7.1
CVSSv3

CVE-2021-41211

Published: 05/11/2021 Updated: 09/11/2021
CVSS v2 Base Score: 3.6 | Impact Score: 4.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.1 | Impact Score: 5.2 | Exploitability Score: 1.8
VMScore: 320
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:P

Vulnerability Summary

TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for `QuantizeV2` can trigger a read outside of bounds of heap allocated array. This occurs whenever `axis` is a negative value less than `-1`. In this case, we are accessing data before the start of a heap buffer. The code allows `axis` to be an optional argument (`s` would contain an `error::NOT_FOUND` error code). Otherwise, it assumes that `axis` is a valid index into the dimensions of the `input` tensor. If `axis` is less than `-1` then this results in a heap OOB read. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, as this version is the only one that is also affected.

Vulnerability Trend

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google tensorflow 2.6.0

Vendor Advisories

In TensorFlow before version 261, the shape inference code for QuantizeV2 can trigger a read outside of bounds of heap allocated array This occurs whenever axis is a negative value less than -1 In this case, we are accessing data before the start of a heap buffer The code allows axis to be an optional argument (s would contain an error::NOT_FO ...