The provided commit diff and vulnerability details focus on enforcing password length and related configurations, which address CVE-2022-3179 (password length) but do not directly show changes to error handling. The CVE-2022-3175 (missing custom error page) likely involves changes to error page configuration (e.g., overriding default CherryPy error handlers), but the specific code changes for this are not visible in the provided commit diff. Without explicit evidence of the error handling functions modified in the patch, identifying vulnerable functions with high confidence is not possible.