In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.
https://www.oracle.com/security-alerts/cpujul2022.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://github.com/pyca/cryptography/issues/5615
https://github.com/pyca/cryptography/compare/3.3.1...3.3.2
https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst