Linux

Ubuntu 16.04 — oddjob — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — oddjob — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 February 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5169-1 Related CVEs: CVE-2020-10737 Upstream summary: Matthias Gerstner discovered that there was a race condition in the mkhomedir tool shipped with the oddjob package. An authenticated attacker could use this […]

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How To Install and Configure GitLab on Debian 9 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure GitLab on Debian 9

GitLab CE, or Community Edition, is an open-source application primarily used to host Git repositories, with additional development-related features like issue tracking. It is designed to be hosted using your own infrastructure, and…

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

Oracle Linux 8 — curl — vulnerability — patch and remediation guide (ELSA-2021-3582)

🟡 Medium   ⏱ 10–30 min  Last verified: 16 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3582 Related CVEs: CVE-2021-22923 CVE-2021-22922 CVE-2021-22924 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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Oracle Linux 8 — java-11-openjdk security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-11-openjdk security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-5683)

🟠 High   ⏱ 15–60 min  Last verified: 15 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5683 Related CVEs: CVE-2022-21541 CVE-2022-21540 CVE-2022-34169 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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Common Problems 118959

Ubuntu 14.04 LTS – root filesystem full causes service outages

🔴 Critical   ⏱ 5–30 min  Last verified: 15 February 2021 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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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Common Problems 118474

Ubuntu 16.04 LTS NTP drift causes TLS and token validation failures

🟡 Medium   ⏱ 5–30 min  Last verified: 15 February 2021 Affected versions: 16.04 📖 ~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 […]

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openSUSE Tumbleweed — pngcheck — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — pngcheck — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:2177-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-27818 Upstream summary: A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by […]

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Common Problems 115495

RHEL 7 MariaDB service Fails After Unclean Shutdown

🟠 High   ⏱ 5–30 min  Last verified: 15 February 2021 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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Ubuntu 20.04 — libexif — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libexif — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 February 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4624-1 Related CVEs: CVE-2020-0452 CVE-2020-0093 CVE-2020-0182 CVE-2020-0198 CVE-2020-13112 CVE-2020-13113 CVE-2020-13114 CVE-2018-20030  +1 more Upstream summary: It was discovered that libexif incorrectly handled certain inputs. An attacker could possibly use this […]

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CHAT