CVE-2021-29592

Null pointer dereference in TFLite's `Reshape` operator

State: Published
Severity: 4.4 Medium
Published: May 14, 2021
Updated: Aug 3, 2024
Reserved: Mar 30, 2021

Description

TensorFlow is an end-to-end open source platform for machine learning. The fix for CVE-2020-15209(https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15209) missed the case when the target shape of `Reshape` operator is given by the elements of a 1-D tensor. As such, the fix for the vulnerability(https://github.com/tensorflow/tensorflow/blob/9c1dc920d8ffb4893d6c9d27d1f039607b326743/tensorflow/lite/core/subgraph.cc#L1062-L1074) allowed passing a null-buffer-backed tensor with a 1D shape. 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.

Scores

CVSS	Score	Vector	Source
3.1	4.4 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L	GitHub_M

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
tensorflowtensorflow	< 2.1.4Affected >= 2.2.0, < 2.2.3Affected >= 2.3.0, < 2.3.3Affected >= 2.4.0, < 2.4.2Affected

References

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