medium6.5

CVE-2022-23579

`CHECK`-failures during Grappler's `SafeToRemoveIdentity` in Tensorflow

Impact

### Impact The Grappler optimizer in TensorFlow can be used to cause a denial of service by altering a `SavedModel` such that [`SafeToRemoveIdentity`](https://github.com/tensorflow/tensorflow/blob/a1320ec1eac186da1d03f033109191f715b2b130/tensorflow/core/grappler/optimizers/dependency_optimizer.cc#L59-L98) would trigger `CHECK` failures. ### Patches We have patched the issue in GitHub commit [92dba16749fae36c246bec3f9ba474d9ddeb7662](https://github.com/tensorflow/tensorflow/commit/92dba16749fae36c246bec3f9ba474d9ddeb7662). 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 2.5.3, 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.

Affected packages

Ecosystem	Package	Affected	Fixed in
pip	`tensorflow`	< 2.5.3	2.5.3
pip	`tensorflow-cpu`	< 2.5.3	2.5.3
pip	`tensorflow-gpu`	< 2.5.3	2.5.3

Affected products

Vendor	Product	Affected versions
Google	Tensorflow	through 2.5.2 from 2.6.0 through 2.6.2 Version 2.7.0

Weakness classification

CWE-617

Impact

Affected packages

Affected products

Weakness classification

References