Linux

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-091 Related CVEs: CVE-2022-3715 Upstream summary: A flaw was found in the bash package, where a heap-buffer overflow can occur in valid parameter_transform. This issue may lead to memory problems. […]

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Debian 11 — php-cas — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — php-cas — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 March 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-5583 CVE-2014-4172 CVE-2017-1000071 CVE-2022-39369 Upstream summary: phpCAS before 1.3.2 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName […]

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Ubuntu 16.04 — traceroute — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — traceroute — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 March 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6478-1 Related CVEs: CVE-2023-46316 Upstream summary: It was discovered that Traceroute did not properly parse command line arguments. An attacker could possibly use this issue to execute arbitrary commands. Table […]

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Amazon Linux 2 — kernel-livepatch-4.14.296-222.539 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.296-222.539 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2023-096 Related CVEs: CVE-2022-3524 CVE-2022-3564 Upstream summary: A vulnerability was found in Linux Kernel. It has been declared as problematic. Affected by this vulnerability is the function ipv6_renew_options of the […]

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How to Configure Buildbot CI on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Buildbot CI on Debian 9

Introduction How to Configure Buildbot CI on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. This […]

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Oracle Linux 9 — tracker-miners — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — tracker-miners — vulnerability — patch and remediation guide (ELSA-2023-7712)

🟠 High   ⏱ 15–60 min  Last verified: 23 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7712 Related CVEs: CVE-2023-5557 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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Common Problems 114503

RHEL 9 dnf upgrade blocked by module stream conflicts

🟡 Medium   ⏱ 5–30 min  Last verified: 23 March 2023 📖 ~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 & Cross-Refs References & Further […]

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Oracle Linux 8 — gstreamer1-plugins-bad-free — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gstreamer1-plugins-bad-free — vulnerability — patch and remediation guide (ELSA-2024-3060)

🟡 Medium   ⏱ 10–30 min  Last verified: 23 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3060 Related CVEs: CVE-2023-40475 CVE-2023-40474 CVE-2023-40476 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 — vim — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — vim — vulnerability — patch and remediation guide (ELSA-2022-1552)

🟡 Medium   ⏱ 10–30 min  Last verified: 23 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1552 Related CVEs: CVE-2022-1154 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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Oracle Linux 8 — dotnet7.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dotnet7.0 — vulnerability — patch and remediation guide (ELSA-2023-7256)

🟡 Medium   ⏱ 10–30 min  Last verified: 23 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7256 Related CVEs: CVE-2023-36558 CVE-2023-36049 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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