Common Problems

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

Oracle Linux 8 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-4056)

🟠 High   ⏱ 15–60 min  Last verified: 17 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4056 Related CVEs: CVE-2020-36385 CVE-2021-3656 CVE-2021-0512 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 117932

Hash Sum mismatch During apt update

🟡 Medium   ⏱ 5–30 min  Last verified: 17 October 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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Debian 11 — etherape — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — etherape — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-3369 Upstream summary: The add_conversation function in conversations.c in EtherApe before 0.9.12 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via […]

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Common Problems 117634

Ubuntu 20.04 LTS Failed to Start Due to Broken fstab Entry

🟡 Medium   ⏱ 5–30 min  Last verified: 17 October 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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Debian 11 — xinetd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xinetd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-0871 CVE-2003-0211 CVE-2012-0862 CVE-2013-4342 Upstream summary: xinetd 2.3.4 leaks file descriptors for the signal pipe to services that are launched by xinetd, which could allow those services to […]

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Debian 11 — blender — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — blender — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3151 CVE-2005-3302 CVE-2005-4470 CVE-2007-1253 CVE-2008-1102 CVE-2008-1103 CVE-2008-4863 CVE-2009-3850  +12 more Upstream summary: Buffer overflow in blenderplay in Blender Player 2.37a allows attackers to execute arbitrary code via a […]

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Debian 11 — bzr — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — bzr — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2099 CVE-2017-14176 Upstream summary: Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, […]

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Common Problems 113051

Windows Server 2016 — Offline WIM Servicing Fails to Inject Security Update CAB — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 17 October 2021 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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