Linux

Alpine Linux 3.20 — lz4 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — lz4 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 1.9.3-r1 📖 ~4 min read  •  Source: Alpine secdb entry — lz4 1.9.3-r1 Related CVEs: CVE-2021-3520 CVE-2019-17543 Upstream summary: Alpine main repository for vv3.20 ships lz4 1.9.3-r1 which addresses CVE-2021-3520. Table of contents Symptom & Impact […]

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Debian 12 — golang-gvisor-gvisor — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — golang-gvisor-gvisor — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 October 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-7258 CVE-2025-2713 Upstream summary: A denial of service exists in Gvisor Sandbox where a bug in reference counting code in mount point tracking could lead to a panic, […]

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Common Problems 119624

Debian 13 – Docker or containerd fails after cgroup v2 migration

🟠 High   ⏱ 5–30 min  Last verified: 19 October 2025 Affected versions: Debian 13 Debian 13 (Trixie) Debian 13.x 📖 ~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 […]

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openSUSE Tumbleweed — python311-pdfminer.six — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python311-pdfminer.six — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2025-64512 Upstream summary: Pdfminer.six is a community maintained fork of the original PDFMiner, a tool for extracting information from PDF documents. Prior to version 20251107, […]

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Debian 13 — cryptsetup — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — cryptsetup — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-4484 CVE-2020-14382 CVE-2021-4122 Upstream summary: The Debian initrd script for the cryptsetup package 2:1.7.3-2 and earlier allows physically proximate attackers to gain shell access via many log in […]

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Ubuntu 24.04 — vte2.91 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — vte2.91 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 October 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6833-1 Related CVEs: CVE-2024-37535 Upstream summary: Siddharth Dushantha discovered that VTE incorrectly handled large window resize escape sequences. An attacker could possibly use this issue to consume resources, leading to […]

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Ubuntu 24.04 — gnome-shell — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — gnome-shell — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 October 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6963-1 Related CVEs: CVE-2024-36472 Upstream summary: It was discovered that GNOME Shell incorrectly opened the portal helper automatically when detecting a captive network portal. A remote attacker could possibly use […]

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Ubuntu 16.04 — net-snmp — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — net-snmp — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 October 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7944-1 Related CVEs: CVE-2025-68615 CVE-2022-24805 CVE-2022-24806 CVE-2022-24807 CVE-2022-24808 CVE-2022-24809 CVE-2022-24810 CVE-2022-44792  +5 more Upstream summary: Bahae Bahrini discovered that Net-SNMP could be made to write out of bounds. If a […]

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How to Configure GitHub Actions Self-Hosted Runner on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure GitHub Actions Self-Hosted Runner on Debian 13

Introduction This guide explains how to Configure GitHub Actions Self-Hosted Runner on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with […]

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Oracle Linux 10 — buildah — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — buildah — vulnerability — patch and remediation guide (ELSA-2025-7459)

🟡 Medium   ⏱ 10–30 min  Last verified: 19 October 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-7459 Related CVEs: CVE-2025-27144 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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