Linux

AlmaLinux 8 — rpm-ostree — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — rpm-ostree — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1883 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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

Arch Linux — libjcat — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202007-6 Related CVEs: CVE-2020-10759 Upstream summary: Type: insufficient validation. Status: Fixed. Affected: 0.1.2-1. Fixed in: 0.1.3-1. Group: AVG-1185. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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SLES 15 — libZXing1 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libZXing1 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:0157-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-28021 CVE-2021-42716 CVE-2021-42715 Upstream summary: Buffer overflow vulnerability in function stbi__extend_receive in stb_image.h in stb 2.26 via a crafted JPEG file. Table of contents Symptom […]

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Oracle Linux 8 — nginx:1.20 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nginx:1.20 — vulnerability — patch and remediation guide (ELSA-2022-0323)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0323 Related CVEs: CVE-2021-23017 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Install and Configure VNC on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure VNC on Ubuntu 16.04

In this guide, we will be setting up VNC on a Ubuntu 16.04 server and connecting to it securely through an SSH tunnel. The VNC server we will be using is TightVNC, a fast and lightweight remote control package. This choice will ensure that our VNC connection will be smooth and stable even on slower internet connections.

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Debian 10 — apache2 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — apache2 — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9517 CVE-2019-10092 CVE-2020-1927 CVE-2020-35452 CVE-2021-34798 CVE-2021-44224 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Debian 10 — roundcube — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — roundcube — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-12625 CVE-2020-13964 CVE-2020-15562 CVE-2020-16145 CVE-2020-35730 CVE-2021-44025 CVE-2021-46144 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 Set Up ModSecurity WAF with Apache on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up ModSecurity WAF with Apache on RHEL 7

How to Set Up ModSecurity WAF with Apache on RHEL 7 ModSecurity is the most widely deployed open-source Web Application Firewall (WAF), and it integrates natively with Apache as a dynamic module. When paired with the OWASP Core Rule Set (CRS), ModSecurity can detect and block a broad range of web attacks including SQL injection, […]

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AlmaLinux 8 — openslp — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — openslp — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4295 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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