Ubuntu 22.04

Common Problems 116971

Ubuntu 22.04 LTS – UFW allows service but traffic still blocked by policy order – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 9 June 2025 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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Ubuntu 22.04 — slurm-wlm — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — slurm-wlm — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 June 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8236-1 Related CVEs: CVE-2023-49933 CVE-2023-41914 CVE-2025-43904 CVE-2023-49937 CVE-2023-49938 CVE-2022-29500 CVE-2022-29501 CVE-2022-29502 Upstream summary: It was discovered that Slurm did not correctly handle certain file system operations. An attacker could possibly […]

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Ubuntu 22.04 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — samba — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 June 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7826-1 Related CVEs: CVE-2025-10230 CVE-2025-9640 CVE-2023-4091 CVE-2023-4154 CVE-2023-42669 CVE-2023-42670 CVE-2022-2127 CVE-2023-3347  +12 more Upstream summary: Andrew Walker discovered that Samba incorrectly initialized memory in the vfs_streams_xattr module. An authenticated attacker […]

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Common Problems 116992

Ubuntu 22.04 time synchronization is incorrect

🟡 Medium   ⏱ 5–30 min  Last verified: 2 June 2025 📖 ~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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Ubuntu 22.04 — pam-u2f — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — pam-u2f — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 June 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7806-1 Related CVEs: CVE-2025-23013 Upstream summary: It was discovered that PAM/U2F could allow for authentication bypass in some configurations. An attacker could possibly use this issue to execute arbitrary code […]

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Ubuntu 22.04 — cjson — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — cjson — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7973-1 Related CVEs: CVE-2023-53154 CVE-2025-57052 CVE-2023-26819 CVE-2023-50471 CVE-2023-50472 CVE-2024-31755 Upstream summary: It was discovered that cJSON incorrectly handled parsing large numbers. An attacker could possibly use this issue to cause […]

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Ubuntu 22.04 — dotnet6 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — dotnet6 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 27 May 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7058-1 Related CVEs: CVE-2024-38229 CVE-2024-43483 CVE-2024-43484 CVE-2024-43485 CVE-2024-30105 CVE-2024-35264 CVE-2024-38095 CVE-2024-21386  +12 more Upstream summary: Brennan Conroy discovered that the .NET Kestrel web server did not properly handle closing HTTP/3 […]

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Ubuntu 22.04 — raptor2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — raptor2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7316-1 Related CVEs: CVE-2020-25713 CVE-2024-57822 CVE-2024-57823 Upstream summary: It was discovered that Raptor incorrectly handled memory operations when processing certain input files. A remote attacker could possibly use this issue […]

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Ubuntu 22.04 — graphicsmagick — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — graphicsmagick — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7433-1 Related CVEs: CVE-2025-27795 CVE-2025-27796 Upstream summary: It was discovered that GraphicsMagick did not properly limit image dimensions, which could lead to excessive memory consumption. An attacker could possibly use […]

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Ubuntu 22.04 — rapidjson — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — rapidjson — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8189-1 Related CVEs: CVE-2024-39684 CVE-2024-38517 Upstream summary: It was discovered that RapidJSON did not properly protect against integer overflows in certain instances when parsing JSON text. A remote attacker could […]

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