Ubuntu 20.04

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

Ubuntu 20.04 — containerd-app — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 July 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7983-1 Related CVEs: CVE-2025-64329 CVE-2024-25621 CVE-2024-40635 Upstream summary: David Leadbeater discovered that containerd incorrectly set certain directory path permissions. An attacker could possibly use this issue to achieve unauthorised access […]

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

Ubuntu 20.04 — puma — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 4 July 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7031-2 Related CVEs: CVE-2024-45614 CVE-2020-11076 CVE-2020-11077 CVE-2022-23634 CVE-2022-24790 CVE-2023-40175 CVE-2024-21647 Upstream summary: USN-7031-1 fixed CVE-2024-45614 in Puma for Ubuntu 24.04 LTS. This update fixes the CVE for Ubuntu 22.04 LTS […]

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

Ubuntu 20.04 — libndp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 July 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6830-1 Related CVEs: CVE-2024-5564 Upstream summary: It was discovered that libndp incorrectly handled certain malformed IPv6 router advertisement packets. A local attacker could use this issue to cause NetworkManager to […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 22 June 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7334-1 Related CVEs: CVE-2025-1931 CVE-2025-1932 CVE-2025-1933 CVE-2025-1934 CVE-2025-1935 CVE-2025-1936 CVE-2025-1937 CVE-2025-1942  +12 more Upstream summary: Multiple security issues were discovered in Firefox. If a user were tricked into opening a […]

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Ubuntu 20.04 — quagga — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — quagga — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 June 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7017-1 Related CVEs: CVE-2024-44070 CVE-2022-37032 CVE-2023-46753 CVE-2023-41358 CVE-2023-41360 Upstream summary: Iggy Frankovic discovered that Quagga incorrectly handled certain BGP messages. A remote attacker could possibly use this issue to cause […]

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Ubuntu 20.04 — python-xmltodict — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — python-xmltodict — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 June 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7753-1 Related CVEs: CVE-2025-9375 Upstream summary: Camilo Vera discovered that xmltodict parsed maliciously crafted XML input, contrary to expectations. An attacker could possibly use this issue to cause a denial […]

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

Ubuntu 20.04 — lua-bitop — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 June 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8169-1 Related CVEs: CVE-2025-49844 CVE-2022-24834 CVE-2024-31449 Upstream summary: It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use this issue to cause […]

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How to Rewrite URLs with mod_rewrite for Apache on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How to Rewrite URLs with mod_rewrite for Apache on Ubuntu 20.04

Apache’s mod_rewrite module lets you redirect URLs based on additional conditions, or rewrite URLs in a cleaner fashion, translating human-readable paths into code-friendly query string. In this tutorial, you’ll enable `mod_rewrite` and use `.htaccess` files to create a basic URL redirection, and then explore a couple of advanced use cases.

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Cómo agregar espacio de intercambio en Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cómo agregar espacio de intercambio en Ubuntu 20.04

Una opción para evitar errores de memoria insuficiente en aplicaciones es agregar espacio de intercambio a su servidor. En esta guía, abordaremos la manera de añadir un archivo de intercambio a un servidor Ubuntu 20.04. <$>[warning] Advertencia: Si bien, en general, el…

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Ubuntu 20.04 — git-lfs — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — git-lfs — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 June 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7977-1 Related CVEs: CVE-2024-53263 CVE-2025-26625 Upstream summary: Ryota K discovered that Git LFS may leak login credentials in certain instances due to failing to check for URL-encoded characters. An attacker […]

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