ubuntu

Ubuntu 18.04 — devscripts — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — devscripts — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3704-1 Related CVEs: CVE-2018-13043 Upstream summary: It was discovered that devscripts incorrectly handled certain YAML files. An attacker could possibly use this to execute arbitrary code. Table of contents Symptom […]

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Ubuntu 18.04 — percona-xtrabackup — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — percona-xtrabackup — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6745-1 Related CVEs: CVE-2022-25834 Upstream summary: It was discovered that in Percona XtraBackup, a local crafted filename could trigger arbitrary code execution. Table of contents Symptom & Impact Environment & […]

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Ubuntu 22.04 — php-cas — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — php-cas — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6913-1 Related CVEs: CVE-2022-39369 Upstream summary: Filip Hejsek discovered that phpCAS was using HTTP headers to determine the service URL used to validate tickets. A remote attacker could possibly use […]

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Ubuntu 20.04 — ruby-saml — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ruby-saml — multiple vulnerabilities (6 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-7409-1 Related CVEs: CVE-2025-25291 CVE-2025-25292 CVE-2025-25293 CVE-2016-5697 CVE-2017-11428 CVE-2024-45409 Upstream summary: It was discovered that ruby-saml did not correctly handle XML parsing. An attacker could possibly use this issue to […]

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Ubuntu 14.04 — cgmanager — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — cgmanager — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-2451-1 Related CVEs: CVE-2014-1425 Upstream summary: Serge Hallyn discovered that cgmanager did not consistently enforce proper nesting when modifying cgroup properties. A local attacker in a privileged container could use […]

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Ubuntu 20.04 — org-mode — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — org-mode — multiple vulnerabilities (4 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-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 14.04 — lua5.1 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — lua5.1 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-2338-1 Related CVEs: CVE-2014-5461 Upstream summary: It was discovered that Lua incorrectly handled certain vararg functions with a large number of fixed parameters. An attacker could use this issue to […]

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Ubuntu 18.04 — freetype — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — freetype — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7352-2 Related CVEs: CVE-2022-27406 CVE-2025-27363 CVE-2022-27404 CVE-2022-27405 CVE-2022-31782 CVE-2020-15999 Upstream summary: USN-7352-1 fixed a vulnerability in FreeType. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 […]

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Ubuntu 14.04 — optipng — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — optipng — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3495-1 Related CVEs: CVE-2017-1000229 CVE-2015-7801 CVE-2015-7802 CVE-2016-2191 CVE-2016-3981 CVE-2016-3982 Upstream summary: It was discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted […]

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Ubuntu 22.04 — nginx — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — nginx — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8271-1 Related CVEs: CVE-2026-42945 CVE-2026-28753 CVE-2026-28755 CVE-2026-32647 CVE-2026-27651 CVE-2026-27784 CVE-2026-27654 CVE-2026-1642  +7 more Upstream summary: It was discovered that the nginx ngx_http_rewrite_module component incorrectly handled certain rewrite directives. A remote […]

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