cve.bz

CVE-2021-29612

7.8 highEPSS 0.3%

High (7.8) in google tensorflow. EPSS 0.3% 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. An attacker can trigger a heap buffer overflow in Eigen implementation of `tf.raw_ops.BandedTriangularSolve`. The implementation(https://github.com/tensorflow/tensorflow/blob/eccb7ec454e6617738554a255d77f08e60ee0808/tensorflow/core/kernels/linalg/banded_triangular_solve_op.cc#L269-L278) calls `ValidateInputTensors` for input validation but fails to validate that the two tensors are not empty. Furthermore, since `OP_REQUIRES` macro only stops execution of current function after setting `ctx->status()` to a non-OK value, callers of helper functions that use `OP_REQUIRES` must check value of `ctx->status()` before continuing. This doesn't happen in this op's implementation(https://github.com/tensorflow/tensorflow/blob/eccb7ec454e6617738554a255d77f08e60ee0808/tensorflow/core/kernels/linalg/banded_triangular_solve_op.cc#L219), hence the validation that is present is also not effective. 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
0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
CWEs
CWE-787, CWE-120
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-2xgj-xhgf-ggjvPyPItensorflow<2.1.42.1.4
GHSA-2xgj-xhgf-ggjvPyPItensorflow>=2.2.0 <2.2.32.2.3
GHSA-2xgj-xhgf-ggjvPyPItensorflow>=2.3.0 <2.3.32.3.3
GHSA-2xgj-xhgf-ggjvPyPItensorflow>=2.4.0 <2.4.22.4.2
GHSA-2xgj-xhgf-ggjvPyPItensorflow-cpu<2.1.42.1.4
GHSA-2xgj-xhgf-ggjvPyPItensorflow-cpu>=2.2.0 <2.2.32.2.3
GHSA-2xgj-xhgf-ggjvPyPItensorflow-cpu>=2.3.0 <2.3.32.3.3
GHSA-2xgj-xhgf-ggjvPyPItensorflow-cpu>=2.4.0 <2.4.22.4.2
GHSA-2xgj-xhgf-ggjvPyPItensorflow-gpu<2.1.42.1.4
GHSA-2xgj-xhgf-ggjvPyPItensorflow-gpu>=2.2.0 <2.2.32.2.3
GHSA-2xgj-xhgf-ggjvPyPItensorflow-gpu>=2.3.0 <2.3.32.3.3
GHSA-2xgj-xhgf-ggjvPyPItensorflow-gpu>=2.4.0 <2.4.22.4.2
PYSEC-2021-249PyPItensorflow<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-2021-540PyPItensorflow-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-2021-738PyPItensorflow-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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