Fix Prevention

Ubuntu 24.04 — lasso — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — lasso — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7872-1 Related CVEs: CVE-2025-46784 CVE-2025-46705 CVE-2025-47151 CVE-2025-46404 Upstream summary: It was discovered that Lasso incorrectly handled certain malformed SAML responses. A remote attacker could possibly use this issue to cause […]

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Ubuntu 20.04 — openjdk-21 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — openjdk-21 — 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-8002-1 Related CVEs: CVE-2026-21945 CVE-2026-21933 CVE-2026-21932 CVE-2026-21925 CVE-2025-53057 CVE-2025-53066 CVE-2025-61748 CVE-2025-30754  +12 more Upstream summary: It was discovered that the RMI component of OpenJDK 21 would establish RMI TCP endpoint […]

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Ubuntu 14.04 — pollinate — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — pollinate — multiple vulnerabilities (3 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-2709-2 Related CVEs: https://launchpad.net/bugs/1506238 https://launchpad.net/bugs/1483762 https://launchpad.net/bugs/1381359 Upstream summary: USN-2709-1 updated pollinate's certificate for entropy.ubuntu.com but did not include a new certificate authority certificate. This update fixes the problem. We apologize […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8022-1 Related CVEs: CVE-2026-25210 CVE-2026-24515 CVE-2025-59375 CVE-2024-50602 CVE-2024-45490 CVE-2024-45491 CVE-2024-45492 CVE-2022-43680  +12 more Upstream summary: It was discovered that Expat incorrectly handled memory when parsing certain XML files. An attacker […]

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Ubuntu 14.04 — libmspack — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libmspack — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7788-1 Related CVEs: CVE-2018-14682 CVE-2017-11423 CVE-2015-4468 CVE-2018-14680 CVE-2015-4467 CVE-2018-14679 CVE-2015-4472 CVE-2015-4469  +4 more Upstream summary: Jakub Wilk discovered that libmspack did not correctly handle certain integer operations and bounds checking. […]

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Ubuntu 20.04 — openvswitch — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — openvswitch — multiple vulnerabilities (9 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-6690-1 Related CVEs: CVE-2023-3966 CVE-2023-5366 CVE-2023-1668 CVE-2022-4337 CVE-2022-4338 CVE-2021-36980 CVE-2020-35498 CVE-2015-8011  +1 more Upstream summary: Timothy Redaelli and Haresh Khandelwal discovered that Open vSwitch incorrectly handled certain crafted Geneve packets […]

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

Ubuntu 20.04 — angular.js — 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-7958-1 Related CVEs: CVE-2024-8372 CVE-2019-14863 CVE-2025-0716 CVE-2023-26117 CVE-2024-8373 CVE-2025-2336 CVE-2024-21490 CVE-2023-26116  +2 more Upstream summary: It was discovered that AngularJS did not properly sanitize certain `xlink:href` attributes. A remote attacker […]

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

Ubuntu 20.04 — vsftpd — 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-6379-1 Related CVEs: CVE-2021-3618 Upstream summary: It was discovered that vsftpd was vulnerable to the ALPACA TLS protocol content confusion attack. A remote attacker could possibly use this issue to […]

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Ubuntu 18.04 — zziplib — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — zziplib — multiple vulnerabilities (9 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-6298-1 Related CVEs: CVE-2018-7727 CVE-2020-18442 CVE-2018-6381 CVE-2018-6484 CVE-2018-6540 CVE-2018-6541 CVE-2018-6869 CVE-2018-7725  +1 more Upstream summary: Liu Zhu discovered that ZZIPlib incorrectly handled certain inputs. If a user or an automated […]

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Ubuntu 22.04 — libx11 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libx11 — multiple vulnerabilities (4 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-6407-1 Related CVEs: CVE-2023-43785 CVE-2023-43786 CVE-2023-43787 CVE-2023-3138 Upstream summary: Gregory James Duck discovered that libx11 incorrectly handled certain keyboard symbols. If a user were tricked into connecting to a malicious […]

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