Denial of Service in Tensorflow

MEDIO 5.3CVE-2020-15194 · BIT-tensorflow-2020-15194 · GHSA-9mqp-7v2h-2382 · Published 25/09/2020 · updated 17/06/2026

In breve

CVE-2020-15194 è una vulnerabilità MEDIO (CVSS 5.3) che riguarda tensorflow, tensorflow-cpu, tensorflow-gpu.
Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 1.0%, superiore al 63.8% delle vulnerabilità.
Correzione: aggiornare a 2.0.3, 2.1.2, 2.2.1, 2.3.1 o successiva.

Package	Affected versions	Patched versions
tensorflow PyPI	`≥ 2.0.0, < 2.0.3≥ 2.1.0, < 2.1.2≥ 2.2.0, < 2.2.1≥ 2.3.0, < 2.3.1< 1.15.4`	`2.0.32.1.22.2.12.3.11.15.4`
tensorflow-cpu PyPI	`≥ 2.0.0, < 2.0.3≥ 2.1.0, < 2.1.2≥ 2.2.0, < 2.2.1≥ 2.3.0, < 2.3.1< 1.15.4`	`2.0.32.1.22.2.12.3.11.15.4`
tensorflow-gpu PyPI	`≥ 2.0.0, < 2.0.3≥ 2.1.0, < 2.1.2≥ 2.2.0, < 2.2.1≥ 2.3.0, < 2.3.1< 1.15.4`	`2.0.32.1.22.2.12.3.11.15.4`
tensorflow google	`≥ 2.0.0, < 2.0.3≥ 2.1.0, < 2.1.2≥ 2.2.0, < 2.2.1≥ 2.3.0, < 2.3.1< 1.15.4`	`2.0.32.1.22.2.12.3.11.15.4`

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

NVD description

In Tensorflow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, the `SparseFillEmptyRowsGrad` implementation has incomplete validation of the shapes of its arguments. 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. The issue is patched in commit 390611e0d45c5793c7066110af37c8514e6a6c54, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1."