Common Problems

Common Problems 117916

Ubuntu 18.04 LTS – dpkg interrupted state blocks package operations – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 May 2020 Affected versions: Ubuntu 18.04 LTS 📖 ~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 — mosh — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — mosh — 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 Related CVEs: CVE-2012-2385 Upstream summary: The terminal dispatcher in mosh before 1.2.1 allows remote authenticated users to cause a denial of service (long loop and CPU consumption) via an escape sequence […]

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Common Problems 117420

Ubuntu 20.04 LTS UFW Rules Not Persisting as Expected

🟡 Medium   ⏱ 5–30 min  Last verified: 5 May 2020 📖 ~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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Common Problems 113127

Windows Server 2016 — MSU install fails with architecture mismatch on Server Core host — Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 5 May 2020 Affected versions: Windows Server 2016 📖 ~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 112599

Windows Server 2019 — Time synchronization drift causes Kerberos authentication failures — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 May 2020 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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Alpine Linux edge — pcre — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — pcre — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 8.44-r0 📖 ~4 min read  •  Source: Alpine secdb entry — pcre 8.44-r0 Related CVEs: CVE-2020-14155 CVE-2017-7186 CVE-2017-11164 CVE-2017-16231 Upstream summary: Alpine main repository for vedge ships pcre 8.44-r0 which addresses CVE-2020-14155. Table of contents Symptom […]

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FreeBSD 12 — a2ps-letter — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — a2ps-letter — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: a2ps — insecure temporary file creation Related CVEs: CVE-2004-1170 CVE-2004-1377 Upstream summary: A Secunia Security Advisory reports that Javier Fernández-Sanguino Peña has found temporary file creation vulnerabilities in the fixps […]

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Ubuntu 20.04 — ansible — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ansible — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 May 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7330-1 Related CVEs: CVE-2015-3908 CVE-2015-6240 CVE-2016-8614 CVE-2019-10206 CVE-2019-14846 CVE-2019-14904 CVE-2020-10729 CVE-2020-1739  +6 more Upstream summary: It was discovered that Ansible did not properly verify certain fields of X.509 certificates. An […]

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