CVE-2021-42075

Name of the Vulnerable Software and Affected Versions Barrier versions prior to 2.3.4

Description An issue in the barriers component, which is the server-side implementation of Barrier, fails to correctly close file descriptors for established TCP connections. This allows an unauthenticated remote attacker to cause file descriptor exhaustion in the server process, leading to denial of service.

Recommendations For Barrier versions prior to 2.3.4, update to version 2.3.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the barriers component to minimize the risk of exploitation.