Linux

Ubuntu 20.04 — gnutls28 — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — gnutls28 — multiple vulnerabilities (16 CVEs) — patch and remediation guide

  • May 3, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 May 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7742-1 Related CVEs: CVE-2025-32988 CVE-2025-32990 CVE-2025-6395 CVE-2024-12243 CVE-2024-28834 CVE-2024-28835 CVE-2024-0553 CVE-2024-0567  +8 more Upstream summary: It was discovered that GnuTLS incorrectly handled exporting Subject Alternative Name (SAN) entries containing an […]

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Oracle Linux 9 — tomcat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — tomcat — vulnerability — patch and remediation guide (ELSA-2024-5693)

  • May 3, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 May 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-5693 Related CVEs: CVE-2024-34750 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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Alpine Linux 3.19 — kdeconnect — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — kdeconnect — vulnerability — patch and remediation guide

  • May 3, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 20.08.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — kdeconnect 20.08.2-r0 Related CVEs: CVE-2020-26164 Upstream summary: Alpine community repository for vv3.19 ships kdeconnect 20.08.2-r0 which addresses CVE-2020-26164. Table of contents Symptom & Impact Environment […]

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Oracle Linux 9 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2024-4583)

  • May 3, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 May 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-4583 Related CVEs: CVE-2021-47548 CVE-2023-52638 CVE-2024-27397 CVE-2024-35958 CVE-2024-36270 CVE-2024-38586 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — edk2:20220126gitbb1bba3d77 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — edk2:20220126gitbb1bba3d77 — vulnerability — patch and remediation guide (ELSA-2024-11185)

  • May 3, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-11185 Related CVEs: CVE-2024-38796 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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openSUSE Leap 15.6 — gdcm — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

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

  • May 3, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:0167-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-22373 Upstream summary: An out-of-bounds write vulnerability exists in the JPEG2000Codec::DecodeByStreamsCommon functionality of Mathieu Malaterre Grassroot DICOM 3.0.23. A specially crafted DICOM file can […]

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SLES 12 — python-Werkzeug — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — python-Werkzeug — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • May 3, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 May 2025 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:1572-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-34069 CVE-2023-25577 CVE-2019-14806 Upstream summary: Werkzeug is a comprehensive WSGI web application library. The debugger in affected versions of Werkzeug can allow an attacker to […]

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Oracle Linux 8 — .NET 8.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 8.0 — vulnerability — patch and remediation guide (ELSA-2024-3345)

  • May 3, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 3 May 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3345 Related CVEs: CVE-2024-30045 CVE-2024-30046 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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Red Hat Enterprise Linux 7 — 389-ds-base — vulnerability — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 7 — 389-ds-base — vulnerability — patch and remediation guide

  • May 3, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 7 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:6220 Related CVEs: CVE-2025-14905 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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How to Set Up Pacemaker and Corosync for High Availability on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Pacemaker and Corosync for High Availability on RHEL 9

  • May 2, 2025
  • Linux
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Pacemaker is a high-availability cluster resource manager that, combined with the Corosync messaging layer, enables automatic failover of services between cluster nodes. When a node or service fails, Pacemaker detects the failure and restarts the affected resources on a surviving node, minimising downtime. This tutorial builds a two-node active/passive HA cluster on RHEL 9, configuring […]

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