CVE-2022-23588 `CHECK`-fails due to attempting to build a reference tensor in Tensorflow

Medium 6.5 Published Updated

A malicious user can cause a denial of service in TensorFlow by providing a crafted SavedModel that triggers a crash in the Grappler optimizer.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2022-23588?

CVE-2022-23588 is a medium-severity denial of service vulnerability in Google Tensorflow, published on 4 Feb 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Tensorflow is an Open Source Machine Learning Framework. A malicious user can cause a denial of service by altering a `SavedModel` such that Grappler optimizer would attempt to build a tensor using a reference `dtype`. This would result in a crash due to a `CHECK`-fail in the `Tensor` constructor as reference types are not allowed. 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.

Weakness: CWE-617

Which versions are affected by CVE-2022-23588?

22 open source packages ship an affected version, including tensorflow, tensorflow-cpu and tensorflow-gpu. It affects 1 product.

PackageAffectedFixed in
tensorflow BitnamiAll versions2.5.3, 2.6.3, 2.7.1
tensorflow PyPIAll versions2.5.3, 2.6.3, 2.7.1
tensorflow PyPIAll versions2.5.3
tensorflow PyPIAll versions2.5.3
tensorflow PyPIFrom 2.6.02.6.3
tensorflow PyPIFrom 2.6.02.6.3
16 more packages
tensorflow PyPIFrom 2.7.02.7.1
tensorflow PyPIFrom 2.7.02.7.1
tensorflow-cpu PyPIAll versions2.5.3, 2.6.3
tensorflow-cpu PyPIAll versions2.5.3
tensorflow-cpu PyPIAll versions2.5.3
tensorflow-cpu PyPIFrom 2.6.02.6.3
tensorflow-cpu PyPIFrom 2.6.02.6.3
tensorflow-cpu PyPIFrom 2.7.02.7.1
tensorflow-cpu PyPIFrom 2.7.02.7.1
tensorflow-gpu PyPIAll versions2.5.3, 2.6.3
tensorflow-gpu PyPIAll versions2.5.3
tensorflow-gpu PyPIAll versions2.5.3
tensorflow-gpu PyPIFrom 2.6.02.6.3
tensorflow-gpu PyPIFrom 2.6.02.6.3
tensorflow-gpu PyPIFrom 2.7.02.7.1
tensorflow-gpu PyPIFrom 2.7.02.7.1

Products include Google Tensorflow.

How do I fix CVE-2022-23588?

Upgrade tensorflow to a fixed version for your release line: 2.5.3, 2.6.3 or 2.7.1.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-23588 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23588 exists.

All Google Tensorflow vulnerabilities

Sources

Also known as BIT-tensorflow-2022-23588, GHSA-fx5c-h9f6-rv7c, PYSEC-2022-152, PYSEC-2022-97, PYSEC-2026-3181.

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