Linux

Oracle Linux 8 — ruby:2.5 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ruby:2.5 — vulnerability — patch and remediation guide (ELSA-2022-0672)

🟡 Medium   ⏱ 10–30 min  Last verified: 4 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0672 Related CVEs: CVE-2021-31810 CVE-2021-31799 CVE-2021-32066 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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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-2021-2883)

🟠 High   ⏱ 15–60 min  Last verified: 4 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2883 Related CVEs: CVE-2021-29969 CVE-2021-29976 CVE-2021-30547 CVE-2021-29970 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Arch Linux — openexr — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — openexr — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-14 Related CVEs: CVE-2021-3598 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 3.0.4-1. Fixed in: 3.0.5-1. Group: AVG-2071. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Configure Apache Virtual Hosts on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Apache Virtual Hosts on RHEL 7

How to Configure Apache Virtual Hosts on RHEL 7 Apache virtual hosts allow a single Apache HTTP Server instance to serve multiple websites on the same server, distinguishing between sites based on the incoming domain name (name-based virtual hosting) or IP address. This is the standard approach for hosting multiple websites on a shared server. […]

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AlmaLinux 8 — chrome-gnome-shell — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — chrome-gnome-shell — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:1586 Related CVEs: CVE-2019-13012 CVE-2020-13543 CVE-2020-13584 CVE-2020-16125 CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2021-1817  +4 more Upstream summary: GNOME is the default desktop environment of AlmaLinux. The following packages have been upgraded to a later […]

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Oracle Linux 8 — Graphical Installation Program Does Not Display the Reserved Memory That's Manually Set For Kdump — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Graphical Installation Program Does Not Display the Reserved Memory That’s Manually Set For Kdump

🟠 High   ⏱ 5–30 min  Last verified: 3 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 31133286 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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Rocky Linux 8 — mingw-sqlite — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — mingw-sqlite — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2021:1968 Related CVEs: CVE-2019-16168 CVE-2020-13434 CVE-2020-13630 CVE-2020-13631 CVE-2020-13632 Upstream summary: MinGW is a free and open source software development environment to create Microsoft Windows applications. The following packages have been […]

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Debian 11 — hcxtools — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — hcxtools — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-32286 Upstream summary: An issue was discovered in hcxtools through 6.1.6. A global-buffer-overflow exists in the function pcapngoptionwalk located in hcxpcapngtool.c. It allows an attacker to cause code […]

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