Ubuntu 20.04

Ubuntu 20.04 — sqlite3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — sqlite3 — 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-7679-1 Related CVEs: CVE-2025-6965 CVE-2025-29088 CVE-2025-29087 CVE-2025-3277 CVE-2022-46908 CVE-2023-7104 CVE-2022-35737 CVE-2020-35525  +12 more Upstream summary: It was discovered that SQLite incorrectly handled aggregate terms. An attacker could use this issue […]

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Ubuntu 20.04 — gsasl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — gsasl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6169-1 Related CVEs: CVE-2022-2469 Upstream summary: It was discovered that GNU SASL's GSSAPI server could make an out-of-bounds reads if given specially crafted GSS-API authentication data. A remote attacker could […]

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

Ubuntu 20.04 — libreoffice — 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-7504-1 Related CVEs: CVE-2025-2866 CVE-2025-1080 CVE-2024-12425 CVE-2024-12426 CVE-2024-7788 CVE-2024-6472 CVE-2024-3044 CVE-2023-6185  +12 more Upstream summary: Juraj Šarinay discovered that LibreOffice incorrectly handled verifying PDF signatures. A remote attacker could possibly […]

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Ubuntu 20.04 — node-xmldom — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — node-xmldom — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6102-1 Related CVEs: CVE-2021-21366 CVE-2022-37616 CVE-2022-39353 Upstream summary: It was discovered that xmldom incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially […]

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Ubuntu 20.04 — sqlparse — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — sqlparse — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6064-1 Related CVEs: CVE-2023-30608 Upstream summary: It was discovered that SQL parse incorrectly handled certain regular expression. An attacker could possibly use this issue to cause a denial of service. […]

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Ubuntu 20.04 — libphp-phpmailer — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libphp-phpmailer — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5956-1 Related CVEs: CVE-2016-10033 CVE-2016-10045 CVE-2017-11503 CVE-2017-5223 CVE-2018-19296 CVE-2020-13625 CVE-2021-3603 Upstream summary: Dawid Golunski discovered that PHPMailer was not properly escaping user input data used as arguments to functions executed […]

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Ubuntu 20.04 — tigervnc — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — tigervnc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5965-1 Related CVEs: CVE-2020-26117 Upstream summary: It was discovered that TigerVNC mishandled TLS certificate exceptions. An attacker could use this vulnerability to impersonate any server after a client had added […]

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

Ubuntu 20.04 — unbound — 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-7080-1 Related CVEs: CVE-2024-8508 CVE-2024-43167 CVE-2024-43168 CVE-2024-33655 CVE-2023-50387 CVE-2023-50868 CVE-2022-3204 CVE-2022-30698  +12 more Upstream summary: Toshifumi Sakaguchi discovered that Unbound incorrectly handled name compression for large RRsets, which could lead […]

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Ubuntu 20.04 — jupyter-notebook — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — jupyter-notebook — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5585-1 Related CVEs: CVE-2018-19351 CVE-2018-21030 CVE-2019-10255 CVE-2019-10856 CVE-2019-9644 CVE-2020-26215 CVE-2022-24758 CVE-2022-29238 Upstream summary: It was discovered that Jupyter Notebook incorrectly handled certain notebooks. An attacker could possibly use this issue […]

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Ubuntu 20.04 — libvirt — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libvirt — multiple vulnerabilities (10 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-6734-1 Related CVEs: CVE-2024-1441 CVE-2024-2494 CVE-2024-2496 CVE-2020-25637 CVE-2021-3631 CVE-2021-3667 CVE-2021-3975 CVE-2021-4147  +2 more Upstream summary: Alexander Kuznetsov discovered that libvirt incorrectly handled certain API calls. An attacker could possibly use […]

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