CVE-2022-23589 Null pointer dereference in Grappler's `IsConstant` in Tensorflow

Medium 6.5 Published Updated

Attackers can cause a denial of service in TensorFlow by providing a maliciously altered SavedModel file that triggers a null pointer dereference.

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-2022-23589?

CVE-2022-23589 is a medium-severity 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. Under certain scenarios, Grappler component of TensorFlow can trigger a null pointer dereference. There are 2 places where this can occur, for the same malicious alteration of a `SavedModel` file (fixing the first one would trigger the same dereference in the second place). First, during constant folding, the `GraphDef` might not have the required nodes for the binary operation. If a node is missing, the correposning `mul_*child` would be null, and the dereference in the subsequent line would be incorrect. We have a similar issue during `IsIdentityConsumingSwitch`. 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-476

Which versions are affected by CVE-2022-23589?

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-2022-23589?

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

Is CVE-2022-23589 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23589 exists.

All Google Tensorflow vulnerabilities

Sources

Also known as BIT-tensorflow-2022-23589, GHSA-9px9-73fg-3fqp, PYSEC-2022-153, PYSEC-2022-98, PYSEC-2026-3154.

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