Security Hardening

Rocky Linux 10 — nginx — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 10

Rocky Linux 10 — nginx — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 10 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:18063 Related CVEs: CVE-2026-42945 CVE-2026-27651 CVE-2026-27654 CVE-2026-27784 CVE-2026-32647 CVE-2026-1642 Upstream summary: nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, […]

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

Arch Linux — dropbear — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202505-9 Related CVEs: CVE-2025-47203 Upstream summary: Type: arbitrary command execution. Status: Fixed. Affected: 2025.87-1. Fixed in: 2025.88-1. Group: AVG-2874. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 13 — konversation — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — konversation — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-0129 CVE-2005-0130 CVE-2005-0131 CVE-2007-4400 CVE-2009-5050 CVE-2014-8483 CVE-2017-15923 Upstream summary: The Quick Buttons feature in Konversation 0.15 allows remote attackers to execute certain IRC commands via a channel name […]

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Debian 13 — jakarta-el-api — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — jakarta-el-api — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 July 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-28170 Upstream summary: In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid. […]

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Debian 13 — php-phpseclib — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — php-phpseclib — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-30130 CVE-2023-48795 CVE-2023-52892 CVE-2024-27354 CVE-2024-27355 CVE-2026-32935 CVE-2026-40194 CVE-2026-44167 Upstream summary: phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification. Table of contents Symptom & […]

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Debian 13 — unicon — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — unicon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-2835 Upstream summary: Multiple stack-based buffer overflows in (1) CCE_pinyin.c and (2) xl_pinyin.c in ImmModules/cce/ in unicon-imc2 3.0.4, as used by zhcon and other applications, allow local users […]

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openSUSE Tumbleweed — tiff — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — tiff — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:12265 (see also SUSE bugzilla) Related CVEs: CVE-2026-4775 CVE-2025-9900 CVE-2025-8176 CVE-2019-17546 CVE-2022-34266 CVE-2022-48281 CVE-2022-3970 CVE-2022-2519  +12 more Upstream summary: A flaw was found in the libtiff library. A remote attacker could exploit […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 5 July 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8113-1 Related CVEs: CVE-2025-61144 CVE-2025-61143 CVE-2025-8961 CVE-2025-9165 CVE-2025-9900 CVE-2025-8177 CVE-2025-8851 CVE-2025-8534  +12 more Upstream summary: It was discovered that LibTIFF did not properly handle memory when processing certain images. An […]

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Ubuntu 16.04 — linux-azure — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — linux-azure — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 July 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8267-1 Related CVEs: CVE-2024-27388 CVE-2024-46777 CVE-2024-46816 CVE-2024-49938 CVE-2024-50008 CVE-2024-50142 CVE-2025-21735 CVE-2025-37849  +12 more Upstream summary: Qualys discovered that several vulnerabilities existed in the AppArmor Linux kernel Security Module (LSM). An […]

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How to Configure LVM on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure LVM on Oracle Linux 10

Introduction Setting up configure lvm on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure LVM on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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