 CVE-2017-6848  +12 more Upstream summary: Alpine community repository for vedge ships podofo 0.9.7-r0 which […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 25 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: monotone — remote denial of service in default setup Upstream summary: The monotone developers report: Running "mtn ''" or "mtn ls ''" doesn't cause an internal error anymore. In monotone […]

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