BIT-TENSORFLOW-2021-37660 Division by 0 in inplace operations in TensorFlow

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause a floating point exception by calling inplace operations with crafted arguments that would result in a division by 0. The implementation has a logic error: it should skip processing i...

BIT-TENSORFLOW-2021-37668 Division by zero in TensorFlow Lite `tf.raw_ops.UnravelIndex`

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause denial of service in applications serving models using tf.rawops.UnravelIndex by triggering a division by 0. The implementation does not check that the tensor subsumed by dims is not...

BIT-TENSORFLOW-2021-37675 Division by 0 in most convolution operators in TensorFlow

TensorFlow is an end-to-end open source platform for machine learning. In affected versions most implementations of convolution operators in TensorFlow are affected by a division by 0 vulnerability where an attacker can trigger a denial of service via a crash. The shape inference implementation i...

BIT-TENSORFLOW-2021-41196 Crash in `max_pool3d` when size argument is 0 or negative

TensorFlow is an open source platform for machine learning. In affected versions the Keras pooling layers can trigger a segfault if the size of the pool is 0 or if a dimension is negative. This is due to the TensorFlow's implementation of pooling operations where the values in the sliding window...

BIT-TENSORFLOW-2021-41200 Incomplete validation in `tf.summary.create_file_writer`

TensorFlow is an open source platform for machine learning. In affected versions if tf.summary.createfilewriter is called with non-scalar arguments code crashes due to a CHECK-fail. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow...

BIT-TENSORFLOW-2021-41201 Unitialized access in `EinsumHelper::ParseEquation`

TensorFlow is an open source platform for machine learning. In affeced versions during execution, EinsumHelper::ParseEquation is supposed to set the flags in inputhasellipsis vector and outputhasellipsis boolean to indicate whether there is ellipsis in the corresponding inputs and output. However...

BIT-TENSORFLOW-2021-41207 Division by zero in `ParallelConcat`

TensorFlow is an open source platform for machine learning. In affected versions the implementation of ParallelConcat misses some input validation and can produce a division by 0. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow...

BIT-TENSORFLOW-2021-41209 FPE in convolutions with zero size filters

TensorFlow is an open source platform for machine learning. In affected versions the implementations for convolution operators trigger a division by 0 if passed empty filter tensor arguments. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1,...

BIT-TENSORFLOW-2021-41215 Null pointer exception in `DeserializeSparse`

TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for DeserializeSparse can trigger a null pointer dereference. This is because the shape inference function assumes that the serializesparse tensor is a tensor with positive rank and having 3 ...

BIT-TENSORFLOW-2021-41216 Heap buffer overflow in `Transpose`

TensorFlow is an open source platform for machine learning. In affected versions the shape inference function for Transpose is vulnerable to a heap buffer overflow. This occurs whenever perm contains negative elements. The shape inference function does not validate that the indices in perm are al...

BIT-TENSORFLOW-2021-41217 Null pointer exception when `Exit` node is not preceded by `Enter` op

TensorFlow is an open source platform for machine learning. In affected versions the process of building the control flow graph for a TensorFlow model is vulnerable to a null pointer exception when nodes that should be paired are not. This occurs because the code assumes that the first node in th...

BIT-TENSORFLOW-2021-41218 Integer division by 0 in `tf.raw_ops.AllToAll`

TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for AllToAll can be made to execute a division by 0. This occurs whenever the splitcount argument is 0. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on...

BIT-TENSORFLOW-2021-41224 `SparseFillEmptyRows` heap OOB read

TensorFlow is an open source platform for machine learning. In affected versions the implementation of SparseFillEmptyRows can be made to trigger a heap OOB access. This occurs whenever the size of indices does not match the size of values. The fix will be included in TensorFlow 2.7.0. We will al...

BIT-TENSORFLOW-2021-41227 Arbitrary memory read in `ImmutableConst`

TensorFlow is an open source platform for machine learning. In affected versions the ImmutableConst operation in TensorFlow can be tricked into reading arbitrary memory contents. This is because the tstring TensorFlow string class has a special case for memory mapped strings but the operation...

BIT-TENSORFLOW-2022-21725 Division by zero in Tensorflow

Tensorflow is an Open Source Machine Learning Framework. The estimator for the cost of some convolution operations can be made to execute a division by 0. The function fails to check that the stride argument is strictly positive. Hence, the fix is to add a check for the stride argument to ensure ...

BIT-TENSORFLOW-2022-21728 Out of bounds read in Tensorflow

Tensorflow is an Open Source Machine Learning Framework. The implementation of shape inference for ReverseSequence does not fully validate the value of batchdim and can result in a heap OOB read. There is a check to make sure the value of batchdim does not go over the rank of the input, but there...

BIT-TENSORFLOW-2022-21729 Overflow and uncaught divide by zero in Tensorflow

Tensorflow is an Open Source Machine Learning Framework. The implementation of UnravelIndex is vulnerable to a division by zero caused by an integer overflow bug. The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlo...

BIT-TENSORFLOW-2022-21731 Type confusion leading to segfault in Tensorflow

Tensorflow is an Open Source Machine Learning Framework. The implementation of shape inference for ConcatV2 can be used to trigger a denial of service attack via a segfault caused by a type confusion. The axis argument is translated into concatdim in the ConcatShapeHelper helper function. Then, a...

BIT-TENSORFLOW-2022-21735 Division by zero in Tensorflow

Tensorflow is an Open Source Machine Learning Framework. The implementation of FractionalMaxPool can be made to crash a TensorFlow process via a division by 0. The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow...

BIT-TENSORFLOW-2022-21737 Assertion failure based denial of service in Tensorflow

Tensorflow is an Open Source Machine Learning Framework. The implementation of Bincount operations allows malicious users to cause denial of service by passing in arguments which would trigger a CHECK-fail. There are several conditions that the input arguments must satisfy. Some are not caught...