Common Problems

pr cp 125003 r2

Oracle Linux 8 – Common Problem 004 – 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-lowlatency-hwe-5.15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-lowlatency-hwe-5.15 — 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-8291-2 Related CVEs: CVE-2024-35862 CVE-2024-50060 CVE-2026-23274 CVE-2026-23351 CVE-2023-2640 CVE-2023-32629 CVE-2026-23112 CVE-2026-23273  +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 — iperf — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — iperf — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2016-4303 CVE-2023-38403 CVE-2025-54351 CVE-2024-26306 CVE-2024-53580 CVE-2025-54349 CVE-2025-54350 Upstream summary: The parse_string function in cjson.c in the cJSON library mishandles UTF8/16 strings, which allows remote attackers […]

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Ubuntu 18.04 — libarchive — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libarchive — 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-8292-1 Related CVEs: CVE-2026-4424 CVE-2026-4426 CVE-2026-5121 CVE-2019-19221 CVE-2025-25724 CVE-2025-5916 CVE-2025-5917 CVE-2026-4111  +12 more Upstream summary: It was discovered that libarchive incorrectly handled certain RAR archives. An attacker could possibly use […]

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SLES 15 — docker — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — docker — 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 SUSE-RU-2024:4391-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-41110 CVE-2023-47108 CVE-2023-45142 CVE-2024-24786 CVE-2024-3727 CVE-2024-23651 CVE-2024-23653 CVE-2023-28840  +12 more Upstream summary: Moby is an open-source project created by Docker for software containerization. A security […]

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pr cp 118425 r2

NO_PUBKEY and Signature Verification Errors in apt

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

SLES 12 — java — 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-SU-2020:0001-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-17631 CVE-2020-27221 CVE-2012-0497 CVE-2012-1533 CVE-2012-1682 CVE-2012-1713 CVE-2012-1716 CVE-2012-1723  +12 more Upstream summary: From Eclipse OpenJ9 0.15 to 0.16, access to diagnostic operations such as causing […]

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pr cp 118948 r2

GRUB Rescue Prompt After Kernel Update 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 — ruby — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — ruby — multiple vulnerabilities (7 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-2026:18065 Related CVEs: CVE-2026-41316 CVE-2025-24294 CVE-2025-58767 CVE-2025-61594 CVE-2025-25186 CVE-2025-27219 CVE-2025-27221 Upstream summary: Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system […]

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pr cp 119450 r2

Debian 13 systemd Service Fails to Start After Update

🟡 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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