Linux

Debian 12 — powerpc-utils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — powerpc-utils — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-4040 Upstream summary: snap in powerpc-utils 1.2.20 produces an archive with fstab and yaboot.conf files potentially containing cleartext passwords, and lacks a warning about reviewing this archive to […]

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

Debian 12 — libbsd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-2090 CVE-2019-20367 Upstream summary: Off-by-one vulnerability in the fgetwln function in libbsd before 0.8.2 allows attackers to have unspecified impact via unknown vectors, which trigger a heap-based buffer […]

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

Debian 12 — tnftp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1294 CVE-2014-8517 Upstream summary: The mget function in cmds.c for tnftp 20030825 allows remote FTP servers to overwrite arbitrary files via FTP responses containing file names with / […]

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Debian 11 — pacparser — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pacparser — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 November 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-25078 CVE-2023-37360 Upstream summary: A vulnerability classified as problematic was found in pacparser up to 1.3.x. Affected by this vulnerability is the function pacparser_find_proxy of the file src/pacparser.c. […]

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

Oracle Linux 9 — expat — vulnerability — patch and remediation guide (ELSA-2022-5244)

🟡 Medium   ⏱ 10–30 min  Last verified: 24 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5244 Related CVEs: CVE-2022-25313 CVE-2022-25314 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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How to Configure nftables Packet Filtering on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure nftables Packet Filtering on Debian 12

Introduction This guide explains how to Configure nftables Packet Filtering 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 the […]

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Alpine Linux 3.18 — xscreensaver — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 6.02-r0 📖 ~4 min read  •  Source: Alpine secdb entry — xscreensaver 6.02-r0 Related CVEs: CVE-2021-34557 Upstream summary: Alpine community repository for vv3.18 ships xscreensaver 6.02-r0 which addresses CVE-2021-34557. Table of contents Symptom & Impact Environment […]

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

Oracle Linux 9 — olcne — vulnerability — patch and remediation guide (ELSA-2024-12262)

🟠 High   ⏱ 15–60 min  Last verified: 24 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-12262 Related CVEs: CVE-2023-39326 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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Alpine Linux 3.18 — x11vnc — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — x11vnc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 0.9.16-r2 📖 ~4 min read  •  Source: Alpine secdb entry — x11vnc 0.9.16-r2 Related CVEs: CVE-2020-29074 Upstream summary: Alpine community repository for vv3.18 ships x11vnc 0.9.16-r2 which addresses CVE-2020-29074. Table of contents Symptom & Impact Environment […]

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How to Set Up a Node.js PM2 Process Manager on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up a Node.js PM2 Process Manager on Debian 12

Introduction This guide explains how to Set Up a Node.js PM2 Process Manager 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 […]

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