CVE-2022-35939

Description

### Impact The [`ScatterNd`](https://github.com/tensorflow/tensorflow/blob/266558ac4c1f361e9a178ee9d3f0ce2e648ae499/tensorflow/lite/kernels/internal/reference/reference_ops.h#L659-L698) function takes an input argument that determines the indices of of the output tensor. An input index greater than the output tensor or less than zero will either write content at the wrong index or trigger a crash. ### Patches We have patched the issue in GitHub commit [b4d4b4cb019bd7240a52daa4ba61e3cc814f0384](https://github.com/tensorflow/tensorflow/commit/b4d4b4cb019bd7240a52daa4ba61e3cc814f0384). The fix will be included in TensorFlow 2.10.0. We will also cherrypick this commit on TensorFlow 2.9.1, TensorFlow 2.8.1, and TensorFlow 2.7.2, as these are also affected and still in supported range. ### For more information Please consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions. ### Attribution This vulnerability has been reported by Hui Peng from Baidu Security.

How to fix CVE-2022-35939

To remediate CVE-2022-35939, upgrade the affected package to a fixed version below.

—upgrade to 2.7.2 or later
—upgrade to 2.7.2 or later
—upgrade to 2.7.2 or later
—upgrade to 2.7.2 or later

Is CVE-2022-35939 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

>= 2.7.0, < 2.7.2, >= 2.8.0, < 2.8.1, >= 2.9.0, < 2.9.1
from 0, < 2.7.2
from 0, < 2.7.2
from 0, < 2.7.2

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H