Package Management

Amazon Linux 2 — libbpf — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libbpf — 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 ALAS2-2022-1889 Related CVEs: CVE-2022-3534 CVE-2022-3606 Upstream summary: A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component […]

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Debian 10 — ecdsautils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — ecdsautils — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 June 2022 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-24884 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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How to Set Up VLAN Tagging on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up VLAN Tagging on Debian 11

Introduction This guide explains how to Set Up VLAN Tagging on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install with the […]

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FreeBSD 12 — subversion-lts — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — subversion-lts — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 June 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Subversion — Multiple vulnerabilities in server code Related CVEs: CVE-2021-28544 CVE-2022-24070 Upstream summary: Subversion project reports: Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization […]

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Ubuntu 18.04 — graphicsmagick — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — graphicsmagick — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5974-1 Related CVEs: CVE-2018-20184 CVE-2018-20189 CVE-2018-5685 CVE-2018-9018 CVE-2019-11006 CVE-2020-12672 CVE-2022-1270 CVE-2019-12921  +12 more Upstream summary: It was discovered that GraphicsMagick was not properly performing bounds checks when processing TGA image […]

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Arch Linux — hivex — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — hivex — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202105-28 Related CVEs: CVE-2021-3504 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.3.19-4. Fixed in: 1.3.20-1. Group: AVG-1907. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Ubuntu 18.04 — flatpak — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — flatpak — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5191-1 Related CVEs: CVE-2021-41133 CVE-2021-21381 CVE-2021-21261 Upstream summary: It was discovered that Flatpak incorrectly handled certain AF_UNIX sockets. An attacker could use this to specially craft a Flatpak application that […]

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CentOS Stream 9 — gcc — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — gcc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2022 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:1346 Related CVEs: CVE-2020-11023 Upstream summary: The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries. Security Fix(es): * […]

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Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2021-3499)

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3499 Related CVEs: CVE-2021-38493 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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Arch Linux — lynx — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lynx — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202108-9 Related CVEs: CVE-2021-38165 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 2.8.9-3. Fixed in: 2.8.9-4. Group: AVG-2261. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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