Security Hardening

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50112)

• March 12, 2026
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 12 March 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50112 Related CVEs: CVE-2018-1000204 CVE-2025-38234 CVE-2025-38276 CVE-2025-38357 CVE-2025-40034 CVE-2025-40075 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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FreeBSD 15 — rt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

• March 12, 2026
• BSD
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🟠 High   ⏱ 15–60 min  Last verified: 12 March 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: RT — XSS via calendar invitations Related CVEs: CVE-2009-3585 CVE-2011-0009 CVE-2011-1685 CVE-2011-1686 CVE-2011-1687 CVE-2011-1688 CVE-2011-1689 CVE-2011-1690  +12 more Upstream summary: Mateusz Szymaniec and CERT Polska Reports: RT is vulnerable to […]

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Fedora 42 — xorg-x11-server-Xwayland — multiple vulnerabilities (5 CVEs) — patch and remediation guide

• March 12, 2026
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-0174d1953a Related CVEs: CVE-2026-33999 CVE-2026-34000 CVE-2026-34001 CVE-2026-34002 CVE-2026-34003 Upstream summary: Update to xwayland 24.1.11 —- Update to xwayland 24.1.10, CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, CVE-2026-34003 Table of contents Symptom & […]

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Debian 13 — zoneminder — multiple vulnerabilities (20 CVEs) — patch and remediation guide

• March 12, 2026
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 12 March 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0227 CVE-2008-1381 CVE-2008-3880 CVE-2008-3881 CVE-2008-3882 CVE-2008-6755 CVE-2008-6756 CVE-2013-0232  +12 more Upstream summary: Buffer overflow in the zms script in ZoneMinder before 1.19.2 may allow a remote attacker to […]

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AlmaLinux 8 — libcap — multiple vulnerabilities (3 CVEs) — patch and remediation guide

• March 12, 2026
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:13285 Related CVEs: CVE-2026-4878 CVE-2023-2602 CVE-2023-2603 Upstream summary: Libcap is a library for getting and setting POSIX.1e (formerly POSIX 6) draft 15 capabilities. Security Fix(es): * libcap: libcap: Privilege escalation via TOCTOU […]

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

• March 12, 2026
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 12 March 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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journalctl storage grows uncontrollably

• March 11, 2026
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 11 March 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Problem Summary Symptoms Diagnostics Root Cause Primary Fix Verification Prevention Rollback Automation Command Reference Escalation Related Notes Problem Summary Systemd journal consumes excessive disk space under /var/log/journal. Symptoms Filesystem usage spikes […]

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Windows Server 2025 — KB5077212 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

• March 11, 2026
• Windows Server
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read  •  Source: Microsoft KB5077212 • MSRC update-guide entry Related CVEs: CVE-2026-21519 CVE-2026-21248 CVE-2026-21247 CVE-2026-21242 CVE-2026-21234 CVE-2026-21236 CVE-2026-21533 CVE-2026-21513  +12 more Affected components: Windows Server 2025 Microsoft summary: Access of resource using incompatible type ('type confusion') […]

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How to Install Podman on Oracle Linux 10

• March 11, 2026
• Oracle Linux
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Introduction How to Install Podman on Oracle Linux 10 on Oracle Linux 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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Amazon Linux 2023 — python-jinja2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

• March 11, 2026
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2025-894 Related CVEs: CVE-2025-27516 CVE-2024-56326 CVE-2024-22195 CVE-2024-34064 Upstream summary: Jinja is an extensible templating engine. Prior to 3.1.6, an oversight in how the Jinja sandboxed environment interacts with the |attr […]

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