Ubuntu 16.04

Ubuntu 16.04 — dns-root-data — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — dns-root-data — 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-3715-1 Related CVEs: https://launchpad.net/bugs/1721129 Upstream summary: This update adds the latest DNSSEC validation trust anchor required for the upcoming Root Zone KSK Rollover and refreshes the list of root hints. […]

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

Ubuntu 16.04 — sssd — 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-3526-1 Related CVEs: CVE-2017-12173 Upstream summary: It was discovered that SSSD incorrectly handled certain inputs when querying its local cache. An attacker could use this to inject arbitrary code and […]

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

Ubuntu 16.04 — keystone — 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-3448-1 Related CVEs: CVE-2017-2673 Upstream summary: Boris Bobrov discovered that OpenStack Keystone incorrectly handled federation mapping when there are rules in which group-based assignments are not used. A remote authenticated […]

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

Ubuntu 16.04 — ubufox — 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-3391-2 Related CVEs: https://launchpad.net/bugs/1711137 Upstream summary: USN-3391-1 fixed vulnerabilities in Firefox. This update provides the corresponding update for Ubufox. Original advisory details: Multiple security issues were discovered in Firefox. If […]

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

Ubuntu 16.04 — eject — 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-3246-1 Related CVEs: CVE-2017-6964 Upstream summary: Ilja Van Sprundel discovered that dmcrypt-get-device incorrectly checked setuid and setgid return values. A local attacker could use this issue to execute code as […]

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Ubuntu 16.04 — pypdf2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — pypdf2 — 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-6280-1 Related CVEs: CVE-2023-36810 CVE-2022-24859 Upstream summary: It was discovered that PyPDF2 incorrectly handled PDF files with certain markers. If a user or automated system were tricked into processing a […]

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

Ubuntu 16.04 — dosfstools — 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-2986-1 Related CVEs: CVE-2015-8872 CVE-2016-4804 Upstream summary: Hanno Böck discovered that dosfstools incorrectly handled certain malformed filesystems. A local attacker could use this issue to cause dosfstools to crash, resulting […]

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

Ubuntu 16.04 — usbredir — 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-5784-1 Related CVEs: CVE-2021-3700 Upstream summary: It was discovered that usbredir incorrectly handled memory when serializing large amounts of data in the case of a slow or blocked destination. An […]

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

Ubuntu 16.04 — schroot — 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-5584-1 Related CVEs: CVE-2022-2787 Upstream summary: It was discovered that Schroot incorrectly handled certain Schroot names. An attacker could possibly use this issue to break schroot's internal state causing a […]

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Ubuntu 16.04 — apache-log4j1.2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — apache-log4j1.2 — multiple vulnerabilities (5 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-5998-1 Related CVEs: CVE-2022-23302 CVE-2022-23305 CVE-2022-23307 CVE-2019-17571 CVE-2021-4104 Upstream summary: It was discovered that the SocketServer component of Apache Log4j 1.2 incorrectly handled deserialization. An attacker could possibly use this […]

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