CVE-2021-3759: Debian Linux
Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.
A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.
Affected products
Published 2022-08-23. Last modified 2026-06-17.