Vulnerability · Published Feb 4, 2022 · Assigned by GitHub_M
CVE-2022-23589Null pointer dereference in Grappler's `IsConstant` in Tensorflow
Medium 6.5
In plain English
A medium-severity null pointer dereference in tensorflow from tensorflow. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tensorflow | 2.5.3 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow | 2.6.3 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow | 2.7.1 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow | 2.5.3, 2.6.3, 2.7.1 | PYSEC-2026-3154 |
| PyPI | tensorflow-cpu | 2.6.3 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow-cpu | 2.7.1 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow-cpu | 2.5.3, 2.6.3 | PYSEC-2022-98 |
| PyPI | tensorflow-cpu | 2.5.3 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow-gpu | 2.7.1 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow-gpu | 2.5.3, 2.6.3 | PYSEC-2022-153 |
| PyPI | tensorflow-gpu | 2.5.3 | GHSA-9px9-73fg-3fqp |
| PyPI | tensorflow-gpu | 2.6.3 | GHSA-9px9-73fg-3fqp |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tensorflow | tensorflow | >= 2.7.0, < 2.7.1>= 2.6.0, < 2.6.3< 2.5.3 |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9px9-73fg-3fqp x_refsource_CONFIRM
- https://github.com/tensorflow/tensorflow/commit/045deec1cbdebb27d817008ad5df94d96a08b1bf x_refsource_MISC
- https://github.com/tensorflow/tensorflow/commit/0a365c029e437be0349c31f8d4c9926b69fa3fa1 x_refsource_MISC
- https://github.com/tensorflow/tensorflow/blob/a1320ec1eac186da1d03f033109191f715b2b130/tensorflow/core/grappler/mutable_graph_view.cc#L59-L74 x_refsource_MISC
- https://github.com/tensorflow/tensorflow/blob/a1320ec1eac186da1d03f033109191f715b2b130/tensorflow/core/grappler/optimizers/constant_folding.cc#L3466-L3497 x_refsource_MISC