Package Management

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

Ubuntu 20.04 — modsecurity-apache — multiple vulnerabilities (5 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-7567-1 Related CVEs: CVE-2025-47947 CVE-2025-48866 CVE-2021-42717 CVE-2022-48279 CVE-2023-24021 Upstream summary: Simon Studer discovered that ModSecurity incorrectly handled certain JSON objects. An attacker could possibly use this issue to cause a […]

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Ubuntu 14.04 — tidy — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — tidy — multiple vulnerabilities (2 CVEs) — 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-2695-1 Related CVEs: CVE-2015-5522 CVE-2015-5523 Upstream summary: Fernando Muñoz discovered that HTML Tidy incorrectly handled memory. If a user or automated system were tricked into processing specially crafted data, applications […]

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

Ubuntu 20.04 — apr — 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-7038-1 Related CVEs: CVE-2023-49582 Upstream summary: Thomas Stangner discovered a permission vulnerability in the Apache Portable Runtime (APR) library. A local attacker could possibly use this issue to read named […]

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Ubuntu 16.04 — ruby-doorkeeper — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ruby-doorkeeper — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7394-1 Related CVEs: CVE-2016-6582 CVE-2018-1000088 CVE-2023-34246 Upstream summary: Jonathan Clem and Justin Bull discovered that Doorkeeper could allow arbitrary token revocation and replay attacks. An attacker could possibly use this […]

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Ubuntu 22.04 — docker.io — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — docker.io — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7474-1 Related CVEs: CVE-2023-28840 CVE-2023-28841 CVE-2023-28842 CVE-2024-23651 CVE-2024-23652 CVE-2024-36621 CVE-2024-36623 CVE-2024-41110 Upstream summary: Cory Snider discovered that Docker incorrectly handled networking packet encapsulation. An attacker could use this issue to […]

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Ubuntu 18.04 — node-browserify-sign — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — node-browserify-sign — 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-6800-1 Related CVEs: CVE-2023-46234 Upstream summary: It was discovered that browserify-sign incorrectly handled an upper bound check in signature verification. If a user or an automated system were tricked into […]

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Ubuntu 18.04 — kicad — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — kicad — multiple vulnerabilities (4 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-7466-1 Related CVEs: CVE-2022-23803 CVE-2022-23804 CVE-2022-23946 CVE-2022-23947 Upstream summary: It was discovered that KiCad incorrectly handled memory when opening malicious files. An attacker could possibly use this issue to cause […]

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Ubuntu 24.04 — pcl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — pcl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7227-1 Related CVEs: CVE-2024-53432 Upstream summary: It was discovered that PCL incorrectly handled certain malformed files. If a user or automated system were tricked into opening a specially crafted file, […]

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Ubuntu 18.04 — xapian-core — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — xapian-core — 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-3709-1 Related CVEs: CVE-2018-0499 Upstream summary: It was discovered that Xapian-core incorrectly handled certain files. An attacker could possibly use this to execute arbitrary code. Table of contents Symptom & […]

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Ubuntu 24.04 — xfpt — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — xfpt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7192-1 Related CVEs: CVE-2024-43700 Upstream summary: It was discovered that xfpt did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted file, […]

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