Linux

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2025-20553)

  • March 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 5 March 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20553 Related CVEs: CVE-2022-48773 CVE-2022-48828 CVE-2022-48829 CVE-2024-57996 CVE-2025-37752 CVE-2025-37958 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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CentOS Stream 9 — python-urllib3 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — python-urllib3 — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • March 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 5 March 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:1087 Related CVEs: CVE-2025-66418 CVE-2025-66471 CVE-2026-21441 CVE-2024-37891 CVE-2023-43804 CVE-2023-45803 Upstream summary: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and […]

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CentOS Stream 9 — iperf3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — iperf3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • March 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 5 March 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:0161 Related CVEs: CVE-2024-53580 CVE-2023-38403 CVE-2025-54349 CVE-2023-7250 CVE-2024-26306 Upstream summary: Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay […]

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CentOS Stream 10 — go-rpm-macros — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — go-rpm-macros — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • March 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 5 March 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:8840 Related CVEs: CVE-2026-25679 CVE-2025-61726 Upstream summary: This package provides build-stage rpm automation to simplify the creation of Go language (golang) packages. It does not need to be included in the […]

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Red Hat Enterprise Linux 8 — libpng15 — vulnerability — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 8 — libpng15 — vulnerability — patch and remediation guide

  • March 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 8 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:6469 Related CVEs: CVE-2026-25646 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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SLES 12 — libslurm36 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libslurm36 — vulnerability — patch and remediation guide

  • March 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 5 March 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:01751-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-43904 Upstream summary: In SchedMD Slurm before 24.11.5, 24.05.8, and 23.11.11, the accounting system can allow a Coordinator to promote a user to Administrator. Table […]

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Fedora 42 — krb5 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — krb5 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • March 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-6c99aaa6d3 Related CVEs: CVE-2026-40355 CVE-2026-40356 Upstream summary: – Fix NegoEx parsing vulnerabilities (CVE-2026-40355, CVE-2026-40356) Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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Common Problems 113958

RHEL 10 Chronyd Time Drift Causes Kerberos Authentication Failures

  • March 4, 2026
  • Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 4 March 2026 Affected versions: RHEL 10 📖 ~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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AlmaLinux 10 — ruby — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — ruby — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • March 4, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:18065 Related CVEs: CVE-2026-41316 CVE-2025-24294 CVE-2025-58767 CVE-2025-61594 CVE-2025-25186 CVE-2025-27219 CVE-2025-27221 Upstream summary: Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management […]

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AlmaLinux 9 — galera — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — galera — multiple vulnerabilities (17 CVEs) — patch and remediation guide

  • March 4, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:0247 Related CVEs: CVE-2023-52969 CVE-2023-52970 CVE-2023-52971 CVE-2025-13699 CVE-2025-21490 CVE-2025-30693 CVE-2025-30722 CVE-2022-32081  +9 more Upstream summary: MariaDB is a multi-user, multi-threaded SQL database server that is binary compatible with MySQL. Security Fix(es): * […]

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