Security Hardening

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8169-1 Related CVEs: CVE-2025-49844 CVE-2022-24834 CVE-2024-31449 CVE-2024-31228 CVE-2024-46981 CVE-2024-51741 CVE-2022-35977 CVE-2022-36021  +12 more Upstream summary: It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could […]

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8135-1 Related CVEs: CVE-2023-50447 CVE-2021-28675 CVE-2021-25290 CVE-2021-25288 CVE-2021-28676 CVE-2023-44271 CVE-2021-28677 CVE-2021-25287  +12 more Upstream summary: It was discovered that Pillow did not correctly handle reading J2K files, which could lead to […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6334-1 Related CVEs: CVE-2020-6097 CVE-2021-41054 CVE-2021-46671 CVE-2019-11365 CVE-2019-11366 Upstream summary: Peter Wang discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp request […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6448-1 Related CVEs: CVE-2023-32307 CVE-2022-31001 CVE-2022-31002 CVE-2022-31003 CVE-2022-47516 CVE-2023-22741 Upstream summary: Xu Biang discovered that Sofia-SIP did not properly manage memory when handling STUN packets. An attacker could use this issue […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 24.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7633-1 Related CVEs: CVE-2024-38531 CVE-2024-27297 CVE-2024-47174 CVE-2024-45593 Upstream summary: Linus Heckemann discovered that Nix did not correctly handle certain binaries. An attacker could possibly use this issue to execute arbitrary code. […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6629-2 Related CVEs: CVE-2021-45958 CVE-2022-31116 CVE-2022-31117 Upstream summary: USN-6629-1 fixed vulnerabilities in UltraJSON. This update provides the corresponding updates for Ubuntu 20.04 LTS. Original advisory details: It was discovered that UltraJSON […]

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5953-1 Related CVEs: CVE-2015-5607 CVE-2022-21699 Upstream summary: It was discovered that IPython incorrectly processed REST API POST requests. An attacker could possibly use this issue to launch a cross-site request forgery […]

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7952-1 Related CVEs: CVE-2024-25269 CVE-2025-68431 CVE-2019-11471 CVE-2020-23109 CVE-2023-0996 CVE-2023-29659 CVE-2023-49460 CVE-2023-49462  +2 more Upstream summary: It was discovered that libheif did not correctly handle certain memory operations. An attacker could possibly […]

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-2303-1 Related CVEs: https://launchpad.net/bugs/1349128 https://launchpad.net/bugs/1314247 https://launchpad.net/bugs/1313885 https://launchpad.net/bugs/1308850 Upstream summary: It was discovered that in certain circumstances Unity failed to successfully grab the keyboard when switching to the lock screen. A local […]

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7273-1 Related CVEs: CVE-2021-4156 CVE-2024-50612 CVE-2022-33065 CVE-2021-3246 CVE-2017-12562 CVE-2017-14245 CVE-2017-14246 CVE-2017-14634  +12 more Upstream summary: It was discovered that libsndfile incorrectly handled memory when executing its FLAC codec. If a user […]