A potential vulnerability was reported in some Lenovo Tablets that could allow a local authenticated user or application to gain access to sensitive device specific information.
Update to the version (or newer) indicated for your model in the Product Impact section in the advisory: https://support.lenovo.com/us/en/product_security/LEN-202383
See details on updating your Lenovo Android device here https://pcsupport.lenovo.com/us/en/solutions/ht117027 .
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Lenovo thanks Tim Schumacher for reporting this issue.