cve.bz

CVE-2021-29609

7.8 highEPSS 0.2%

High (7.8) in google tensorflow. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in tensorflow 2.1.4, 2.2.3, 2.3.3.

TensorFlow is an end-to-end open source platform for machine learning. Incomplete validation in `SparseAdd` results in allowing attackers to exploit undefined behavior (dereferencing null pointers) as well as write outside of bounds of heap allocated data. The implementation(https://github.com/tensorflow/tensorflow/blob/656e7673b14acd7835dc778867f84916c6d1cac2/tensorflow/core/kernels/sparse_add_op.cc) has a large set of validation for the two sparse tensor inputs (6 tensors in total), but does not validate that the tensors are not empty or that the second dimension of `*_indices` matches the size of corresponding `*_shape`. This allows attackers to send tensor triples that represent invalid sparse tensors to abuse code assumptions that are not protected by validation. 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.

Severity

CVSS 3.1

7.8 high
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWEs
CWE-476, CWE-787, CWE-665
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-cjc7-49v2-jp64PyPItensorflow<2.1.42.1.4
GHSA-cjc7-49v2-jp64PyPItensorflow>=2.2.0 <2.2.32.2.3
GHSA-cjc7-49v2-jp64PyPItensorflow>=2.3.0 <2.3.32.3.3
GHSA-cjc7-49v2-jp64PyPItensorflow>=2.4.0 <2.4.22.4.2
GHSA-cjc7-49v2-jp64PyPItensorflow-cpu<2.1.42.1.4
GHSA-cjc7-49v2-jp64PyPItensorflow-cpu>=2.2.0 <2.2.32.2.3
GHSA-cjc7-49v2-jp64PyPItensorflow-cpu>=2.3.0 <2.3.32.3.3
GHSA-cjc7-49v2-jp64PyPItensorflow-cpu>=2.4.0 <2.4.22.4.2
GHSA-cjc7-49v2-jp64PyPItensorflow-gpu<2.1.42.1.4
GHSA-cjc7-49v2-jp64PyPItensorflow-gpu>=2.2.0 <2.2.32.2.3
GHSA-cjc7-49v2-jp64PyPItensorflow-gpu>=2.3.0 <2.3.32.3.3
GHSA-cjc7-49v2-jp64PyPItensorflow-gpu>=2.4.0 <2.4.22.4.2
PYSEC-2021-246PyPItensorflow<2.1.4
>=2.2.0 <2.2.3
>=2.3.0 <2.3.3
>=2.4.0 <2.4.2		2.1.4, 2.2.3, 2.3.3, 2.4.2
PYSEC-2021-537PyPItensorflow-cpu<2.1.4
>=2.2.0 <2.2.3
>=2.3.0 <2.3.3
>=2.4.0 <2.4.2		2.1.4, 2.2.3, 2.3.3, 2.4.2
PYSEC-2021-735PyPItensorflow-gpu<2.1.4
>=2.2.0 <2.2.3
>=2.3.0 <2.3.3
>=2.4.0 <2.4.2		2.1.4, 2.2.3, 2.3.3, 2.4.2

References

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