CVE-2021-29577

critical
Published 2021-05-21 · Modified 2023-12-06
CVSS v3
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v2
VIR risk
9.5

Description

TensorFlow is an end-to-end open source platform for machine learning. The implementation of `tf.raw_ops.AvgPool3DGrad` is vulnerable to a heap buffer overflow. The implementation(https://github.com/tensorflow/tensorflow/blob/d80ffba9702dc19d1fac74fc4b766b3fa1ee976b/tensorflow/core/kernels/pooling_ops_3d.cc#L376-L450) assumes that the `orig_input_shape` and `grad` tensors have similar first and last dimensions but does not check that this assumption is validated. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29577

OS impact

OSVersionStatusFixed in
arch archfixed2.5.0-1
debian debianforkyfixed0
debian debiansidfixed0

Package impact

EcosystemPackageVulnerableFixed
python PyPItensorflow<2.1.42.1.4
python PyPItensorflow>=2.2.0,<2.2.32.2.3
python PyPItensorflow>=2.3.0,<2.3.32.3.3
python PyPItensorflow>=2.4.0,<2.4.22.4.2
python PyPItensorflow-cpu<2.1.42.1.4
python PyPItensorflow-cpu>=2.2.0,<2.2.32.2.3
python PyPItensorflow-cpu>=2.3.0,<2.3.32.3.3
python PyPItensorflow-cpu>=2.4.0,<2.4.22.4.2
python PyPItensorflow-gpu<2.1.42.1.4
python PyPItensorflow-gpu>=2.2.0,<2.2.32.2.3
python PyPItensorflow-gpu>=2.3.0,<2.3.32.3.3
python PyPItensorflow-gpu>=2.4.0,<2.4.22.4.2
python PyPItensorflow<6fc9141f42f6a72180ecd24021c3e6b36165fe0d||>=2.4.0,<2.4.26fc9141f42f6a72180ecd24021c3e6b36165fe0d
python PyPItensorflow-cpu<6fc9141f42f6a72180ecd24021c3e6b36165fe0d||>=2.4.0,<2.4.26fc9141f42f6a72180ecd24021c3e6b36165fe0d
python PyPItensorflow-gpu<6fc9141f42f6a72180ecd24021c3e6b36165fe0d||>=2.4.0,<2.4.26fc9141f42f6a72180ecd24021c3e6b36165fe0d

References

Verify integrity in audit chain (admin only). AS-IS.