Fix Prevention

Ubuntu 22.04 — python-authlib — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — python-authlib — multiple vulnerabilities (5 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-8065-1 Related CVEs: CVE-2025-62706 CVE-2025-68158 CVE-2025-59420 CVE-2024-37568 CVE-2025-61920 Upstream summary: Millie Solem discovered that Authlib did not properly restrict algorithm selection during JWT verification, allowing HMAC verification with asymmetric public […]

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Ubuntu 20.04 — packagekit — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — packagekit — multiple vulnerabilities (3 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-8195-3 Related CVEs: CVE-2026-41651 CVE-2020-16121 CVE-2020-16122 Upstream summary: USN-8195-1 fixed a vulnerability in PackageKit. This update provides the corresponding fix to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 […]

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

Ubuntu 20.04 — ntp — 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-5175-1 Related CVEs: CVE-2020-15025 CVE-2019-8936 Upstream summary: It was discovered that ntpd incorrectly handled memory when CMAC keys were used. A remote attacker could possibly use this issue to cause […]

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

Ubuntu 22.04 — dnsdist — 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-8037-1 Related CVEs: CVE-2025-30193 CVE-2025-30187 CVE-2025-8671 Upstream summary: It was discovered that HTTP/2, which is used/vendored by DNSdist, did not properly account for resources when handling client-triggered stream resets. An […]

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Ubuntu 20.04 — glance — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — glance — multiple vulnerabilities (3 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-8199-1 Related CVEs: CVE-2026-34881 CVE-2024-32498 CVE-2022-47951 Upstream summary: Martin Kaesberger discovered that OpenStack Glance's image processing could return the contents of arbitrary files. An attacker could possibly use this issue […]

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Ubuntu 16.04 — libxkbcommon — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libxkbcommon — multiple vulnerabilities (11 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-3786-1 Related CVEs: CVE-2018-15853 CVE-2018-15854 CVE-2018-15855 CVE-2018-15856 CVE-2018-15857 CVE-2018-15858 CVE-2018-15859 CVE-2018-15861  +3 more Upstream summary: It was discovered that libxkbcommon incorrectly handled certain files. An attacker could possibly use this […]

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

Ubuntu 18.04 — undertow — 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-8144-1 Related CVEs: CVE-2025-12543 Upstream summary: It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain […]

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Ubuntu 20.04 — lua-bitop — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — lua-bitop — multiple vulnerabilities (3 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-8169-1 Related CVEs: CVE-2025-49844 CVE-2022-24834 CVE-2024-31449 Upstream summary: It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use this issue to cause […]

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

Ubuntu 16.04 — oxide-qt — 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-3236-1 Related CVEs: CVE-2017-5029 CVE-2017-5030 CVE-2017-5031 CVE-2017-5033 CVE-2017-5035 CVE-2017-5037 CVE-2017-5040 CVE-2017-5041  +12 more Upstream summary: Multiple vulnerabilities were discovered in Chromium. If a user were tricked in to opening a […]

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Ubuntu 24.04 — libyaml-syck-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — libyaml-syck-perl — 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-7844-1 Related CVEs: CVE-2025-11683 Upstream summary: It was discovered that YAML::Syck did not properly handle parsing YAML files. An attacker could possibly use this issue to expose sensitive information. Table […]

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