Common Problems

Arch Linux — go — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — go — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • April 13, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202011-16 Related CVEs: CVE-2020-28367 CVE-2020-28366 CVE-2020-28362 CVE-2018-16875 CVE-2018-16874 CVE-2018-16873 CVE-2018-6574 CVE-2017-15041  +12 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 2:1.15.4-1. Fixed in: 2:1.15.5-1. Group: AVG-1278. Table of contents […]

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Oracle Linux 8 — gcc — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gcc — security and stability fixes — required update (ELSA-2020-1864)

  • April 12, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 April 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1864 Related CVEs: CVE-2019-15847 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 118437

Ubuntu 16.04 LTS cloud-init stalls first boot

  • April 12, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 12 April 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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Common Problems 113630

Windows Server 2012 R2 — AAD Connect sync conflict on user attribute causes export error — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 12 April 2021 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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AlmaLinux 8 — rshim — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — rshim — vulnerability — patch and remediation guide

  • April 12, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4228 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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Gentoo Linux — games-board/gnuchess — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — games-board/gnuchess — vulnerability — patch and remediation guide

  • April 12, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-28 Related CVEs: CVE-2021-30184 Upstream summary: The cmd_pgnload() and cmd_pgnreplay() functions in cmd.cc in GNU Chess to not sufficiently validate PGN file input, potentially resulting in a buffer overflow. Table of contents […]

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Gentoo Linux — media-gfx/openscad — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-gfx/openscad — vulnerability — patch and remediation guide

  • April 12, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-35 Related CVEs: CVE-2020-28599 Upstream summary: A buffer overflow exists in OpenSCAD when parsing STL files. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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FreeBSD 12 — flac — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — flac — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • April 12, 2021
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 April 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: flac — fix encoder bug Related CVEs: CVE-2007-3507 CVE-2007-4619 CVE-2014-8962 CVE-2014-9028 CVE-2020-0499 CVE-2021-0561 Upstream summary: The FLAC 1.3.4 release reports: Fix 12 decoder bugs found by oss-fuzz. Fix encoder bug […]

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