Linux

Oracle Linux 8 — postgresql:16 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — postgresql:16 — vulnerability — patch and remediation guide (ELSA-2026-4063)

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-4063 Related CVEs: CVE-2026-2004 CVE-2026-2005 CVE-2026-2006 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 9 — kernel-rt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 9

Red Hat Enterprise Linux 9 — kernel-rt — multiple vulnerabilities (20 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-2026:19875 Related CVEs: CVE-2025-21999 CVE-2025-71238 CVE-2026-23243 CVE-2026-23401 CVE-2026-31532 CVE-2026-46300 CVE-2026-46333 CVE-2026-43284  +12 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Oracle Linux 9 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — xorg-x11-server-Xwayland — vulnerability — patch and remediation guide (ELSA-2025-20960)

🟡 Medium   ⏱ 10–30 min  Last verified: 31 January 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20960 Related CVEs: CVE-2025-62229 CVE-2025-62230 CVE-2025-62231 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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CentOS Stream 9 — yelp — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — yelp — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:7430 Related CVEs: CVE-2025-3155 Upstream summary: Yelp is the help browser for the GNOME desktop. It is designed to help you browse all the documentation on your system in one central […]

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CentOS Stream 9 — java-21-openjdk — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — java-21-openjdk — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:9689 Related CVEs: CVE-2026-22007 CVE-2026-22013 CVE-2026-22016 CVE-2026-22018 CVE-2026-22021 CVE-2026-23865 CVE-2026-34268 CVE-2026-34282  +12 more Upstream summary: The OpenJDK 21 packages provide the OpenJDK 21 Java Runtime Environment and the OpenJDK 21 Java […]

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SLES 15 — nscd — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — nscd — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:1334 (see also SUSE bugzilla) Related CVEs: CVE-2026-0861 CVE-2025-4802 CVE-2024-33599 CVE-2024-33600 CVE-2024-2961 CVE-2023-6246 CVE-2023-6779 CVE-2023-6780  +12 more Upstream summary: Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, […]

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

Ubuntu 18.04 — linux-oracle — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8281-1 Related CVEs: CVE-2026-31431 CVE-2026-31504 CVE-2026-43033 CVE-2026-43077 CVE-2026-43078 CVE-2024-27388 CVE-2024-46816 CVE-2024-49938  +12 more Upstream summary: It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic […]

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

Ubuntu 24.04 — linux — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8278-1 Related CVEs: CVE-2024-50004 CVE-2024-58096 CVE-2024-58097 CVE-2025-37926 CVE-2025-38201 CVE-2025-38591 CVE-2025-40039 CVE-2025-40082  +12 more Upstream summary: It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic […]

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Amazon Linux 2 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2318 Related CVEs: CVE-2019-12524 CVE-2019-12529 CVE-2019-18677 CVE-2019-18678 CVE-2019-18860 CVE-2021-28116 CVE-2023-46847 CVE-2026-32748  +12 more Upstream summary: An issue was discovered in Squid through 4.7. When handling requests from users, Squid checks […]

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Common Problems 114095

RHEL 10 – HAProxy fails to start after package upgrade due to config deprecations

🟠 High   ⏱ 5–30 min  Last verified: 30 January 2026 Affected versions: RHEL 10 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 & […]

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