CVE-2017-11176

CVE-2017-11176 is a use-after-free vulnerability in the Linux kernel's mq_notify function, affecting versions through 4.11.9, including Debian Linux. This flaw allows a local attacker to trigger a denial of service or potentially achieve privilege escalation by manipulating Netlink socket closure. With a CVSS score of 7.8 (High), it presents a significant risk due to its high impact on confidentiality, integrity, and availability, despite requiring local access and low privileges. While not listed in CISA's KEV catalog, an ExploitDB entry details a local privilege escalation exploit, and there is evidence of community discussion and media coverage, including a detailed exploitation article.