Common Problems

Oracle Linux 8 — .NET 6.0 security and bugfix update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 6.0 security and bugfix update (ELSA-2022-6539)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6539 Related CVEs: CVE-2022-38013 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 115420

systemctl Unit Fails Due to Dependency Ordering

🟡 Medium   ⏱ 5–30 min  Last verified: 3 February 2021 📖 ~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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FreeBSD 12 — py39-httpx — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-httpx — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 February 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-httpx — input validation vulnerability Related CVEs: CVE-2021-41945 Upstream summary: lebr0nli reports: Encode OSS httpx <=1.0.0.beta0 is affected by improper input validation in `httpx.URL`, `httpx.Client` and some functions using `httpx.URL.copy_with`. […]

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Common Problems 115042

RHEL 8 DNF Module Stream Conflict During Stack Upgrade

🟠 High   ⏱ 5–30 min  Last verified: 3 February 2021 Affected versions: 8.6 8.7 8.8 8.9 8.10 📖 ~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 […]

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Common Problems 112491

Windows Server 2019 – Windows container fails to start after host cumulative update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 3 February 2021 Affected versions: Windows Server 2019 📖 ~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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openSUSE Tumbleweed — qore — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — qore — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-13615 Upstream summary: lib/QoreSocket.cpp in Qore before 0.9.4.2 lacks hostname verification for X.509 certificates. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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SLES 12 — file-roller — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — file-roller — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 February 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:0032-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-36314 CVE-2019-16680 CVE-2020-11736 Upstream summary: fr-archive-libarchive.c in GNOME file-roller through 3.38.0, as used by GNOME Shell and other software, allows Directory Traversal during extraction because […]

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SLES 12 — chrony — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — chrony — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 February 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2014-0021 CVE-2020-14367 CVE-2012-4502 CVE-2012-4503 CVE-2016-1567 Upstream summary: Chrony before 1.29.1 has traffic amplification in cmdmon protocol Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2020-0512)

🟠 High   ⏱ 15–60 min  Last verified: 3 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0512 Related CVEs: CVE-2020-6800 CVE-2020-6798 CVE-2020-6796 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 — .NET Core on Red Hat Enterprise Linux — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET Core on Red Hat Enterprise Linux — security and stability fixes — required update (ELSA-2019-2731)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-2731 Related CVEs: CVE-2019-1301 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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