Operations

Debian 11 — ruby-tzinfo — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-tzinfo — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-31163 Upstream summary: TZInfo is a Ruby library that provides access to time zone data and allows times to be converted using time zone rules. Versions prior to […]

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Windows Server 2022 — KB5028186 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5028186 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5028186 • MSRC update-guide entry Related CVEs: CVE-2023-35365 CVE-2023-35366 CVE-2023-35367 CVE-2023-32057 CVE-2023-35297 CVE-2023-21756 CVE-2023-33166 CVE-2023-33167  +12 more Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root […]

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How to Set Up K3s Lightweight Kubernetes on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up K3s Lightweight Kubernetes on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying set up k3s lightweight kubernetes on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up K3s Lightweight Kubernetes on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the […]

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Ubuntu 16.04 — tcpreplay — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — tcpreplay — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 February 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7231-1 Related CVEs: CVE-2023-27783 CVE-2023-27784 CVE-2023-27785 CVE-2023-27786 CVE-2023-27787 CVE-2023-27788 CVE-2023-27789 CVE-2023-4256  +12 more Upstream summary: It was discovered that Tcpreplay incorrectly handled memory when using the tcprewrite utility. A remote […]

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Ubuntu 22.04 — python-os-brick — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — python-os-brick — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 February 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6241-1 Related CVEs: CVE-2023-2088 https://launchpad.net/bugs/2020111 Upstream summary: Jan Wasilewski and Gorka Eguileor discovered that OpenStack incorrectly handled deleted volume attachments. An authenticated user or attacker could possibly use this issue […]

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Windows Server 2022 — KB5029301 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5029301 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5029301 • MSRC update-guide entry Related CVEs: CVE-2023-36910 CVE-2023-36911 CVE-2023-35385 CVE-2023-35359 CVE-2023-36882 CVE-2023-36889 CVE-2023-36900 CVE-2023-36906  +12 more Affected components: Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root […]

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

Oracle Linux 8 — openssl — vulnerability — patch and remediation guide (ELSA-2022-1065)

🟠 High   ⏱ 15–60 min  Last verified: 8 February 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1065 Related CVEs: CVE-2022-0778 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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CentOS Stream 9 — kernel-rt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — kernel-rt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 February 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2023:5091 Related CVEs: CVE-2023-1637 CVE-2023-20593 CVE-2023-21102 CVE-2023-31248 CVE-2023-3390 CVE-2023-35001 CVE-2023-3610 CVE-2023-3776  +12 more Upstream summary: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely […]

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Debian 10 — nss — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — nss — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 February 2023 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-11745 CVE-2019-17006 CVE-2021-43527 CVE-2022-22747 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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