cve.bz

CVE-2021-29518

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. In eager mode (default in TF 2.0 and later), session operations are invalid. However, users could still call the raw ops associated with them and trigger a null pointer dereference. The implementation(https://github.com/tensorflow/tensorflow/blob/eebb96c2830d48597d055d247c0e9aebaea94cd5/tensorflow/core/kernels/session_ops.cc#L104) dereferences the session state pointer without checking if it is valid. Thus, in eager mode, `ctx->session_state()` is nullptr and the call of the member function is undefined behavior. 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 10% of CVEs (scores of 2026-10-31)
CWE
CWE-476
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-62gx-355r-9fhgPyPItensorflow<2.1.42.1.4
GHSA-62gx-355r-9fhgPyPItensorflow>=2.2.0 <2.2.32.2.3
GHSA-62gx-355r-9fhgPyPItensorflow>=2.3.0 <2.3.32.3.3
GHSA-62gx-355r-9fhgPyPItensorflow>=2.4.0 <2.4.22.4.2
GHSA-62gx-355r-9fhgPyPItensorflow-cpu<2.1.42.1.4
GHSA-62gx-355r-9fhgPyPItensorflow-cpu>=2.2.0 <2.2.32.2.3
GHSA-62gx-355r-9fhgPyPItensorflow-cpu>=2.3.0 <2.3.32.3.3
GHSA-62gx-355r-9fhgPyPItensorflow-cpu>=2.4.0 <2.4.22.4.2
GHSA-62gx-355r-9fhgPyPItensorflow-gpu<2.1.42.1.4
GHSA-62gx-355r-9fhgPyPItensorflow-gpu>=2.2.0 <2.2.32.2.3
GHSA-62gx-355r-9fhgPyPItensorflow-gpu>=2.3.0 <2.3.32.3.3
GHSA-62gx-355r-9fhgPyPItensorflow-gpu>=2.4.0 <2.4.22.4.2
PYSEC-2021-155PyPItensorflow<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-2021-446PyPItensorflow-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-2021-644PyPItensorflow-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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