Vulnerability · Published Aug 12, 2021 · Assigned by GitHub_M
CVE-2021-37688Null pointer dereference in TensorFlow Lite
High 7.8
In plain English
A high-severity null pointer dereference 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 6% 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 craft a TFLite model that would trigger a null pointer dereference, which would result in a crash and denial of service. The [implementation](https://github.com/tensorflow/tensorflow/blob/149562d49faa709ea80df1d99fc41d005b81082a/tensorflow/lite/kernels/internal/optimized/optimized_ops.h#L268-L285) unconditionally dereferences a pointer. We have patched the issue in GitHub commit 15691e456c7dc9bd6be203b09765b063bf4a380c. 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-2021-310 |
| PyPI | tensorflow | 2.3.4 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow | 2.4.3 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow | 2.5.1 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow-cpu | 2.4.3 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow-cpu | 2.3.4, 2.4.3 | PYSEC-2021-601 |
| PyPI | tensorflow-cpu | 2.5.1 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow-cpu | 2.3.4 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow-gpu | 2.3.4, 2.4.3 | PYSEC-2021-799 |
| PyPI | tensorflow-gpu | 2.3.4 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow-gpu | 2.4.3 | GHSA-vcjj-9vg7-vf68 |
| PyPI | tensorflow-gpu | 2.5.1 | GHSA-vcjj-9vg7-vf68 |
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-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H