Security Hardening

Debian 12 — netsurf — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — netsurf — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • July 16, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 16 July 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0844 CVE-2014-3566 CVE-2015-7505 CVE-2015-7506 CVE-2015-7507 CVE-2015-7508 CVE-2024-51317 CVE-2025-29699  +1 more Upstream summary: Information-disclosure vulnerability in Netsurf through 2.8 due to a world-readable cookie jar. Table of contents Symptom […]

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openSUSE Tumbleweed — anubis — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — anubis — vulnerability — patch and remediation guide

  • July 16, 2025
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:0429-1 Related CVEs: CVE-2025-24369 Upstream summary: Anubis is a tool that allows administrators to protect bots against AI scrapers through bot-checking heuristics and a proof-of-work challenge to discourage scraping from multiple IP […]

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Ubuntu 16.04 — commons-io — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — commons-io — vulnerability — patch and remediation guide

  • July 16, 2025
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 16 July 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8191-1 Related CVEs: CVE-2024-47554 Upstream summary: It was discovered that Apache Commons IO's XmlStreamReader class could excessively consume CPU resources under certain circumstances. An attacker could possibly use this issue […]

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AlmaLinux 8 — xmlrpc-c — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — xmlrpc-c — multiple vulnerabilities (11 CVEs) — patch and remediation guide

  • July 16, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:1643 Related CVEs: CVE-2022-25235 CVE-2024-8176 CVE-2024-45491 CVE-2023-52425 CVE-2021-46143 CVE-2022-22822 CVE-2022-22823 CVE-2022-22824  +3 more Upstream summary: XML-RPC is a remote procedure call (RPC) protocol that uses XML to encode its calls and HTTP […]

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Ubuntu 22.04 — undertow — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — undertow — vulnerability — patch and remediation guide

  • July 16, 2025
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 16 July 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8144-1 Related CVEs: CVE-2025-12543 Upstream summary: It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain […]

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Ubuntu 20.04 — redis — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — redis — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 16, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 16 July 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7824-1 Related CVEs: CVE-2025-49844 CVE-2024-31228 CVE-2024-46981 CVE-2024-51741 CVE-2022-24834 CVE-2022-35977 CVE-2022-36021 CVE-2023-25155  +12 more Upstream summary: Benny Isaacs, Nir Brakha, and Sagi Tzadik discovered that Redis incorrectly handled memory when running […]

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Windows Server 2022 — KB5034766 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5034766 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5034766 • MSRC update-guide entry Related CVEs: CVE-2024-20684 CVE-2024-21357 CVE-2024-21338 CVE-2024-21340 CVE-2024-21349 CVE-2024-21350 CVE-2024-21352 CVE-2024-21354  +12 more Affected components: Windows Server 2022, 23H2 Edition (Server Core installation) Windows Server 2022 Table of […]

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

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

  • July 16, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 10 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:3297 Related CVEs: CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 CVE-2025-47913 CVE-2025-52881 CVE-2025-58183 Upstream summary: The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: […]

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

Oracle Linux 8 — tuned — vulnerability — patch and remediation guide (ELSA-2024-11161)

  • July 16, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 16 July 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-11161 Related CVEs: CVE-2024-52337 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 Harbor Container Registry on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Set Up Harbor Container Registry on Oracle Linux 10

Introduction Setting up set up harbor container registry 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 Set Up Harbor Container Registry on Oracle Linux 10, with all the commands you need, the SELinux and firewalld […]

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