Linux

How to Install Kibana on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Kibana on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install kibana both straightforward and auditable. This tutorial covers the complete procedure for how to Install Kibana on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: a registered […]

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

Ubuntu 24.04 — dnsmasq — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 July 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8268-1 Related CVEs: CVE-2026-4890 CVE-2026-4891 CVE-2026-2291 CVE-2026-4892 CVE-2026-5172 CVE-2026-4893 Upstream summary: Andrew S. Fasano, Royce M, and Hugo Martinez Ray discovered that Dnsmasq did not allocate the necessary space to […]

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Ubuntu 24.04 — slurm-wlm — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — slurm-wlm — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 July 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8236-1 Related CVEs: CVE-2023-49933 CVE-2023-41914 CVE-2025-43904 CVE-2023-49937 CVE-2023-49938 Upstream summary: It was discovered that Slurm did not correctly handle certain file system operations. An attacker could possibly use this issue […]

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Red Hat Enterprise Linux 9 — valkey — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 9

Red Hat Enterprise Linux 9 — valkey — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 9 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:3507 Related CVEs: CVE-2025-67733 CVE-2026-21863 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Ubuntu 24.04 — openjdk-21 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — openjdk-21 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 July 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8002-1 Related CVEs: CVE-2026-21945 CVE-2026-21933 CVE-2026-21932 CVE-2026-21925 CVE-2025-53057 CVE-2025-53066 CVE-2025-61748 CVE-2025-30754  +12 more Upstream summary: It was discovered that the RMI component of OpenJDK 21 would establish RMI TCP endpoint […]

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

Ubuntu 22.04 — sed — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 July 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8229-1 Related CVEs: CVE-2026-5958 Upstream summary: Michał Majchrowicz and Marcin Wyczechowski discovered that sed incorrectly handled symbolic links when performing in-place edits. A local attacker could possibly use this issue […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:0439-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-58181 Upstream summary: SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 13 July 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8022-1 Related CVEs: CVE-2026-25210 CVE-2026-24515 CVE-2025-59375 CVE-2024-50602 CVE-2024-45490 CVE-2024-45491 CVE-2024-45492 CVE-2022-43680  +12 more Upstream summary: It was discovered that Expat incorrectly handled memory when parsing certain XML files. An attacker […]

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Oracle Linux 10 — wireshark — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — wireshark — vulnerability — patch and remediation guide (ELSA-2026-9666)

🟡 Medium   ⏱ 10–30 min  Last verified: 13 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-9666 Related CVEs: CVE-2026-3201 CVE-2026-3203 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Common Problems 116104

Ubuntu 26.04 LTS – GNOME login loop after NVIDIA driver update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 July 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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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CHAT