chris

Ubuntu 20.04 — amavisd-new — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — amavisd-new — 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-6790-1 Related CVEs: CVE-2024-28054 Upstream summary: It was discovered that amavisd-new incorrectly handled certain MIME email messages with multiple boundary parameters. A remote attacker could possibly use this issue to […]

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

Ubuntu 22.04 — imagemagick — 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-8263-1 Related CVEs: CVE-2026-25796 CVE-2026-25797 CVE-2026-24484 CVE-2026-25637 CVE-2026-25576 CVE-2026-25798 CVE-2026-24481 CVE-2026-25898  +12 more Upstream summary: It was discovered that ImageMagick incorrectly handled certain malformed image files in certain instances. If […]

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Ubuntu 20.04 — unrar-nonfree — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — unrar-nonfree — multiple vulnerabilities (4 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-7350-1 Related CVEs: CVE-2022-30333 CVE-2022-48579 CVE-2023-40477 CVE-2024-33899 Upstream summary: It was discovered that UnRAR incorrectly handled certain paths. If a user or automated system were tricked into extracting a specially […]

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Ubuntu 14.04 — libidn — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libidn — multiple vulnerabilities (6 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-3434-1 Related CVEs: CVE-2017-14062 CVE-2015-2059 CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 Upstream summary: It was discovered that Libidn incorrectly handled decoding certain digits. A remote attacker could use this issue to cause […]

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

Ubuntu 14.04 — heat — 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-2249-1 Related CVEs: CVE-2014-3801 Upstream summary: Jason Dunsmore discovered that OpenStack heat did not properly restrict access to template information. A remote authenticated attacker could exploit this to see URL […]

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

Ubuntu 18.04 — opencv — 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-7247-1 Related CVEs: CVE-2019-14493 CVE-2019-16249 CVE-2019-19624 CVE-2023-2617 CVE-2023-2618 CVE-2019-15939 CVE-2019-14491 CVE-2017-18009  +1 more Upstream summary: It was discovered that OpenCV did not properly manage certain XML data, leading to a […]

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Ubuntu 22.04 — libapache-mod-jk — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libapache-mod-jk — 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-6826-1 Related CVEs: CVE-2023-41081 Upstream summary: Karl von Randow discovered that mod_jk was vulnerable to an authentication bypass. If the configuration did not provide explicit mounts for all possible proxied […]

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Ubuntu 18.04 — gsl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gsl — 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-6472-1 Related CVEs: CVE-2020-35357 Upstream summary: It was discovered that GNU Scientific Library incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially […]

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

Ubuntu 24.04 — puma — 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-7031-1 Related CVEs: CVE-2024-45614 Upstream summary: It was discovered that Puma incorrectly handled parsing certain headers. A remote attacker could possibly use this issue to overwrite header values set by […]

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Ubuntu 22.04 — proftpd-dfsg — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — proftpd-dfsg — multiple vulnerabilities (3 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-7297-1 Related CVEs: CVE-2023-48795 CVE-2023-51713 CVE-2024-48651 Upstream summary: Fabian Bäumer, Marcus Brinkmann, and Jörg Schwenk discovered that the transport protocol implementation in ProFTPD had weak integrity checks. An attacker could […]

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