Common Problems

Common Problems 113634

Windows Server 2016 – Container bind mount access denied on NTFS host path – Fix & Prevention (FIX-PREVENTION-2)

🟡 Medium   ⏱ 5–30 min  Last verified: 17 July 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 […]

Read more
Common Problems 113477

Windows Server 2012 R2 — Install-Module fails because NuGet package provider is missing or outdated — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 17 July 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

Read more
Common Problems 112594

Windows Server 2019 — AGDLP scaling breaks when global groups exceed forest replication threshold — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 July 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 […]

Read more
Ubuntu 16.04 — libjpeg9 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libjpeg9 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5336-1 Related CVEs: CVE-2016-3616 CVE-2018-11212 CVE-2018-11213 CVE-2018-11214 CVE-2018-11813 CVE-2020-14152 CVE-2020-14153 Upstream summary: Aladdin Mubaied discovered that the cjpeg utility in libjpeg9 did not properly validate the input image's size. An […]

Read more
Oracle Linux 8 — dnsmasq — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dnsmasq — vulnerability — patch and remediation guide (ELSA-2021-0150)

🟠 High   ⏱ 15–60 min  Last verified: 17 July 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0150 Related CVEs: CVE-2020-25685 CVE-2020-25681 CVE-2020-25683 CVE-2020-25684 CVE-2020-25687 CVE-2020-25682 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
openSUSE Tumbleweed — zim — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — zim — 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-2020-10870 Upstream summary: Zim through 0.72.1 creates temporary directories with predictable names. A malicious user could predict and create Zim's temporary directories and prevent other […]

Read more
Common Problems 121509

Debian 9 interrupted dpkg Requires Manual Configuration

🟠 High   ⏱ 5–30 min  Last verified: 16 July 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 & […]

Read more
Common Problems 115471

firewalld Zone-Interface Mismatch Causing Intermittent Access

🟡 Medium   ⏱ 5–30 min  Last verified: 16 July 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 […]

Read more
Common Problems 115058

RHEL 8 nftables and firewalld Rules Conflict After Manual Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 16 July 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 […]

Read more
Ubuntu 20.04 — blueman — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — blueman — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 July 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4605-2 Related CVEs: https://launchpad.net/bugs/1897287 CVE-2020-15238 Upstream summary: Vaisha Bernard discovered that blueman did not properly sanitize input on the d-bus interface to blueman-mechanism. A local attacker could possibly use this […]

Read more
CHAT