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GHSA-pf36-r9c6-h97j

Invalid char to bool conversion when printing a tensor

Source: GitHub Advisory Database (reviewed) Moderate CVE-2022-41911

Packages

EcosystemPackageAffectedFixed in
PyPI tensorflow < 2.8.4 2.8.4
PyPI tensorflow-cpu >= 2.9.0, < 2.9.3 2.9.3
PyPI tensorflow-gpu >= 2.10.0, < 2.10.1 2.10.1
PyPI tensorflow >= 2.9.0, < 2.9.3 2.9.3
PyPI tensorflow >= 2.10.0, < 2.10.1 2.10.1
PyPI tensorflow-cpu < 2.8.4 2.8.4
PyPI tensorflow-gpu < 2.8.4 2.8.4
PyPI tensorflow-gpu >= 2.9.0, < 2.9.3 2.9.3
PyPI tensorflow-cpu >= 2.10.0, < 2.10.1 2.10.1

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact When [printing a tensor](https://github.com/tensorflow/tensorflow/blob/807cae8a807960fd7ac2313cde73a11fc15e7942/tensorflow/core/framework/tensor.cc#L1200-L1227), we get it's data as a `const char*` array (since that's the underlying storage) and then we typecast it to the element type. However, conversions from `char` to `bool` are undefined if the `char` is not `0` or `1`, so sanitizers/fuzzers will crash. ### Patches We have patched the issue in GitHub commit [1be743703279782a357adbf9b77dcb994fe8b508](https://github.com/tensorflow/tensorflow/commit/1be743703279782a357adbf9b77dcb994fe8b508). The fix will be included in TensorFlow 2.11.0. We will also cherrypick this commit on TensorFlow 2.10.1, TensorFlow 2.9.3, and TensorFlow 2.8.4, as these are also affected and still in supported range. ### For more information Please consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions. ### Attribution This vulnerability was discovered via internal fuzzing.

References

External links from the advisory. They lead to third-party sites.