ubuntu

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

Ubuntu 18.04 — vlc — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 June 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7243-1 Related CVEs: CVE-2024-46461 CVE-2023-47359 CVE-2023-47360 CVE-2019-19721 CVE-2020-13428 CVE-2021-25801 CVE-2021-25802 CVE-2021-25803  +12 more Upstream summary: It was discovered that VLC incorrectly handled memory when reading an MMS stream. An attacker […]

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Ubuntu 16.04 — dcmtk — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — dcmtk — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 June 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7010-2 Related CVEs: CVE-2021-41687 CVE-2021-41688 CVE-2021-41689 CVE-2021-41690 CVE-2022-2121 CVE-2022-43272 CVE-2024-28130 CVE-2024-34508  +5 more Upstream summary: USN-7010-1 fixed vulnerabilities in DCMTK. The update introduced a regression. This update fixes the problem. […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 12 June 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7991-1 Related CVEs: CVE-2024-9396 CVE-2024-9397 CVE-2024-9398 CVE-2024-9399 CVE-2024-9400 CVE-2024-9402 CVE-2024-9403 CVE-2024-10460  +12 more Upstream summary: Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a […]

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Ubuntu 24.04 — rust-openssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — rust-openssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 June 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7891-1 Related CVEs: CVE-2023-53159 CVE-2025-3416 CVE-2025-24898 Upstream summary: Matt Mastracci discovered that rust-openssl was incorrectly handling server lifetimes in certain functions. An attacker could possibly use this issue to cause […]

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Ubuntu 22.04 — pillow — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — pillow — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 June 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6744-1 Related CVEs: CVE-2024-28219 CVE-2023-44271 CVE-2023-50447 CVE-2022-24303 CVE-2022-45198 Upstream summary: Hugo van Kemenade discovered that Pillow was not properly performing bounds checks when processing an ICC file, which could lead […]

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Ubuntu 16.04 — org-mode — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — org-mode — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 June 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7375-1 Related CVEs: CVE-2023-28617 CVE-2024-30202 CVE-2024-30205 CVE-2024-39331 Upstream summary: It was discovered that Org Mode did not correctly handle filenames containing shell metacharacters. An attacker could possibly use this issue […]

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Ubuntu 20.04 — ubuntu-advantage-desktop-daemon — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ubuntu-advantage-desktop-daemon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 June 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7063-1 Related CVEs: CVE-2024-6388 Upstream summary: Marco Trevisan discovered that the Ubuntu Advantage Desktop Daemon leaked the Pro token to unprivileged users by passing the token as an argument in […]

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Ubuntu 16.04 — libfcgi-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libfcgi-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 June 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7527-1 Related CVEs: CVE-2025-40907 Upstream summary: It was discovered that libfcgi-perl incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash or execute arbitrary code. […]

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Ubuntu 20.04 — apache2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — apache2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 June 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7639-2 Related CVEs: CVE-2024-42516 CVE-2024-43204 CVE-2024-47252 CVE-2025-23048 CVE-2025-49630 CVE-2025-49812 CVE-2025-53020 https://launchpad.net/bugs/2119395  +12 more Upstream summary: USN-7639-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for Ubuntu 16.04 […]

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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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CHAT