Operations

SLES 15 — libbpf0 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libbpf0 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 January 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:0405-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-3534 Upstream summary: A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the […]

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Oracle Linux 8 — webkit2gtk3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — webkit2gtk3 — vulnerability — patch and remediation guide (ELSA-2022-6540)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 January 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6540 Related CVEs: CVE-2022-32893 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 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9999)

🟠 High   ⏱ 15–60 min  Last verified: 5 January 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9999 Related CVEs: CVE-2022-3028 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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How to Configure GlusterFS Distributed Storage on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure GlusterFS Distributed Storage on RHEL 9

GlusterFS is a scalable, distributed file system that aggregates storage from multiple servers into a single, unified namespace accessible over the network. Unlike block-level solutions such as iSCSI or Ceph, GlusterFS operates at the file level and requires no metadata server, making it straightforward to deploy and maintain. On RHEL 9, GlusterFS is available through […]

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Alpine Linux edge — cifs-utils — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — cifs-utils — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 6.15-r0 📖 ~4 min read  •  Source: Alpine secdb entry — cifs-utils 6.15-r0 Related CVEs: CVE-2022-27239 CVE-2022-29869 CVE-2021-20208 CVE-2020-14342 Upstream summary: Alpine main repository for vedge ships cifs-utils 6.15-r0 which addresses CVE-2022-27239. Table of contents Symptom […]

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Common Problems 116950

Ubuntu 22.04 LTS DNS Resolution Intermittently Fails with systemd-resolved

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2023 📖 ~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 & Cross-Refs References & Further […]

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How to Use xlC C/C++ Compiler on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use xlC C/C++ Compiler on IBM AIX 7.3

Introduction IBM AIX 7.3 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use xlc c/c++ compiler on IBM AIX 7.3 with […]

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Debian 11 — python-mistralclient — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-mistralclient — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-4472 Upstream summary: The mistral-dashboard plugin for openstack has a local file inclusion vulnerability through the 'Create Workbook' feature that may result in disclosure of arbitrary local files […]

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Debian 11 — samizdat — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — samizdat — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-0359 Upstream summary: Multiple cross-site scripting (XSS) vulnerabilities in Samizdat before 0.6.2 allow remote authenticated users to inject arbitrary web script or HTML via the (1) message title […]

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Common Problems 111846

Windows Server 2022 – Windows Admin Center gateway certificate chain incomplete – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2023 Affected versions: Windows Server 2022 📖 ~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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