Vulnerability · Published Aug 12, 2021 · Assigned by GitHub_M
CVE-2021-37676Reference binding to nullptr in shape inference in TensorFlow
High 7.8
In plain English
A high-severity security flaw in tensorflow from tensorflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause undefined behavior via binding a reference to null pointer in `tf.raw_ops.SparseFillEmptyRows`. The shape inference [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/ops/sparse_ops.cc#L608-L634) does not validate that the input arguments are not empty tensors. We have patched the issue in GitHub commit 578e634b4f1c1c684d4b4294f9e5281b2133b3ed. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tensorflow | 2.3.4, 2.4.3 | PYSEC-2021-298 |
| PyPI | tensorflow | 2.3.4 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow | 2.4.3 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow | 2.5.1 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow-cpu | 2.4.3 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow-cpu | 2.3.4, 2.4.3 | PYSEC-2021-589 |
| PyPI | tensorflow-cpu | 2.3.4 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow-cpu | 2.5.1 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow-gpu | 2.3.4, 2.4.3 | PYSEC-2021-787 |
| PyPI | tensorflow-gpu | 2.3.4 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow-gpu | 2.4.3 | GHSA-v768-w7m9-2vmm |
| PyPI | tensorflow-gpu | 2.5.1 | GHSA-v768-w7m9-2vmm |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tensorflow | tensorflow | >= 2.5.0, < 2.5.1>= 2.4.0, < 2.4.3< 2.3.4 |
Weakness: CWE-824 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H