CVE-2021-37639 log

Severity Low
Remote No
Type Information disclosure
In TensorFlow before version 2.6.0, when restoring tensors via raw APIs, if the tensor name is not provided, TensorFlow can be tricked into dereferencing a null pointer. Alternatively, attackers can read memory outside the bounds of heap allocated data by providing some tensor names but not enough for a successful restoration. The implementation retrieves the tensor list corresponding to the tensor_name user controlled input and immediately retrieves the tensor at the restoration index (controlled via preferred_shard argument). This occurs without validating that the provided list has enough values. If the list is empty this results in dereferencing a null pointer (undefined behavior). If, however, the list has some elements, if the restoration index is outside the bounds this results in heap OOB read.
Group Package Affected Fixed Severity Status Ticket
AVG-2292 tensorflow 2.5.0-6 2.5.1-1 Critical Fixed