archive_read_format_rar_has_encrypted_entries(struct archive_read *_a)
{
	if (_a && _a->format) {
		struct rar * rar = (struct rar *)_a->format->data;
		if (rar) {
			return rar->has_encrypted_entries;
		}
	}
	return ARCHIVE_READ_FORMAT_ENCRYPTION_DONT_KNOW;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.