Package Management

Ubuntu 16.04 — ckeditor — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ckeditor — multiple vulnerabilities (10 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-7258-1 Related CVEs: CVE-2022-24728 CVE-2023-28439 CVE-2024-24815 CVE-2024-24816 CVE-2024-43411 CVE-2018-9861 CVE-2020-9281 CVE-2021-32809  +2 more Upstream summary: Kevin Backhouse discovered that CKEditor did not properly sanitize HTML content. An attacker could possibly […]

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Ubuntu 20.04 — abcm2ps — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — abcm2ps — 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-5961-1 Related CVEs: CVE-2018-10753 CVE-2018-10771 CVE-2019-1010069 CVE-2021-32434 CVE-2021-32435 CVE-2021-32436 Upstream summary: It was discovered that abcm2ps incorrectly handled memory when parsing specially crafted ABC files. An attacker could use this […]

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Ubuntu 18.04 — gpac — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gpac — multiple vulnerabilities (11 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-7320-1 Related CVEs: CVE-2023-5520 CVE-2024-0321 CVE-2024-0322 CVE-2018-1000100 CVE-2018-13005 CVE-2018-13006 CVE-2018-20760 CVE-2018-20761  +3 more Upstream summary: It was discovered that the GPAC MP4Box utility incorrectly handled certain AC3 files, which could […]

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Ubuntu 22.04 — civicrm — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — civicrm — 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-8242-1 Related CVEs: CVE-2023-28447 Upstream summary: Takuya Aramaki discovered that Smarty, vendored in CiviCRM, did not properly escape JavaScript code. An attacker could possibly use this issue to conduct a […]

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Ubuntu 18.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — pdfresurrect — multiple vulnerabilities (5 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-5282-1 Related CVEs: CVE-2019-14267 CVE-2019-14934 CVE-2020-20740 CVE-2020-9549 CVE-2021-3508 Upstream summary: It was discovered that PDFResurrect was incorrectly handling corrupted PDF files. An attacker could possibly use this issue to cause […]

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

Ubuntu 14.04 — usbredir — 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-5784-1 Related CVEs: CVE-2021-3700 Upstream summary: It was discovered that usbredir incorrectly handled memory when serializing large amounts of data in the case of a slow or blocked destination. An […]

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Ubuntu 22.04 — python-dynaconf — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — python-dynaconf — 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-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 18.04 — libsepol — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libsepol — 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-5391-1 Related CVEs: CVE-2021-36084 CVE-2021-36085 CVE-2021-36086 CVE-2021-36087 Upstream summary: Nicolas Iooss discovered that libsepol incorrectly handled memory when handling policies. An attacker could possibly use this issue to cause a […]

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

Ubuntu 14.04 — libmatio — 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-5185-1 Related CVEs: CVE-2019-17533 Upstream summary: It was discovered that MATIO incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service or obtain […]

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Ubuntu 18.04 — libpodofo — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libpodofo — multiple vulnerabilities (10 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-7217-1 Related CVEs: CVE-2017-5886 CVE-2018-11255 CVE-2018-12983 CVE-2018-20797 CVE-2018-5308 CVE-2018-8002 CVE-2019-10723 CVE-2020-18971  +2 more Upstream summary: It was discovered that the PoDoFo library could dereference a NULL pointer when getting the […]

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