Common Problems

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-11748 Related CVEs: CVE-2025-8027 CVE-2025-8031 CVE-2025-8028 CVE-2025-8032 CVE-2025-8030 CVE-2025-8035 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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pr cp 116925 r2

Ubuntu 22.04 LTS – Netplan apply fails from invalid YAML – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 22.04 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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Oracle Linux 8 — Networking Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Networking Issues (8-NETWORKING-ISSUES)

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNB-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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pr cp 117420 r2

Ubuntu 20.04 LTS UFW Rules Not Persisting as Expected

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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SLES 16 — helm — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — helm — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:1338-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-1996 CVE-2021-21272 CVE-2022-36055 CVE-2024-45337 CVE-2025-53547 CVE-2025-55199 CVE-2026-35206 CVE-2022-23524  +11 more Upstream summary: Authorization Bypass Through User-Controlled Key in GitHub repository emicklei/go-restful prior to v3.8.0. Table […]

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pr cp 117927 r2

Ubuntu 18.04 DNS Resolution Fails Intermittently with systemd-resolved

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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SLES 15 — typelib — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — typelib — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory RHSA-2024:9144 (see also SUSE bugzilla) Related CVEs: CVE-2024-4558 CVE-2022-0108 CVE-2021-33516 CVE-2017-1000121 CVE-2018-4437 CVE-2018-4438 CVE-2018-4441 CVE-2018-4442  +12 more Upstream summary: Use after free in ANGLE in Google Chrome prior to 124.0.6367.155 allowed a […]

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NetBSD 10.0 — privoxy — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — privoxy — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2020-35502 CVE-2021-20209 CVE-2016-1982 CVE-2016-1983 CVE-2021-20210 CVE-2021-20211 CVE-2021-20212 CVE-2021-20213  +9 more Upstream summary: pkgsrc audit-packages flagged privoxy>=3.0.5<3.0.18 for vulnerability class 'http-response-splitting'. Reference: http://www.securityfocus.com/bid/50768 Table of contents Symptom & Impact Environment […]

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NetBSD 10.0 — prometheus — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — prometheus — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2019-3826 CVE-2021-29622 CVE-2021-3538 Upstream summary: pkgsrc audit-packages flagged prometheus<2.7.1 for vulnerability class 'cross-site-scripting'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-3826 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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NetBSD 10.0 — protobuf — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — protobuf — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2015-5237 CVE-2021-22570 CVE-2022-1941 Upstream summary: pkgsrc audit-packages flagged protobuf<3.4.0 for vulnerability class 'buffer-overflow'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2015-5237 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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