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Ubuntu 18.04 — flatpak — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — flatpak — multiple vulnerabilities (3 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-5191-1 Related CVEs: CVE-2021-41133 CVE-2021-21381 CVE-2021-21261 Upstream summary: It was discovered that Flatpak incorrectly handled certain AF_UNIX sockets. An attacker could use this to specially craft a Flatpak application that […]

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Ubuntu 24.04 — python-dynaconf — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — python-dynaconf — 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-8231-1 Related CVEs: CVE-2026-33154 Upstream summary: It was discovered that Dynaconf was incorrectly handling template evaluation in its string resolvers. A remote attacker could possibly use this issue to execute […]

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Ubuntu 20.04 — jupyter-notebook — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — jupyter-notebook — multiple vulnerabilities (8 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-5585-1 Related CVEs: CVE-2018-19351 CVE-2018-21030 CVE-2019-10255 CVE-2019-10856 CVE-2019-9644 CVE-2020-26215 CVE-2022-24758 CVE-2022-29238 Upstream summary: It was discovered that Jupyter Notebook incorrectly handled certain notebooks. An attacker could possibly use this issue […]

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Ubuntu 18.04 — ldns — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — ldns — multiple vulnerabilities (2 CVEs) — 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-5257-1 Related CVEs: CVE-2020-19860 CVE-2020-19861 Upstream summary: It was discovered that ldns incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information. (CVE-2020-19860, CVE-2020-19861) Table […]

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Ubuntu 22.04 — rapidjson — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — rapidjson — multiple vulnerabilities (2 CVEs) — 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-8189-1 Related CVEs: CVE-2024-39684 CVE-2024-38517 Upstream summary: It was discovered that RapidJSON did not properly protect against integer overflows in certain instances when parsing JSON text. A remote attacker could […]

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Ubuntu 18.04 — golang-1.18 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — golang-1.18 — 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-7109-1 Related CVEs: CVE-2022-41723 CVE-2022-41724 CVE-2022-41725 CVE-2023-24531 CVE-2023-24536 CVE-2023-29402 CVE-2023-29403 CVE-2023-29404  +12 more Upstream summary: Philippe Antoine discovered that Go incorrectly handled crafted HTTP/2 streams. An attacker could possibly use […]

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Ubuntu 22.04 — dotnet7 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — dotnet7 — multiple vulnerabilities (20 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-6773-1 Related CVEs: CVE-2024-30045 CVE-2024-30046 CVE-2024-21392 CVE-2024-21386 CVE-2024-21404 CVE-2024-0057 CVE-2024-21319 CVE-2023-36049  +12 more Upstream summary: It was discovered that .NET did not properly handle memory in it's Double Parse routine. […]

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Ubuntu 16.04 — bind9 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — bind9 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6909-3 Related CVEs: CVE-2024-1737 CVE-2024-1975 CVE-2023-50387 CVE-2023-50868 CVE-2023-3341 CVE-2023-2828 CVE-2016-2775 CVE-2016-6170  +12 more Upstream summary: USN-6909-1 fixed vulnerabilities in Bind. This update provides the corresponding updates for Ubuntu 16.04 LTS. […]

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Ubuntu 14.04 — xz-utils — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — xz-utils — 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-5378-3 Related CVEs: CVE-2022-1271 Upstream summary: USN-5378-2 fixed a vulnerability in XZ Utils. This update provides the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM. Original advisory details: Cleemy […]

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

Ubuntu 20.04 — libksba — multiple vulnerabilities (2 CVEs) — 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-5787-1 Related CVEs: CVE-2022-47629 CVE-2022-3515 Upstream summary: It was discovered that Libksba incorrectly handled parsing CRL signatures. A remote attacker could use this issue to cause Libksba to crash, resulting […]

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