Linux

Debian 11 — amd64-microcode — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — amd64-microcode — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • August 23, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 August 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-5715 CVE-2019-9836 CVE-2023-20569 CVE-2023-20584 CVE-2023-20592 CVE-2023-20593 CVE-2023-31315 CVE-2023-31356  +12 more Upstream summary: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information […]

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Debian 12 — fontconfig — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — fontconfig — vulnerability — patch and remediation guide

  • August 23, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 23 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-5384 Upstream summary: fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger arbitrary free calls and consequently conduct double free attacks and execute arbitrary […]

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Ubuntu 16.04 — kvmtool — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — kvmtool — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • August 23, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 23 August 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8172-1 Related CVEs: CVE-2023-2861 CVE-2021-45464 Upstream summary: It was discovered that kvmtool did not properly manage memory under certain circumstances. A malicious guest attacker could use this issue to cause […]

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Oracle Linux 9 — conmon — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — conmon — vulnerability — patch and remediation guide (ELSA-2023-13053)

  • August 23, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-13053 Related CVEs: CVE-2023-39325 CVE-2023-44487 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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Debian 12 — nodejs — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — nodejs — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • August 23, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2330 CVE-2013-4450 CVE-2014-5256 CVE-2014-9748 CVE-2015-6764 CVE-2015-7384 CVE-2015-8027 CVE-2016-1669  +12 more Upstream summary: The Update method in src/node_http_parser.cc in Node.js before 0.6.17 and 0.7 before 0.7.8 does not properly […]

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How to Install Docker Compose on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Docker Compose on Debian 12

  • August 23, 2023
  • Linux
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Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up install docker compose on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully and the […]

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Amazon Linux 2023 — libglvnd — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libglvnd — vulnerability — patch and remediation guide

  • August 22, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2025-861 Related CVEs: CVE-2023-45924 Upstream summary: libglxproto.c in OpenGL libglvnd bb06db5a was discovered to contain a segmentation violation via the function glXGetDrawableScreen(). NOTE: this is disputed because there are no […]

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Common Problems 124687

Oracle Linux 9 – Common Problem 023 – Diagnosis and Fix

  • August 22, 2023
  • Linux
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🟢 Low   ⏱ 5–30 min  Last verified: 22 August 2023 Affected versions: Oracle Linux 9 📖 ~3 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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How to Add DNF Modules on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Add DNF Modules on CentOS Stream 9

  • August 22, 2023
  • CentOS
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Introduction Setting up add dnf modules on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Add DNF Modules on CentOS Stream 9, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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