Common Problems

Debian 11 — gnupg2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — gnupg2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2023 CVE-2006-3082 CVE-2006-3746 CVE-2006-6169 CVE-2006-6235 CVE-2007-1263 CVE-2008-1530 CVE-2010-2547  +12 more Upstream summary: The send_pinentry_environment function in asshelp.c in gpg2 on SUSE Linux 9.3 does not properly handle certain […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 24 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-0842 CVE-2015-0843 Upstream summary: yubiserver before 0.6 is prone to SQL injection issues, potentially leading to an authentication bypass. Table of contents Symptom & Impact Environment & Reproduction […]

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Ubuntu 16.04 — plib — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — plib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 November 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6353-1 Related CVEs: CVE-2021-38714 Upstream summary: Wooseok Kang discovered that PLIB did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted TGA […]

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Debian 11 — exiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — exiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-4676 CVE-2007-6353 CVE-2008-2696 CVE-2014-9449 CVE-2017-11591 CVE-2017-11683 CVE-2017-14859 CVE-2017-14862  +12 more Upstream summary: Buffer overflow in Andreas Huggel Exiv2 before 0.9 does not null terminate strings before calling the […]

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Oracle Linux 8 — Networking Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Networking Issues (OL8-ISSUES-NETWORK)

🟠 High   ⏱ 5–30 min  Last verified: 23 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNT-ol8-issues-network 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 […]

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

AlmaLinux 8 — cscope — 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-2021:1828 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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Common Problems 117946

Ubuntu 18.04 LTS – DNS resolution fails with systemd-resolved stub issues – Fix & Prevention (FIX-PREVENTION-2)

🟠 High   ⏱ 5–30 min  Last verified: 23 November 2021 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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IBM AIX 7.1 — CVE-2021-29814 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2021-29814 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 23 November 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2021-29814, IBM Support Bulletin CVE: CVE-2021-29814 NVD summary: IBM Jazz for Service Management 1.1.3.10 and IBM Tivoli Netcool/OMNIbus_GUI is vulnerable to stored cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript […]

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FreeBSD 12 — py36-matrix-synapse — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py36-matrix-synapse — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 November 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-matrix-synapse — several vulnerabilities Related CVEs: CVE-2019-5885 CVE-2020-26257 CVE-2020-26891 CVE-2021-29471 CVE-2021-39163 CVE-2021-39164 CVE-2021-41281 Upstream summary: Matrix developers report: This release patches one high severity issue affecting Synapse installations 1.47.0 and […]

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Common Problems 113050

Windows Server 2016 — Network stack fails after Winsock catalog corruption — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 November 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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