Open Container Initiative
The issue is related to a flaw in tracking additional container processes using the container's pid 1, which can be exploited to gain access to sensitive data, compromise data integrity, and cause a denial of service. Specifically, the vulnerability allows the main processes of the container, if running as root, to gain access to file-descriptors of new processes during initialization, potentially leading to container escapes or modification of the runC state before the process is fully placed inside the container.