Ubuntu 16.04

Ubuntu 16.04 — libxfont2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libxfont2 — 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-3500-1 Related CVEs: CVE-2017-16611 CVE-2017-13720 CVE-2017-13722 Upstream summary: It was discovered that libXfont incorrectly followed symlinks when opening font files. A local unprivileged user could use this issue to cause […]

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

Ubuntu 16.04 — rtmpdump — 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-3283-1 Related CVEs: CVE-2015-8270 CVE-2015-8271 CVE-2015-8272 Upstream summary: Dave McDaniel discovered that rtmpdump incorrectly handled certain malformed streams. If a user were tricked into processing a specially crafted stream, a […]

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Ubuntu 16.04 — storebackup — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — storebackup — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4508-1 Related CVEs: CVE-2020-7040 Upstream summary: It was discovered that StoreBackup did not properly manage lock files. A local attacker could use this issue to cause a denial of service […]

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Ubuntu 16.04 — commons-io — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — commons-io — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8191-1 Related CVEs: CVE-2024-47554 Upstream summary: It was discovered that Apache Commons IO's XmlStreamReader class could excessively consume CPU resources under certain circumstances. An attacker could possibly use this issue […]

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Ubuntu 16.04 — python-reportlab — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — python-reportlab — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4273-1 Related CVEs: CVE-2019-17626 Upstream summary: It was discovered that ReportLab incorrectly handled certain XML documents. If a user or automated system were tricked into processing a specially crafted document, […]

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Ubuntu 16.04 — raptor — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — raptor — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7868-1 Related CVEs: CVE-2017-18926 CVE-2020-25713 Upstream summary: Hanno Böck discovered that Raptor incorrectly handled memory operations when processing certain input files. An attacker could use this issue to cause Raptor […]

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Ubuntu 16.04 — sigil — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — sigil — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4085-1 Related CVEs: CVE-2019-14452 Upstream summary: Mike Salvatore discovered that Sigil mishandled certain malformed EPUB files. An attacker could use this vulnerability to write arbitrary files to the filesystem. Table […]

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Ubuntu 16.04 — policykit-desktop-privileges — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — policykit-desktop-privileges — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4037-1 Related CVEs: https://launchpad.net/bugs/1832337 Upstream summary: The policykit-desktop-privileges Startup Disk Creator policy allowed administrative users to overwrite disks. As a security improvement, this operation now requires authentication. Table of contents […]

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Ubuntu 16.04 — pam-pkcs11 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — pam-pkcs11 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7363-1 Related CVEs: CVE-2025-24032 CVE-2025-24531 Upstream summary: Marcus Rückert and Matthias Gerstner discovered that PAM-PKCS#11 did not properly handle certain return codes when authentication was not possible. An attacker could […]

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Ubuntu 16.04 — walinuxagent — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — walinuxagent — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3907-1 Related CVEs: CVE-2019-0804 Upstream summary: It was discovered that WALinuxAgent created swap files with incorrect permissions. A local attacker could possibly use this issue to obtain sensitive information from […]

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