Fix Prevention

Ubuntu 14.04 — libvirt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libvirt — multiple vulnerabilities (20 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-4047-2 Related CVEs: CVE-2019-10161 CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/MDS CVE-2018-1064 CVE-2018-3639  +12 more Upstream summary: USN-4047-1 fixed a vulnerability in libvirt. This update provides the corresponding update for Ubuntu 14.04 […]

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Ubuntu 22.04 — rustc-1.62 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — rustc-1.62 — 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-8168-1 Related CVEs: CVE-2026-33056 Upstream summary: It was discovered that tar-rs embedded in rustc incorrectly handled symlinks when unpacking a tar archive. If a user or automated system were tricked […]

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

Ubuntu 20.04 — pixman — 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-5718-1 Related CVEs: CVE-2022-44638 Upstream summary: Maddie Stone discovered that pixman incorrectly handled certain memory operations. A remote attacker could use this issue to cause pixman to crash, resulting in […]

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Ubuntu 20.04 — mariadb-10.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — mariadb-10.3 — 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-6600-1 Related CVEs: CVE-2022-47015 CVE-2023-22084 https://launchpad.net/bugs/2006882 CVE-2018-25032 CVE-2021-46669 CVE-2022-21427 CVE-2022-27376 CVE-2022-27377  +12 more Upstream summary: Several security issues were discovered in MariaDB and this update includes new upstream MariaDB versions […]

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Ubuntu 18.04 — wpa — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — wpa — multiple vulnerabilities (14 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-6945-1 Related CVEs: CVE-2024-5290 https://launchpad.net/bugs/2067613 CVE-2021-27803 CVE-2020-12695 CVE-2021-0326 CVE-2019-16275 CVE-2019-13377 CVE-2019-11555  +6 more Upstream summary: Rory McNamara discovered that wpa_supplicant could be made to load arbitrary shared objects by unprivileged […]

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Ubuntu 20.04 — zeromq3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — zeromq3 — multiple vulnerabilities (5 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-4920-1 Related CVEs: CVE-2019-13132 CVE-2020-15166 CVE-2021-20234 CVE-2021-20235 CVE-2021-20237 Upstream summary: It was discovered that ZeroMQ incorrectly handled certain application metadata. A remote attacker could use this issue to cause ZeroMQ […]

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Ubuntu 14.04 — ghostscript — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — ghostscript — multiple vulnerabilities (20 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-3915-1 Related CVEs: CVE-2019-3835 CVE-2019-3838 https://launchpad.net/bugs/1817308 https://launchpad.net/bugs/1815339 CVE-2019-6116 https://launchpad.net/bugs/1806517 CVE-2018-19409 CVE-2018-19475  +12 more Upstream summary: It was discovered that Ghostscript incorrectly handled certain PostScript files. If a user or automated […]

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Ubuntu 22.04 — grub2-signed — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — grub2-signed — multiple vulnerabilities (13 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-6410-1 Related CVEs: CVE-2023-4692 CVE-2023-4693 CVE-2022-28737 CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2021-3981 CVE-2022-28733  +5 more Upstream summary: It was discovered that a specially crafted file system image could cause a heap-based out-of-bounds […]

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

Ubuntu 20.04 — libsepol — 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-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 20.04 — mutt — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — mutt — 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-6374-1 Related CVEs: CVE-2023-4874 CVE-2023-4875 CVE-2021-32055 CVE-2022-1328 CVE-2021-3181 CVE-2020-28896 CVE-2020-14954 https://launchpad.net/bugs/1884588  +2 more Upstream summary: It was discovered that Mutt incorrectly handled certain email header contents. If a user were […]

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