TensorFlow is an end-to-end open source platform for machine learning. In affected versions the implementation of `tf.raw_ops.StringNGrams` is vulnerable to an integer overflow issue caused by converting a signed integer value to an unsigned one and then allocating memory based on this value. The [implementation](https://github.com/tensorflow/tensorflow/blob/8d72537c6abf5a44103b57b9c2e22c14f5f49698/tensorflow/core/kernels/string_ngrams_op.cc#L184) calls `reserve` on a `tstring` with a value that sometimes can be negative if user supplies negative `ngram_widths`. The `reserve` method calls `TF_TString_Reserve` which has an `unsigned long` argument for the size of the buffer. Hence, the implicit conversion transforms the negative value to a large integer. We have patched the issue in GitHub commit c283e542a3f422420cfdb332414543b62fc4e4a5. 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: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Suse | — | Upgrade tensorflow2-lite-develUpgrade tensorflow2-docUpgrade libiomp5-gnu-openmpi2-hpcUpgrade tensorflow2_2_6_0-gnu-hpcUpgrade libtensorflow_framework2-gnu-openmpi2-hpcUpgrade libtensorflow_cc2Upgrade bazel-skylib1.0.3-sourceUpgrade tensorflow2_2_6_0-gnu-hpc-develUpgrade libiomp5Upgrade tensorflow2-liteUpgrade bazel3.7Upgrade tensorflow2Upgrade libtensorflow_cc2-gnu-openmpi2-hpcUpgrade libtensorflow2-gnu-openmpi2-hpcUpgrade libtensorflow_cc2-gnu-hpcUpgrade tensorflow2_2_6_0-gnu-openmpi2-hpc-develUpgrade libtensorflow_framework2-gnu-hpcUpgrade libtensorflow2-gnu-hpcUpgrade libiomp5-gnu-hpcUpgrade libtensorflow_framework2Upgrade tensorflow2_2_6_0-gnu-hpc-docUpgrade tensorflow2-gnu-openmpi2-hpcUpgrade tensorflow2-gnu-hpcUpgrade tensorflow2-develUpgrade tensorflow2_2_6_0-gnu-openmpi2-hpc-docUpgrade tensorflow2_2_6_0-gnu-openmpi2-hpcUpgrade libtensorflow2 | Oct 26, 2022 | Aug 12, 2021 |
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