Operations

Debian 11 — passenger — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — passenger — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-4136 CVE-2014-1831 CVE-2015-7519 CVE-2016-10345 CVE-2017-16355 CVE-2018-12029 Upstream summary: ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain privileges or possibly change the ownership […]

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How to Configure Console and Terminal Settings on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Console and Terminal Settings 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 configure console and terminal settings on IBM AIX 7.3 […]

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Ubuntu 22.04 — dbus — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — dbus — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 January 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5704-1 Related CVEs: CVE-2022-42010 CVE-2022-42011 CVE-2022-42012 Upstream summary: It was discovered that DBus incorrectly handled messages with invalid type signatures. A local attacker could possibly use this issue to cause […]

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Ubuntu 18.04 — opusfile — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — opusfile — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 January 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5937-1 Related CVEs: CVE-2022-47021 Upstream summary: It was discovered that Opusfile was not properly validating pointer arguments in some of its functions, which could lead to a NULL pointer dereference. […]

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Common Problems 112559

Windows Server 2019 — Hyper-V live migration fails with Kerberos constrained delegation errors — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 January 2023 Affected versions: Windows Server 2019 📖 ~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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SLES 15 — amazon-ssm-agent — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — amazon-ssm-agent — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 January 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:1510-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-29527 Upstream summary: Amazon AWS amazon-ssm-agent before 3.1.1208.0 creates a world-writable sudoers file, which allows local attackers to inject Sudo rules and escalate privileges to […]

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Common Problems 111756

Windows Server 2022 – Windows Update fails with 0x800f0831 due to missing payload – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 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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Oracle Linux 8 — java-17-openjdk — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-17-openjdk — vulnerability — patch and remediation guide (ELSA-2022-0161)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 January 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0161 Related CVEs: CVE-2022-21294 CVE-2022-21299 CVE-2022-21283 CVE-2022-21248 CVE-2022-21291 CVE-2022-21340 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2023-12119)

🟠 High   ⏱ 15–60 min  Last verified: 8 January 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12119 Related CVEs: CVE-2022-4139 CVE-2022-42896 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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How to Configure Windows Server 2022 Routing and Remote Access — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server 2022 Routing and Remote Access

How to Configure SSL/TLS in IIS on Windows Server 2022 Securing your IIS websites with SSL/TLS is essential for protecting data in transit and establishing trust with visitors. Windows Server 2022 ships with IIS 10, which supports modern TLS configurations including TLS 1.3. This guide covers obtaining and importing SSL certificates, binding them to IIS […]

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