Linux

Debian 12 — ark — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ark — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-5330 CVE-2020-16116 CVE-2020-24654 CVE-2024-57966 Upstream summary: ark before 16.12.1 might allow remote attackers to execute arbitrary code via an executable in an archive, related to associated applications. Table […]

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AlmaLinux 10 — haproxy — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — haproxy — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:21691 Related CVEs: CVE-2025-11230 Upstream summary: The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications. Security Fix(es): * haproxy: denial of service vulnerability in HAProxy mjson […]

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AlmaLinux 9 — qemu-kvm — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — qemu-kvm — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:4278 Related CVEs: CVE-2024-4467 CVE-2023-3354 CVE-2024-26327 CVE-2024-3446 CVE-2024-7409 CVE-2023-3019 CVE-2023-3255 CVE-2023-42467  +11 more Upstream summary: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8169-1 Related CVEs: CVE-2025-49844 CVE-2022-24834 CVE-2024-31449 CVE-2025-32023 CVE-2024-31228 CVE-2024-46981 CVE-2024-51741 Upstream summary: It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use […]

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

Ubuntu 20.04 — containerd-app — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7983-1 Related CVEs: CVE-2025-64329 CVE-2024-25621 CVE-2024-40635 Upstream summary: David Leadbeater discovered that containerd incorrectly set certain directory path permissions. An attacker could possibly use this issue to achieve unauthorised access […]

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Rocky Linux 10 — grub2 — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 10

Rocky Linux 10 — grub2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 10 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:4649 Related CVEs: CVE-2025-61662 Upstream summary: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The […]

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Ubuntu 24.04 — ruby-saml — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — ruby-saml — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7409-1 Related CVEs: CVE-2025-25291 CVE-2025-25292 CVE-2025-25293 CVE-2016-5697 CVE-2017-11428 CVE-2024-45409 Upstream summary: It was discovered that ruby-saml did not correctly handle XML parsing. An attacker could possibly use this issue to […]

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Ubuntu 22.04 — poppler — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — poppler — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 July 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7858-1 Related CVEs: CVE-2025-52885 CVE-2025-43718 CVE-2025-50420 CVE-2025-52886 CVE-2025-43903 CVE-2025-32364 CVE-2025-32365 CVE-2024-56378  +9 more Upstream summary: It was discovered that poppler incorrectly handled certain PDF files. An attacker could possibly use […]

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Common Problems 114119

RHEL 10 – multipathd reports path flapping and storage latency spikes – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 5 July 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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Oracle Linux 8 — php:7.4 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — php:7.4 — vulnerability — patch and remediation guide (ELSA-2026-2470)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-2470 Related CVEs: CVE-2024-11233 CVE-2024-11234 CVE-2024-8929 CVE-2025-1217 CVE-2025-1219 CVE-2025-1220 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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CHAT