July 2022 - Page 39 of 72

Ubuntu 20.04 — libspring-java — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libspring-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7165-1 Related CVEs: CVE-2022-22965 Upstream summary: It was discovered that the Spring Framework incorrectly handled web requests via data binding. An attacker could possibly use this issue to achieve remote […]

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Common Problems 115445

RHEL 7 journalctl Logs Fill Root Filesystem

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 7 📖 ~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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How to Set Up Consul Service Mesh on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Consul Service Mesh on Debian 11

Introduction Deploying set up consul service mesh on 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 […]

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Ubuntu 20.04 — multipath-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — multipath-tools — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5731-1 Related CVEs: CVE-2022-41973 CVE-2022-41974 Upstream summary: It was discovered that multipath-tools incorrectly handled symlinks. A local attacker could possibly use this issue, in combination with other issues, to escalate […]

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Ubuntu 16.04 — check-mk — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — check-mk — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5527-2 Related CVEs: CVE-2017-14955 CVE-2017-9781 CVE-2021-36563 CVE-2022-24565 Upstream summary: USN-5527-1 fixed vulnerabilities in Checkmk. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered […]

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SLES 15 — zstd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — zstd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:1102-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-4899 CVE-2021-24031 CVE-2021-24032 CVE-2019-11922 Upstream summary: A vulnerability was found in zstd v1.4.10, where an attacker can supply empty string as an argument to the […]

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How to Set Up LDAP with OpenLDAP on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up LDAP with OpenLDAP on RHEL 8

LDAP (Lightweight Directory Access Protocol) is the industry-standard protocol for centralised identity management, used to store and query user accounts, groups, and organisational data. OpenLDAP is the most widely deployed open-source LDAP server and is available in RHEL 8’s default repositories. Rather than a flat configuration file, modern OpenLDAP uses the on-line configuration (OLC) backend, […]

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