TI-2021-15512 Aliases CVE-2021-37637 GHSA-c9qf-r67m-p7cg

Null pointer dereference in `CompressElement` in TensorFlow

LOW 33CWE-476Published 2021-08-12 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-476.

Summary

TensorFlow is an end-to-end open source platform for machine learning. It is possible to trigger a null pointer dereference in TensorFlow by passing an invalid input to `tf.raw_ops.CompressElement`. The [implementation](https://github.com/tensorflow/tensorflow/blob/47a06f40411a69c99f381495f490536972152ac0/tensorflow/core/data/compression_utils.cc#L34) was accessing the size of a buffer obtained from the return of a separate function call before validating that said buffer is valid. We have patched the issue in GitHub commit 5dc7f6981fdaf74c8c5be41f393df705841fb7c5. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

Why it matters now

EPSS 0.0016 5th percentileScored 2026-11-07

Fix Fixed tensorflow (tensorflow): 2.5.1, 2.4.3, 2.3.4tensorflow (PyPI): 2.3.4, 2.4.3, 2.5.1+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	2.5.0 to before 2.5.1; 2.4.0 to before 2.4.3; before 2.3.4	2.5.1, 2.4.3, 2.3.4	Patch available	CNA
—	tensorflow (PyPI)	before 2.3.4	2.3.4	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow (PyPI)	2.4.0 to before 2.4.3	2.4.3	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow (PyPI)	2.5.0 to before 2.5.1	2.5.1	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow-cpu (PyPI)	before 2.3.4	2.3.4	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow-cpu (PyPI)	2.4.0 to before 2.4.3	2.4.3	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow-cpu (PyPI)	2.5.0 to before 2.5.1	2.5.1	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow-gpu (PyPI)	before 2.3.4	2.3.4	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow-gpu (PyPI)	2.4.0 to before 2.4.3	2.4.3	Patch available	GHSA-c9qf-r67m-p7cg
—	tensorflow-gpu (PyPI)	2.5.0 to before 2.5.1	2.5.1	Patch available	GHSA-c9qf-r67m-p7cg

tensorflow VendorGoogle Affected 2.5.0 to before 2.5.1; 2.4.0 to before 2.4.3; before 2.3.4 Fixed in 2.5.1, 2.4.3, 2.3.4 Patch available CNA
tensorflow (PyPI) Vendor— Affected before 2.3.4 Fixed in 2.3.4 Patch available GHSA-c9qf-r67m-p7cg
tensorflow (PyPI) Vendor— Affected 2.4.0 to before 2.4.3 Fixed in 2.4.3 Patch available GHSA-c9qf-r67m-p7cg
tensorflow (PyPI) Vendor— Affected 2.5.0 to before 2.5.1 Fixed in 2.5.1 Patch available GHSA-c9qf-r67m-p7cg
tensorflow-cpu (PyPI) Vendor— Affected before 2.3.4 Fixed in 2.3.4 Patch available GHSA-c9qf-r67m-p7cg
tensorflow-cpu (PyPI) Vendor— Affected 2.4.0 to before 2.4.3 Fixed in 2.4.3 Patch available GHSA-c9qf-r67m-p7cg
tensorflow-cpu (PyPI) Vendor— Affected 2.5.0 to before 2.5.1 Fixed in 2.5.1 Patch available GHSA-c9qf-r67m-p7cg
tensorflow-gpu (PyPI) Vendor— Affected before 2.3.4 Fixed in 2.3.4 Patch available GHSA-c9qf-r67m-p7cg
tensorflow-gpu (PyPI) Vendor— Affected 2.4.0 to before 2.4.3 Fixed in 2.4.3 Patch available GHSA-c9qf-r67m-p7cg
tensorflow-gpu (PyPI) Vendor— Affected 2.5.0 to before 2.5.1 Fixed in 2.5.1 Patch available GHSA-c9qf-r67m-p7cg

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:a:google:tensorflow::::::::	2.3.0 to before 2.3.4; 2.4.0 to before 2.4.3	Vulnerable	Google
cpe:2.3:a:google:tensorflow:2.5.0:::::::*	2.5.0	Vulnerable	Google
cpe:2.3:a:google:tensorflow:2.6.0:rc0::::::	2.6.0 rc0	Vulnerable	Google
cpe:2.3:a:google:tensorflow:2.6.0:rc1::::::	2.6.0 rc1	Vulnerable	Google
cpe:2.3:a:google:tensorflow:2.6.0:rc2::::::	2.6.0 rc2	Vulnerable	Google

cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* Versions 2.3.0 to before 2.3.4; 2.4.0 to before 2.4.3 Vulnerable ·Google
cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:* Versions 2.5.0 Vulnerable ·Google
cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:* Versions 2.6.0 rc0 Vulnerable ·Google
cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:* Versions 2.6.0 rc1 Vulnerable ·Google
cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:* Versions 2.6.0 rc2 Vulnerable ·Google

Remediation

Fix · CNA tensorflow (tensorflow) Fixed in 2.5.1, 2.4.3, 2.3.4
Fix · GHSA-c9qf-r67m-p7cg tensorflow (PyPI) Fixed in 2.3.4 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow (PyPI) Fixed in 2.4.3 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow (PyPI) Fixed in 2.5.1 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow-cpu (PyPI) Fixed in 2.3.4 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow-cpu (PyPI) Fixed in 2.4.3 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow-cpu (PyPI) Fixed in 2.5.1 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow-gpu (PyPI) Fixed in 2.3.4 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow-gpu (PyPI) Fixed in 2.4.3 Advisory →
Fix · GHSA-c9qf-r67m-p7cg tensorflow-gpu (PyPI) Fixed in 2.5.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2021-37637
2026-10-03 Alias added: GHSA-c9qf-r67m-p7cg

References

Patch 1

https://github.com/tensorflow/tensorflow/commit/5dc7f6981fdaf74c8c5be41f393df705841fb7c5

Advisory 2

Other 4

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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences