Logging Monitoring

Ubuntu 20.04 — knot-resolver — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — knot-resolver — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • November 12, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 November 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7047-1 Related CVEs: CVE-2019-10190 CVE-2019-10191 CVE-2019-19331 CVE-2020-12667 CVE-2022-40188 Upstream summary: Vladimír Čunát discovered that Knot Resolver incorrectly handled input during DNSSEC validation. A remote attacker could possibly use this issue […]

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SLES 15 — rust1.62 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — rust1.62 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • November 12, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 November 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2423-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-36113 CVE-2022-36114 Upstream summary: Cargo is a package manager for the rust programming language. After a package is downloaded, Cargo extracts its source code in […]

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Oracle Linux 9 — LibRaw — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — LibRaw — vulnerability — patch and remediation guide (ELSA-2023-6343)

  • November 12, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 November 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6343 Related CVEs: CVE-2021-32142 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 — microcode_ctl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — microcode_ctl — vulnerability — patch and remediation guide (ELSA-2022-9508)

  • November 12, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 12 November 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9508 Related CVEs: CVE-2022-21123 CVE-2022-21127 CVE-2022-21125 CVE-2022-21166 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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SLES 12 — syslog-ng — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — syslog-ng — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • November 12, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 12 November 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:0319-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-38725 CVE-2020-8019 CVE-2011-0343 CVE-2011-1951 Upstream summary: An integer overflow in the RFC3164 parser in One Identity syslog-ng 3.0 through 3.37 allows remote attackers to cause […]

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How to Set Up DHCP Failover on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up DHCP Failover on Windows Server 2022

How to Install PostgreSQL on Windows Server 2022 PostgreSQL is one of the most powerful open-source relational database management systems available. Installing it on Windows Server 2022 provides a robust, enterprise-grade database platform suitable for production workloads. This guide walks through the complete installation process using the EnterpriseDB installer, configuring the service, securing the instance, […]

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Common Problems 114583

RHEL 9 auditd backlog warnings and dropped audit events

  • November 11, 2022
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 11 November 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 & Cross-Refs References & Further […]

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Common Problems 114913

RHEL 8 systemd service fails repeatedly after reboot

  • November 11, 2022
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 11 November 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 & Cross-Refs References & Further […]

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Amazon Linux 2 — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • November 11, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2041 Related CVEs: CVE-2022-47629 CVE-2022-3515 Upstream summary: Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser. (CVE-2022-47629) Table of contents Symptom & Impact Environment […]

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