Vulnerability · Published May 14, 2021 · Assigned by GitHub_M
CVE-2021-29601Integer overflow in TFLite concatentation
Medium 6.3
In plain English
A medium-severity integer overflow 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 9% 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. The TFLite implementation of concatenation is vulnerable to an integer overflow issue(https://github.com/tensorflow/tensorflow/blob/7b7352a724b690b11bfaae2cd54bc3907daf6285/tensorflow/lite/kernels/concatenation.cc#L70-L76). An attacker can craft a model such that the dimensions of one of the concatenation input overflow the values of `int`. TFLite uses `int` to represent tensor dimensions, whereas TF uses `int64`. Hence, valid TF models can trigger an integer overflow when converted to TFLite format. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tensorflow | 2.3.3 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow | 2.4.2 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow | 2.1.4 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-238 |
| PyPI | tensorflow | 2.2.3 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-cpu | 2.4.2 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-cpu | 2.1.4 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-cpu | 2.2.3 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-cpu | 2.3.3 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-cpu | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-529 |
| PyPI | tensorflow-gpu | 2.3.3 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-gpu | 2.4.2 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-gpu | 2.1.4 | GHSA-9c84-4hx6-xmm4 |
| PyPI | tensorflow-gpu | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-727 |
| PyPI | tensorflow-gpu | 2.2.3 | GHSA-9c84-4hx6-xmm4 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tensorflow | tensorflow | < 2.1.4>= 2.2.0, < 2.2.3>= 2.3.0, < 2.3.3>= 2.4.0, < 2.4.2 |
Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H