Security Hardening

openSUSE Leap 15.6 — libavif16 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — libavif16 — multiple vulnerabilities (2 CVEs) — 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-2025:02816-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-48174 CVE-2025-48175 Upstream summary: In libavif before 1.3.0, makeRoom in stream.c has an integer overflow and resultant buffer overflow in stream->offset+size. Table of contents […]

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SLES 16 — hwloc — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — hwloc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2022-47022 Upstream summary: An issue was discovered in open-mpi hwloc 2.1.0 allows attackers to cause a denial of service or other unspecified impacts via glibc-cpuset in topology-linux.c. Table of […]

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SLES 16 — libyang2 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libyang2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2023-26916 Upstream summary: libyang from v2.0.164 to v2.1.30 was discovered to contain a NULL pointer dereference via the function lys_parse_mem at lys_parse_mem.c. Table of contents […]

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SLES 15 — zypper-docker — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — zypper-docker — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:1042-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-2808 Upstream summary: HashiCorp Consul and Consul Enterprise 1.18.20 up to 1.21.10 and 1.22.4 are vulnerable to arbitrary file read when configured with Kubernetes authentication. […]

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Windows Server 2016 — KB5073697 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5073697 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5073697 • MSRC update-guide entry Related CVEs: CVE-2026-0386 CVE-2026-20816 CVE-2026-20820 CVE-2026-20821 CVE-2026-20828 CVE-2026-20831 CVE-2026-20833 CVE-2026-20834  +12 more Affected components: Windows Server 2016 Microsoft summary: Improper access control in Windows Deployment Services allows […]

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Oracle Linux 10 — image-builder — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — image-builder — vulnerability — patch and remediation guide (ELSA-2026-13642)

🟠 High   ⏱ 15–60 min  Last verified: 7 May 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-13642 Related CVEs: CVE-2026-25679 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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Oracle Linux 9 — containernetworking-plugins — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — containernetworking-plugins — vulnerability — patch and remediation guide (ELSA-2025-9143)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-9143 Related CVEs: CVE-2025-22871 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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Amazon Linux 2 — open-vm-tools — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — open-vm-tools — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2025-3036 Related CVEs: CVE-2025-41244 CVE-2023-34058 CVE-2023-34059 CVE-2023-20900 CVE-2022-31676 CVE-2025-22247 CVE-2023-20867 Upstream summary: VMware Aria Operations and VMware Tools contain a local privilege escalation vulnerability. A malicious local actor with non-administrative […]

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CentOS Stream 10 — protobuf — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — protobuf — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 May 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:3094 Related CVEs: CVE-2026-0994 Upstream summary: The protobuf packages provide Protocol Buffers, Google's data interchange format. Protocol Buffers can encode structured data in an efficient yet extensible format, and provide a […]

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How to Use Podman Quadlet on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Use Podman Quadlet on RHEL 10

Introduction How to Use Podman Quadlet on RHEL 10 on RHEL 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 and […]

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