Linux

Debian 11 — libsass — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libsass — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 May 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-11554 CVE-2017-11555 CVE-2017-11556 CVE-2017-11608 CVE-2018-11499 CVE-2018-11693 CVE-2018-11694 CVE-2018-11695  +12 more Upstream summary: There is a stack consumption vulnerability in the lex function in parser.hpp (as used in sassc) […]

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Ubuntu 22.04 — pdns — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — pdns — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 May 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7203-1 Related CVEs: CVE-2018-1046 CVE-2018-10851 CVE-2018-14626 CVE-2018-14644 CVE-2020-17482 CVE-2022-27227 Upstream summary: Wei Hao discovered that PowerDNS Authoritative Server incorrectly handled memory when accessing certain files. An attacker could possibly use […]

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Ubuntu 20.04 — linux-azure-5.13 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-azure-5.13 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 May 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5485-1 Related CVEs: CVE-2022-21123 CVE-2022-21125 CVE-2022-21166 CVE-2022-1158 CVE-2022-1966 CVE-2022-1972 CVE-2022-21499 CVE-2022-24958  +12 more Upstream summary: It was discovered that some Intel processors did not completely perform cleanup actions on multi-core […]

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

Oracle Linux 8 — cpio — vulnerability — patch and remediation guide (ELSA-2022-1991)

🟡 Medium   ⏱ 10–30 min  Last verified: 23 May 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1991 Related CVEs: CVE-2021-38185 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 Install and Configure Ansible on Debian 11 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure Ansible on Debian 11

Configuration management systems are designed to streamline the process of controlling large numbers of servers, for administrators and operations teams. They allow you to control many different systems in an automated way from one central location. This guide covers setting up the Ansible configuration management system on Debian 11.

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Oracle Linux 8 — Power Button Defaults to ACPI Suspend Mode — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Power Button Defaults to ACPI Suspend Mode

🟠 High   ⏱ 5–30 min  Last verified: 22 May 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 25597898 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 […]

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Common Problems 120585

Debian 11 sudo Command Not Found or Permission Denied

🟠 High   ⏱ 5–30 min  Last verified: 22 May 2022 Affected versions: Debian 11 📖 ~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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Common Problems 117124

Ubuntu 22.04 LTS Docker Permission Denied on /var/run/docker.sock

🟡 Medium   ⏱ 5–30 min  Last verified: 22 May 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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Debian 11 — pglogical — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pglogical — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 May 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3515 Upstream summary: A shell injection flaw was found in pglogical in versions before 2.3.4 and before 3.6.26. An attacker with CREATEDB privileges on a PostgreSQL server can […]

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Debian 10 — needrestart — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — needrestart — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 May 2022 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-30688 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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