Common Problems

Arch Linux — flatpak — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — flatpak — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202101-40 Related CVEs: CVE-2021-21261 CVE-2019-5736 CVE-2021-21381 Upstream summary: Type: sandbox escape. Status: Fixed. Affected: 1.9.2-1. Fixed in: 1.10.0-1. Group: AVG-1454. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Oracle Linux 8 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-2199)

🟠 High   ⏱ 15–60 min  Last verified: 16 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-2199 Related CVEs: CVE-2022-23267 CVE-2022-29145 CVE-2022-29117 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 118063

Failed to Mount CIFS Share at Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 16 December 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 13 — dokuwiki — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — dokuwiki — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Dokuwiki — cross site scripting vulnerability Related CVEs: CVE-2006-4674 CVE-2006-4675 CVE-2006-4679 CVE-2006-5098 CVE-2006-5099 CVE-2007-3930 CVE-2009-1960 CVE-2010-0287  +5 more Upstream summary: Secunia Research reports: Secunia Research has discovered a vulnerability in […]

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AlmaLinux 8 — python-ldap — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python-ldap — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4313 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 12 — rabbitmq — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — rabbitmq — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 December 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: RabbitMQ — Denial of Service via improper input validation Related CVEs: CVE-2015-0862 CVE-2016-9877 CVE-2021-22116 Upstream summary: Jonathon Knudsen of Synopsys Cybersecurity Research Center reports: All versions prior to 3.8.16 are […]

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FreeBSD 13 — zh_TW-openoffice — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — zh_TW-openoffice — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: openoffice — DOC document heap overflow vulnerability Related CVEs: CVE-2005-0941 Upstream summary: AD-LAB reports that a heap-based buffer overflow vulnerability exists in OpenOffice's handling of DOC documents. When reading a […]

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FreeBSD 12 — aide — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — aide — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 December 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: aide — heap-based buffer overflow Related CVEs: CVE-2021-45417 Upstream summary: David Bouman reports: AIDE before 0.17.4 allows local users to obtain root privileges via crafted file metadata (such as XFS […]

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Debian 11 — lxterminal — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — lxterminal — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-10369 Upstream summary: unixsocket.c in lxterminal through 0.3.0 insecurely uses /tmp for a socket file, allowing a local user to cause a denial of service (preventing terminal launch), […]

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Ubuntu 20.04 — fail2ban — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — fail2ban — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 December 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5232-1 Related CVEs: CVE-2021-32749 Upstream summary: Jakub Żoczek discovered that certain Fail2ban actions handled whois responses in an insecure way. If Fail2ban was configured to use certain mail actions like […]

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