Common Problems

pr cp 125043 r2

Oracle Linux 8 – Common Problem 008 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 8 📖 ~3 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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Ubuntu 20.04 — linux-aws — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-aws — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8273-1 Related CVEs: CVE-2024-50304 CVE-2026-23112 CVE-2026-23209 CVE-2026-31431 CVE-2026-31504 CVE-2026-31533 CVE-2026-43033 CVE-2026-43077  +12 more Upstream summary: Several security issues were discovered in the Linux kernel. An attacker could possibly use these […]

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SLES 16 — postgresql-jdbc — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — postgresql-jdbc — multiple vulnerabilities (5 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-SU-2024:0769-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-1597 CVE-2022-31197 CVE-2025-49146 CVE-2022-26520 CVE-2022-41946 Upstream summary: pgjdbc, the PostgreSQL JDBC Driver, allows attacker to inject SQL if using PreferQueryMode=SIMPLE. Note this is not the […]

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Ubuntu 18.04 — linux-aws-5.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-aws-5.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8273-1 Related CVEs: CVE-2024-50304 CVE-2026-23112 CVE-2026-23209 CVE-2022-49046 CVE-2024-46816 CVE-2025-37849 CVE-2026-23060 CVE-2026-23074  +12 more Upstream summary: Several security issues were discovered in the Linux kernel. An attacker could possibly use these […]

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pr cp 118455 r2

Network Interface Not Managed by NetworkManager

🟡 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 12 — libfreebl3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libfreebl3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2021:385-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-12400 CVE-2020-12401 CVE-2020-12403 CVE-2020-6829 CVE-2026-2781 CVE-2025-9187 CVE-2023-0767 CVE-2022-31741  +12 more Upstream summary: When converting coordinates from projective to affine, the modular inversion was not performed […]

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pr cp 118977 r2

DNS Resolution Fails Due to resolvconf Issues on Ubuntu 14.04

🟡 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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CentOS Stream 10 — yggdrasil — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — yggdrasil — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:17075 Related CVEs: CVE-2026-32282 CVE-2026-32283 CVE-2026-25679 CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 Upstream summary: yggdrasil is a system daemon that subscribes to topics on an MQTT broker and routes any data received on the […]

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pr cp 119480 r2

Debian 13 DNS Resolution Fails with systemd-resolved Misconfiguration

🟡 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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