CVE-2017-18270

CVE-2017-18270 describes a local privilege escalation vulnerability in the Linux kernel prior to version 4.13.5. A local attacker could exploit this flaw by using keyctl commands to create keyrings for other users, potentially leading to unwanted default settings or a denial of service. With a CVSS score of 7.1 (High), this vulnerability is easily exploitable locally with low attack complexity, allowing for high impact on integrity and availability. Currently, there is no evidence of active exploitation, and no public exploit code or significant community discussion has been identified.