Heap buffer overflow in Tensorflow

ALTO 8.8CVE-2020-15195 · BIT-tensorflow-2020-15195 · GHSA-63xm-rx5p-xvqr · Published 25/09/2020 · updated 17/06/2026

En resumen

CVE-2020-15195 es una vulnerabilidad ALTO (CVSS 8.8) que afecta a tensorflow, tensorflow-cpu, tensorflow-gpu.
Probabilidad de explotación en los próximos 30 días (EPSS): 0.95%, mayor que el 61.5% de las vulnerabilidades.
Solución: actualizar a 2.0.3, 2.1.2, 2.2.1, 2.3.1 o posterior.

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 implementation of SparseFillEmptyRowsGrad uses a double indexing pattern: https://github.com/tensorflow/tensorflow/blob/0e68f4d3295eb0281a517c3662f6698992b7b2cf/tensorflow/core/kernels/sparse_fill_empty_rows_op.cc#L263-L269

It is possible for reverse_index_map(i) to be an index outside of bounds of grad_values, thus resulting in a heap buffer overflow.

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 has been reported by members of the Aivul Team from Qihoo 360.

NVD description

In Tensorflow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, the implementation of `SparseFillEmptyRowsGrad` uses a double indexing pattern. It is possible for `reverse_index_map(i)` to be an index outside of bounds of `grad_values`, thus resulting in a heap buffer overflow. 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.