Improper Resource Shutdown or Release
Python Cryptographic Authority pyopenssl fails to release memory before removing last reference in PKCS #12 Store that can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything that would cause the calling application to reload certificates from a PKCS #12 store.
CWE-404 - Improper Resource Shutdown or Release
The program does not release or incorrectly releases a resource before it is made available for re-use.