cve.bz

CVE-2021-29579

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. The implementation of `tf.raw_ops.MaxPoolGrad` is vulnerable to a heap buffer overflow. The implementation(https://github.com/tensorflow/tensorflow/blob/ab1e644b48c82cb71493f4362b4dd38f4577a1cf/tensorflow/core/kernels/maxpooling_op.cc#L194-L203) fails to validate that indices used to access elements of input/output arrays are valid. Whereas accesses to `input_backprop_flat` are guarded by `FastBoundsCheck`, the indexing in `out_backprop_flat` can result in OOB access. 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 11% of CVEs (scores of 2026-10-31)
CWEs
CWE-787, CWE-119
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-79fv-9865-4qcvPyPItensorflow<2.1.42.1.4
GHSA-79fv-9865-4qcvPyPItensorflow>=2.2.0 <2.2.32.2.3
GHSA-79fv-9865-4qcvPyPItensorflow>=2.3.0 <2.3.32.3.3
GHSA-79fv-9865-4qcvPyPItensorflow>=2.4.0 <2.4.22.4.2
GHSA-79fv-9865-4qcvPyPItensorflow-cpu<2.1.42.1.4
GHSA-79fv-9865-4qcvPyPItensorflow-cpu>=2.2.0 <2.2.32.2.3
GHSA-79fv-9865-4qcvPyPItensorflow-cpu>=2.3.0 <2.3.32.3.3
GHSA-79fv-9865-4qcvPyPItensorflow-cpu>=2.4.0 <2.4.22.4.2
GHSA-79fv-9865-4qcvPyPItensorflow-gpu<2.1.42.1.4
GHSA-79fv-9865-4qcvPyPItensorflow-gpu>=2.2.0 <2.2.32.2.3
GHSA-79fv-9865-4qcvPyPItensorflow-gpu>=2.3.0 <2.3.32.3.3
GHSA-79fv-9865-4qcvPyPItensorflow-gpu>=2.4.0 <2.4.22.4.2
PYSEC-2021-216PyPItensorflow<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-2021-507PyPItensorflow-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-2021-705PyPItensorflow-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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