CVE-2022-29210

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Summary

CVECVE-2022-29210
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-05-21 00:15:00 UTC
Updated2023-06-28 20:26:00 UTC
DescriptionTensorFlow is an open source platform for machine learning. In version 2.8.0, the `TensorKey` hash function used total estimated `AllocatedBytes()`, which (a) is an estimate per tensor, and (b) is a very poor hash function for constants (e.g. `int32_t`). It also tried to access individual tensor bytes through `tensor.data()` of size `AllocatedBytes()`. This led to ASAN failures because the `AllocatedBytes()` is an estimate of total bytes allocated by a tensor, including any pointed-to constructs (e.g. strings), and does not refer to contiguous bytes in the `.data()` buffer. The discoverers could not use this byte vector anyway because types such as `tstring` include pointers, whereas they needed to hash the string values themselves. This issue is patched in Tensorflow versions 2.9.0 and 2.8.1.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Google Tensorflow 2.8.0 All All All

References

ReferenceSourceLinkTags
Release TensorFlow 2.8.1 · tensorflow/tensorflow · GitHub MISC github.com
Release TensorFlow 2.9.0 · tensorflow/tensorflow · GitHub MISC github.com
Heap buffer overflow due to incorrect hash function · Advisory · tensorflow/tensorflow · GitHub CONFIRM github.com
tensorflow/tensor_key.h at f3b9bf4c3c0597563b289c0512e98d4ce81f886e · tensorflow/tensorflow · GitHub MISC github.com
Fix TensorKey hash function. · tensorflow/tensorflow@1b85a28 · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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