Ubuntu 16.04 — lightdm — 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-3255-1 Related CVEs: CVE-2017-7358 Upstream summary: It was discovered that LightDM incorrectly handled home directory creation for guest users. A local attacker could use this issue to gain ownership of […]