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Denial of Service in Tensorflow

Moderate severity GitHub Reviewed Published Sep 24, 2020 in tensorflow/tensorflow • Updated Feb 1, 2023

Package

pip tensorflow (pip)

Affected versions

< 1.15.4
>= 2.0.0, < 2.0.3
>= 2.1.0, < 2.1.2
= 2.2.0
= 2.3.0

Patched versions

1.15.4
2.0.3
2.1.2
2.2.1
2.3.1
pip tensorflow-cpu (pip)
< 1.15.4
>= 2.0.0, < 2.0.3
>= 2.1.0, < 2.1.2
= 2.2.0
= 2.3.0
1.15.4
2.0.3
2.1.2
2.2.1
2.3.1
pip tensorflow-gpu (pip)
< 1.15.4
>= 2.0.0, < 2.0.3
>= 2.1.0, < 2.1.2
= 2.2.0
= 2.3.0
1.15.4
2.0.3
2.1.2
2.2.1
2.3.1

Description

Impact

The SparseFillEmptyRowsGrad implementation has incomplete validation of the shapes of its arguments:
https://github.com/tensorflow/tensorflow/blob/0e68f4d3295eb0281a517c3662f6698992b7b2cf/tensorflow/core/kernels/sparse_fill_empty_rows_op.cc#L235-L241

Although reverse_index_map_t and grad_values_t are accessed in a similar pattern, only reverse_index_map_t is validated to be of proper shape. Hence, malicious users can pass a bad grad_values_t to trigger an assertion failure in vec, causing denial of service in serving installations.

Patches

We have patched the issue in 390611e0d45c5793c7066110af37c8514e6a6c54 and will release a patch release for all affected versions.

We recommend users to upgrade to TensorFlow 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.

For more information

Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.

Attribution

This vulnerability is a variant of GHSA-63xm-rx5p-xvqr

References

@mihaimaruseac mihaimaruseac published to tensorflow/tensorflow Sep 24, 2020
Reviewed Sep 25, 2020
Published to the GitHub Advisory Database Sep 25, 2020
Published by the National Vulnerability Database Sep 25, 2020
Last updated Feb 1, 2023

Severity

Moderate
5.3
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVE ID

CVE-2020-15194

GHSA ID

GHSA-9mqp-7v2h-2382

Source code

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