Fix Prevention

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

Ubuntu 24.04 — postfixadmin — 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-8242-2 Related CVEs: CVE-2023-28447 Upstream summary: USN-8242-1 fixed a vulnerability in CiviCRM. This update provides the corresponding fix for PostfixAdmin. Original advisory details: Takuya Aramaki discovered that Smarty, vendored in […]

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

Ubuntu 22.04 — virtuoso-opensource — 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-6879-1 Related CVEs: CVE-2023-31620 CVE-2023-31622 CVE-2023-31624 CVE-2023-31626 CVE-2023-31627 CVE-2023-31629 CVE-2023-31630 CVE-2023-31631  +12 more Upstream summary: Jingzhou Fu discovered that Virtuoso Open-Source Edition incorrectly handled certain crafted SQL statements. An attacker […]

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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 14.04 — grub2-signed — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — grub2-signed — multiple vulnerabilities (10 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-4432-2 Related CVEs: https://launchpad.net/bugs/1889556 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15705  +2 more Upstream summary: USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for […]

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

Ubuntu 22.04 — kvmtool — 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-8172-1 Related CVEs: CVE-2023-2861 CVE-2021-45464 Upstream summary: It was discovered that kvmtool did not properly manage memory under certain circumstances. A malicious guest attacker could use this issue to cause […]

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Ubuntu 20.04 — nvidia-graphics-drivers-510 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — nvidia-graphics-drivers-510 — 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-5547-1 Related CVEs: CVE-2022-31607 CVE-2022-31608 CVE-2022-31615 CVE-2022-21813 CVE-2022-21814 Upstream summary: Le Wu discovered that the NVIDIA graphics drivers did not properly perform input validation in some situations. A local user […]

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

Ubuntu 20.04 — libvirt — 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-6734-1 Related CVEs: CVE-2024-1441 CVE-2024-2494 CVE-2024-2496 CVE-2020-25637 CVE-2021-3631 CVE-2021-3667 CVE-2021-3975 CVE-2021-4147  +2 more Upstream summary: Alexander Kuznetsov discovered that libvirt incorrectly handled certain API calls. An attacker could possibly use […]

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Ubuntu 16.04 — libde265 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libde265 — 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-6764-1 Related CVEs: CVE-2023-51792 CVE-2023-27102 CVE-2023-27103 CVE-2023-43887 CVE-2023-47471 CVE-2023-49465 CVE-2023-49467 CVE-2023-49468  +12 more Upstream summary: It was discovered that libde265 could be made to allocate memory that exceeds the maximum […]

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

Ubuntu 24.04 — wheel — 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-8221-1 Related CVEs: CVE-2026-24049 Upstream summary: It was discovered that wheel did not correctly handle certain file paths. If a user or automated system were tricked into opening a specially […]

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Ubuntu 14.04 — openjdk-7 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — openjdk-7 — 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-3942-1 Related CVEs: CVE-2019-2422 CVE-2018-3136 CVE-2018-3139 CVE-2018-3149 CVE-2018-3169 CVE-2018-3180 CVE-2018-2952 CVE-2018-2790  +12 more Upstream summary: It was discovered that a memory disclosure issue existed in the OpenJDK Library subsystem. An […]

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CHAT