chris

Ubuntu 20.04 — python-pysaml2 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — python-pysaml2 — 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-5066-1 Related CVEs: CVE-2021-21239 Upstream summary: Brian Wolff discovered that PySAML2 incorrectly validated cryptographic signatures. A remote attacker could possibly use this issue to alter SAML documents. Table of contents […]

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

Ubuntu 20.04 — freeglut — 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-7870-1 Related CVEs: CVE-2024-24258 CVE-2024-24259 Upstream summary: It was discovered that Freeglut incorrectly managed memory, resulting in a memory leak. An attacker could possibly use this issue to cause a […]

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Ubuntu 24.04 — python-ldap — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — python-ldap — multiple vulnerabilities (2 CVEs) — 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-7828-1 Related CVEs: CVE-2025-61912 CVE-2025-61911 Upstream summary: It was discovered that Python LDAP incorrectly handled special characters in the special character filtering function. A remote attacker could possibly use this […]

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Ubuntu 18.04 — util-linux — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — util-linux — 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-4512-1 Related CVEs: CVE-2018-7738 Upstream summary: It was discovered that the umount bash completion script shipped in util-linux incorrectly handled certain mountpoints. If a local attacker were able to create […]

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Ubuntu 14.04 — linux-firmware — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — linux-firmware — multiple vulnerabilities (2 CVEs) — 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-3505-1 Related CVEs: CVE-2017-13080 CVE-2017-13081 Upstream summary: Mathy Vanhoef discovered that the firmware for several Intel WLAN devices incorrectly handled WPA2 in relation to Wake on WLAN. A remote attacker […]

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Ubuntu 22.04 — iperf3 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — iperf3 — multiple vulnerabilities (7 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-7970-1 Related CVEs: CVE-2025-54349 CVE-2025-54350 CVE-2023-7250 CVE-2024-53580 CVE-2024-26306 https://launchpad.net/bugs/2038654 CVE-2023-38403 Upstream summary: Jorge Sancho Larraz discovered that iperf3 did not properly manage certain inputs, which could cause the server process […]

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

Ubuntu 22.04 — logback — 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-7616-1 Related CVEs: CVE-2023-6378 CVE-2021-42550 Upstream summary: It was discovered that logback could read malicious configuration files from LDAP servers. An attacker with the required permissions could possibly use this […]

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Ubuntu 16.04 — packagekit — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — packagekit — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~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 14.04 — gerbv — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — gerbv — multiple vulnerabilities (7 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-6760-1 Related CVEs: CVE-2023-4508 CVE-2021-40391 CVE-2021-40393 CVE-2021-40394 CVE-2021-40400 CVE-2021-40401 CVE-2021-40403 Upstream summary: George-Andrei Iosif and David Fernandez Gonzalez discovered that Gerbv did not properly initialize a data structure when parsing […]

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Ubuntu 18.04 — linux-gcp-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-gcp-5.3 — multiple vulnerabilities (20 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-4440-1 Related CVEs: CVE-2019-16089 CVE-2019-19462 CVE-2019-20810 CVE-2019-20908 CVE-2020-10732 CVE-2020-10757 CVE-2020-10766 CVE-2020-10767  +12 more Upstream summary: It was discovered that the network block device (nbd) implementation in the Linux kernel did […]

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