Linux

Oracle Linux 9 — gdk-pixbuf2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — gdk-pixbuf2 — vulnerability — patch and remediation guide (ELSA-2023-2216)

🟡 Medium   ⏱ 10–30 min  Last verified: 4 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2216 Related CVEs: CVE-2021-46829 CVE-2021-44648 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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Alpine Linux 3.18 — traceroute — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — traceroute — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.1.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — traceroute 2.1.3-r0 Related CVEs: CVE-2023-46316 Upstream summary: Alpine community repository for vv3.18 ships traceroute 2.1.3-r0 which addresses CVE-2023-46316. Table of contents Symptom & Impact Environment […]

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

How to Install PostgreSQL on Debian 12

Introduction How to Install PostgreSQL on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 12. This tutorial […]

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Oracle Linux 9 — Image Builder security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Image Builder security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-2204)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2204 Related CVEs: CVE-2022-41715 CVE-2022-27664 CVE-2022-2879 CVE-2022-2880 CVE-2022-41717 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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How to Tune System Performance with tuned on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Tune System Performance with tuned on CentOS Stream 9

Introduction This tutorial demonstrates how to Tune System Performance with tuned on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with […]

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Common Problems 120009

Debian 12: Docker service fails after kernel update

🟠 High   ⏱ 5–30 min  Last verified: 3 November 2023 Affected versions: Debian 12 📖 ~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 & […]

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Debian 12 — libguestfs — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libguestfs — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-4127 CVE-2012-2690 CVE-2013-2124 CVE-2013-4419 CVE-2022-2211 Upstream summary: The Linux kernel before 3.2.2 does not properly restrict SG_IO ioctl calls, which allows local users to bypass intended restrictions on […]

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

Debian 11 — hotspot — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 November 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-28144 Upstream summary: KDAB Hotspot 1.3.x and 1.4.x through 1.4.1, in a non-default configuration, allows privilege escalation because of race conditions involving symlinks and elevate_perf_privileges.sh chown calls. Table […]

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How to Set Up S3FS FUSE Mount on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up S3FS FUSE Mount on Debian 12

Introduction This guide explains how to Set Up S3FS FUSE Mount on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with […]

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

Debian 12 — geomview — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-17530 Upstream summary: common/help.c in Geomview 1.9.5 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct […]

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