TI-2021-10220 Aliases CVE-2021-29512 GHSA-4278-2v5v-65r4

Heap buffer overflow in `RaggedBinCount`

LOW 33CWE-120Published 2021-05-14 · Updated 2024-08-03

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-120 and the CVSS impact.

Summary

TensorFlow is an end-to-end open source platform for machine learning. If the `splits` argument of `RaggedBincount` does not specify a valid `SparseTensor`(https://www.tensorflow.org/api_docs/python/tf/sparse/SparseTensor), then an attacker can trigger a heap buffer overflow. This will cause a read from outside the bounds of the `splits` tensor buffer in the implementation of the `RaggedBincount` op(https://github.com/tensorflow/tensorflow/blob/8b677d79167799f71c42fd3fa074476e0295413a/tensorflow/core/kernels/bincount_op.cc#L430-L433). Before the `for` loop, `batch_idx` is set to 0. The user controls the `splits` array, making it contain only one element, 0. Thus, the code in the `while` loop would increment `batch_idx` and then try to read `splits(1)`, which is outside of bounds. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2 and TensorFlow 2.3.3, as these are also affected.

Why it matters now

EPSS 0.00211 11th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed tensorflow (tensorflow): 2.3.3, 2.4.2tensorflow (PyPI): 2.3.3, 2.4.2+2 more products

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Google	tensorflow	2.3.0 to before 2.3.3; 2.4.0 to before 2.4.2	2.3.3, 2.4.2	Patch available	CNA
—	tensorflow (PyPI)	2.3.0 to before 2.3.3	2.3.3	Patch available	GHSA-4278-2v5v-65r4
—	tensorflow (PyPI)	2.4.0 to before 2.4.2	2.4.2	Patch available	GHSA-4278-2v5v-65r4
—	tensorflow-cpu (PyPI)	2.3.0 to before 2.3.3	2.3.3	Patch available	GHSA-4278-2v5v-65r4
—	tensorflow-cpu (PyPI)	2.4.0 to before 2.4.2	2.4.2	Patch available	GHSA-4278-2v5v-65r4
—	tensorflow-gpu (PyPI)	2.3.0 to before 2.3.3	2.3.3	Patch available	GHSA-4278-2v5v-65r4
—	tensorflow-gpu (PyPI)	2.4.0 to before 2.4.2	2.4.2	Patch available	GHSA-4278-2v5v-65r4

tensorflow VendorGoogle Affected 2.3.0 to before 2.3.3; 2.4.0 to before 2.4.2 Fixed in 2.3.3, 2.4.2 Patch available CNA
tensorflow (PyPI) Vendor— Affected 2.3.0 to before 2.3.3 Fixed in 2.3.3 Patch available GHSA-4278-2v5v-65r4
tensorflow (PyPI) Vendor— Affected 2.4.0 to before 2.4.2 Fixed in 2.4.2 Patch available GHSA-4278-2v5v-65r4
tensorflow-cpu (PyPI) Vendor— Affected 2.3.0 to before 2.3.3 Fixed in 2.3.3 Patch available GHSA-4278-2v5v-65r4
tensorflow-cpu (PyPI) Vendor— Affected 2.4.0 to before 2.4.2 Fixed in 2.4.2 Patch available GHSA-4278-2v5v-65r4
tensorflow-gpu (PyPI) Vendor— Affected 2.3.0 to before 2.3.3 Fixed in 2.3.3 Patch available GHSA-4278-2v5v-65r4
tensorflow-gpu (PyPI) Vendor— Affected 2.4.0 to before 2.4.2 Fixed in 2.4.2 Patch available GHSA-4278-2v5v-65r4

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:google:tensorflow::::::::	2.3.0 to before 2.3.3; 2.4.0 to before 2.4.2	Vulnerable	Google

cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* Versions 2.3.0 to before 2.3.3; 2.4.0 to before 2.4.2 Vulnerable ·Google

Remediation

Fix · CNA tensorflow (tensorflow) Fixed in 2.3.3, 2.4.2
Fix · GHSA-4278-2v5v-65r4 tensorflow (PyPI) Fixed in 2.3.3 Advisory →
Fix · GHSA-4278-2v5v-65r4 tensorflow (PyPI) Fixed in 2.4.2 Advisory →
Fix · GHSA-4278-2v5v-65r4 tensorflow-cpu (PyPI) Fixed in 2.3.3 Advisory →
Fix · GHSA-4278-2v5v-65r4 tensorflow-cpu (PyPI) Fixed in 2.4.2 Advisory →
Fix · GHSA-4278-2v5v-65r4 tensorflow-gpu (PyPI) Fixed in 2.3.3 Advisory →
Fix · GHSA-4278-2v5v-65r4 tensorflow-gpu (PyPI) Fixed in 2.4.2 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2021-29512
2026-10-03 Alias added: GHSA-4278-2v5v-65r4

References

Other 3

TI-2022-20241 FractionalMaxPool and FractionalAVGPool heap out-of-bounds acess in Tensorflow CVSS 3.1CRITICAL 9.8
TI-2022-07640 Integer overflow in Tensorflow CVSS 3.1CRITICAL 9.8
TI-2022-07627 Out of bounds read and write in Tensorflow CVSS 3.1HIGH 8.8
TI-2022-07619 Out of bounds write in Tensorflow CVSS 3.1HIGH 8.8
TI-2022-07613 Read and Write outside of bounds in TFLite CVSS 3.1HIGH 8.8
TI-2022-07612 Integer overflow in TFLite CVSS 3.1HIGH 8.8

See all 430 →

Sources

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