Common Problems

Oracle Linux 8 — httpd:2.4 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — httpd:2.4 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4751)

🟡 Medium   ⏱ 10–30 min  Last verified: 21 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4751 Related CVEs: CVE-2019-10082 CVE-2018-17189 CVE-2020-1927 CVE-2019-10081 CVE-2019-10097 CVE-2019-10092 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 121681

Debian 9 – Fail2ban Not Banning with nftables Backend – Jail Action Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 21 December 2020 Affected versions: Debian 9 📖 ~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 112604

Windows Server 2019 — RID master pool exhaustion approaching: new objects refused soon — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 December 2020 Affected versions: Windows Server 2019 📖 ~2 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 18.04 — fastd — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — fastd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 December 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4718-1 Related CVEs: CVE-2020-27638 Upstream summary: It was discovered that fastd incorrectly handled certain packets. An attacker could possibly use this issue to cause a denial of service. Table of […]

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

Oracle Linux 8 — libarchive — vulnerability — patch and remediation guide (ELSA-2020-0271)

🟠 High   ⏱ 15–60 min  Last verified: 21 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0271 Related CVEs: CVE-2019-18408 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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openSUSE Tumbleweed — python38-M2Crypto — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python38-M2Crypto — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:2562-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25657 Upstream summary: A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption […]

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Oracle Linux 8 — nodejs:10 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:10 — vulnerability — patch and remediation guide (ELSA-2021-0548)

🟡 Medium   ⏱ 10–30 min  Last verified: 21 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0548 Related CVEs: CVE-2020-8287 CVE-2020-7788 CVE-2020-15366 CVE-2020-8116 CVE-2020-7754 CVE-2020-15095 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — webkit2gtk3 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — webkit2gtk3 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-1777)

🟡 Medium   ⏱ 10–30 min  Last verified: 20 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1777 Related CVEs: CVE-2021-30889 CVE-2022-22637 CVE-2021-30848 CVE-2021-30884 CVE-2021-30890 CVE-2021-30818 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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