Linux

Alpine Linux 3.20 — ncurses — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — ncurses — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 6.4_p20230424-r0 📖 ~4 min read  •  Source: Alpine secdb entry — ncurses 6.4_p20230424-r0 Related CVEs: CVE-2023-29491 CVE-2022-29458 CVE-2021-39537 CVE-2018-10754 CVE-2017-16879 CVE-2017-10684 Upstream summary: Alpine main repository for vv3.20 ships ncurses 6.4_p20230424-r0 which addresses CVE-2023-29491. Table of […]

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Red Hat Enterprise Linux 10 — tar — vulnerability — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 10 — tar — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 10 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:0135 Related CVEs: CVE-2025-45582 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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Ubuntu 18.04 — gnupg2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gnupg2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 September 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7946-1 Related CVEs: CVE-2025-68973 CVE-2025-30258 CVE-2022-34903 CVE-2019-13050 CVE-2019-14855 CVE-2018-1000858 CVE-2018-12020 CVE-2018-9234 Upstream summary: It was discovered that GnuPG incorrectly handled crafted input. A remote attacker could possibly use this issue […]

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Ubuntu 20.04 — rust-openssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — rust-openssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 September 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7891-1 Related CVEs: CVE-2023-53159 CVE-2025-3416 CVE-2025-24898 Upstream summary: Matt Mastracci discovered that rust-openssl was incorrectly handling server lifetimes in certain functions. An attacker could possibly use this issue to cause […]

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openSUSE Leap 15.6 — sevctl — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — sevctl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:0152-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-3416 Upstream summary: A flaw was found in OpenSSL's handling of the properties argument in certain functions. This vulnerability can allow use-after-free exploitation, which […]

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Common Problems 113919

RHEL 10 – rpmdb corruption causes dnf commands to abort – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 September 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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Ubuntu 24.04 — libreoffice — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — libreoffice — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 September 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7504-1 Related CVEs: CVE-2025-2866 CVE-2025-1080 CVE-2024-12425 CVE-2024-12426 CVE-2024-6472 CVE-2024-5261 CVE-2024-3044 Upstream summary: Juraj Šarinay discovered that LibreOffice incorrectly handled verifying PDF signatures. A remote attacker could possibly use this issue […]

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How to Set Up UFW Firewall on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up UFW Firewall on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up set up ufw firewall on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration […]

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Amazon Linux 2 — lasso — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — lasso — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2025-3077 Related CVEs: CVE-2025-46404 CVE-2025-46705 CVE-2025-46784 CVE-2025-47151 CVE-2021-28091 Upstream summary: A denial of service vulnerability exists in the lasso_provider_verify_saml_signature functionality of Entr'ouvert Lasso 2.5.1. A specially crafted SAML response can […]

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Common Problems 127029

CentOS Stream 10 – Common Problem 157 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 16 September 2025 Affected versions: CentOS Stream 10 📖 ~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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