chris

Gentoo Linux — media-sound/mumble — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-sound/mumble — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202105-13 Related CVEs: CVE-2021-27229 Upstream summary: Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution […]

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

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2021-3155)

🟠 High   ⏱ 15–60 min  Last verified: 20 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3155 Related CVEs: CVE-2021-29989 CVE-2021-29985 CVE-2021-29984 CVE-2021-29986 CVE-2021-29980 CVE-2021-29988 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How To Secure Nginx with NAXSI on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Secure Nginx with NAXSI on Ubuntu 16.04

You can greatly increase the security of your Nginx server by using a module like NAXSI. NAXSI (Nginx Anti XSS & SQL Injection) is a free, third-party Nginx module that provides web application firewall features. In this tutorial, you will use NAXSI to secure Nginx on your Ubuntu 16.04 server. By the end of this tutorial, you will know what kinds of attacks NAXSI can block and how to configure NAXSI rules.

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2021-9404)

🟠 High   ⏱ 15–60 min  Last verified: 20 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9404 Related CVEs: CVE-2020-14304 CVE-2021-3564 CVE-2020-24588 CVE-2020-26147 CVE-2020-26141 CVE-2020-24586 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Configure Volume Shadow Copy Service (VSS) on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Volume Shadow Copy Service (VSS) on Windows Server 2019

Introduction to Volume Shadow Copy Service on Windows Server 2019 The Volume Shadow Copy Service (VSS) is a core Windows infrastructure component that enables the creation of consistent point-in-time snapshots of volumes, even while applications are actively writing to disk. VSS coordinates with VSS requestors (backup applications), VSS providers (storage drivers or hardware), and VSS […]

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

Arch Linux — musl — 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-201710-28 Related CVEs: CVE-2017-15650 CVE-2020-28928 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.1.16-2. Fixed in: 1.1.17-1. Group: AVG-457. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Oracle Linux 8 — Podman Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Podman Issues (OL8-ISSUES-PODMAN)

🟠 High   ⏱ 5–30 min  Last verified: 19 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNT-ol8-issues-podman 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 […]

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FreeBSD 12 — libpano — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — libpano — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 June 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libpano13 — arbitrary memory access through format string vulnerability Related CVEs: CVE-2021-20307 Upstream summary: libpano13 developers reports: Fix crash and security issue caused by malformed filename prefix Table of contents […]

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FreeBSD 13 — py310-psutil — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py310-psutil — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-psutil — double free vulnerability Related CVEs: CVE-2019-18874 Upstream summary: ret2libc reports: psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a […]

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