Linux

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 6.9.5-r2 📖 ~4 min read  •  Source: Alpine secdb entry — oniguruma 6.9.5-r2 Related CVEs: CVE-2020-26159 Upstream summary: Alpine main repository for vedge ships oniguruma 6.9.5-r2 which addresses CVE-2020-26159. Table of contents Symptom & Impact Environment […]

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How to Manage systemd Services on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Manage systemd Services on Debian 9

Introduction Deploying manage systemd services on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 9 […]

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Common Problems 121115

Debian 10 Kernel Upgrade Leaves Old Kernels Unmanaged

🟢 Low   ⏱ 5–30 min  Last verified: 18 April 2020 Affected versions: Debian 10 📖 ~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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Gentoo Linux — app-office/ledger — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-office/ledger — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202004-05 Related CVEs: CVE-2017-12481 CVE-2017-12482 CVE-2017-2807 CVE-2017-2808 Upstream summary: Multiple vulnerabilities have been discovered in ledger. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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How to Install GCC and Build Essential Tools on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install GCC and Build Essential Tools on Debian 10

Introduction Deploying install gcc and build essential tools on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites […]

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openSUSE Tumbleweed — python38-scikit-learn — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python38-scikit-learn — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14729-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-28975 Upstream summary: svm_predict_values in svm.cpp in Libsvm v324, as used in scikit-learn 0.23.2 and other products, allows attackers to cause a denial of service […]

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SLES 12 — libofx — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libofx — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 April 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:3007-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-9656 CVE-2017-14731 CVE-2017-2816 CVE-2017-2920 Upstream summary: An issue was discovered in LibOFX 0.9.14. There is a NULL pointer dereference in the function OFXApplication::startElement in the […]

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Arch Linux — python-html5lib — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — python-html5lib — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201612-13 Related CVEs: CVE-2016-9910 CVE-2016-9909 Upstream summary: Type: cross-site scripting. Status: Fixed. Affected: 0.9999999-2. Fixed in: 0.999999999-1. Group: AVG-100. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Install and Use Fluentd for Log Aggregation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Use Fluentd for Log Aggregation on RHEL 7

How to Install and Use Fluentd for Log Aggregation on RHEL 7 Log aggregation is a critical discipline in any production environment: raw log files scattered across dozens of servers are nearly impossible to correlate during an incident. Fluentd, distributed as the td-agent package by Treasure Data, is an open-source data collector written in Ruby […]

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