CVE-2021-41221

Access to invalid memory during shape inference in `Cudnn*` ops

State
Published
Severity
7.8 High
Published
Nov 5, 2021
Updated
Aug 4, 2024
Reserved
Sep 15, 2021

Read the record on cve.org

Description

TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for the `Cudnn*` operations in TensorFlow can be tricked into accessing invalid memory, via a heap buffer overflow. This occurs because the ranks of the `input`, `input_h` and `input_c` parameters are not validated, but code assumes they have certain values. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HGitHub_M

Weaknesses

  • CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

ProductVersions
tensorflowtensorflow
  • >= 2.6.0, < 2.6.1Affected
  • >= 2.5.0, < 2.5.2Affected
  • < 2.4.4Affected

References

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