TensorFlow is an end-to-end open source platform for machine learning. In affected versions the code for `tf.raw_ops.SaveV2` does not properly validate the inputs and an attacker can trigger a null pointer dereference. The [implementation](https://github.com/tensorflow/tensorflow/blob/8d72537c6abf5a44103b57b9c2e22c14f5f49698/tensorflow/core/kernels/save_restore_v2_ops.cc) uses `ValidateInputs` to check that the input arguments are valid. This validation would have caught the illegal state represented by the reproducer above. However, the validation uses `OP_REQUIRES` which translates to setting the `Status` object of the current `OpKernelContext` to an error status, followed by an empty `return` statement which just terminates the execution of the function it is present in. However, this does not mean that the kernel execution is finalized: instead, execution continues from the next line in `Compute` that follows the call to `ValidateInputs`. This is equivalent to lacking the validation. We have patched the issue in GitHub commit 9728c60e136912a12d99ca56e106b7cce7af5986. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Suse | — | Upgrade libtensorflow_framework2-gnu-hpcUpgrade libtensorflow_cc2-gnu-openmpi2-hpcUpgrade libiomp5Upgrade bazel-skylib1.0.3-sourceUpgrade libtensorflow2-gnu-hpcUpgrade tensorflow2-docUpgrade tensorflow2-lite-develUpgrade tensorflow2_2_6_0-gnu-openmpi2-hpc-docUpgrade libtensorflow2-gnu-openmpi2-hpcUpgrade tensorflow2-gnu-hpcUpgrade tensorflow2_2_6_0-gnu-hpc-develUpgrade tensorflow2Upgrade tensorflow2_2_6_0-gnu-hpcUpgrade libtensorflow_framework2-gnu-openmpi2-hpcUpgrade libiomp5-gnu-openmpi2-hpcUpgrade tensorflow2_2_6_0-gnu-openmpi2-hpc-develUpgrade libtensorflow_cc2-gnu-hpcUpgrade libtensorflow_cc2Upgrade tensorflow2-develUpgrade bazel3.7Upgrade libtensorflow2Upgrade tensorflow2-gnu-openmpi2-hpcUpgrade tensorflow2-liteUpgrade libtensorflow_framework2Upgrade libiomp5-gnu-hpcUpgrade tensorflow2_2_6_0-gnu-hpc-docUpgrade tensorflow2_2_6_0-gnu-openmpi2-hpc | Oct 26, 2022 | Aug 12, 2021 |
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