Linux

Oracle Linux 8 — httpd:2.4 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — httpd:2.4 — vulnerability — patch and remediation guide (ELSA-2022-9682)

🟠 High   ⏱ 15–60 min  Last verified: 26 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9682 Related CVEs: CVE-2022-31813 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 — maven:3.6 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — maven:3.6 — vulnerability — patch and remediation guide (ELSA-2022-4797)

🟠 High   ⏱ 15–60 min  Last verified: 26 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4797 Related CVEs: CVE-2022-29599 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 — dnsmasq security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dnsmasq security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1715)

🟢 Low   ⏱ 5–15 min  Last verified: 25 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1715 Related CVEs: CVE-2019-14834 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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Common Problems 120548

Debian 11 – systemd service remains in activating state after reboot

🟠 High   ⏱ 5–30 min  Last verified: 25 April 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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AlmaLinux 8 — scl-utils — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — scl-utils — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1959 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Set Up Istio Service Mesh on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Istio Service Mesh on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up istio service mesh on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Istio Service Mesh on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the […]

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Common Problems 116919

Ubuntu 22.04 LTS – apt update fails due to expired repository Release file

🟡 Medium   ⏱ 5–30 min  Last verified: 25 April 2022 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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 […]

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Debian 11 — quassel — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — quassel — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-5657 CVE-2010-3443 CVE-2011-3354 CVE-2013-4422 CVE-2013-6404 CVE-2014-8483 CVE-2015-2778 CVE-2015-2779  +6 more Upstream summary: CRLF injection vulnerability in Quassel Core before 0.3.0.3 allows remote attackers to spoof IRC messages as […]

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How to Upgrade from Debian 10 to Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Upgrade from Debian 10 to Debian 11

Introduction Deploying upgrade from debian 10 to debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

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SLES 15 — patch — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — patch — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 April 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1338-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-13636 CVE-2010-4651 CVE-2015-1196 CVE-2016-10713 CVE-2018-1000156 CVE-2021-45261 CVE-2019-20633 CVE-2018-6952  +1 more Upstream summary: In GNU patch through 2.7.6, the following of symlinks is mishandled in certain […]

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