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CVE-2021-3759

Description

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.

POC

Reference

- https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive@gmail.com/

Github

- https://github.com/ARPSyndicate/cvemon