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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2021-29564

TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a null pointer dereference in the implementation of `tf.raw_ops.EditDistance`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/79865b542f9ffdc9caeb255631f7c56f1d4b6517/tensorflow/core/kernels/edit_distance_op.cc#L103-L159) has incomplete validation of the input parameters. 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.

Products
Not specified
Affected versions
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Fixed versions
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CVEs
CVE-2021-29564
Confirmed fixed CVEs
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Updated in this feed
31 Oct 2026, 12:44 UTC · Revision 1

Source evidence

CVE-2021-29564

core-osv · Original source

Published 14 May 2021, 20:15 UTC

TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a null pointer dereference in the implementation of `tf.raw_ops.EditDistance`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/79865b542f9ffdc9caeb255631f7c56f1d4b6517/tensorflow/core/kernels/edit_distance_op.cc#L103-L159) has incomplete validation of the input parameters. 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.

osv:CVE-2021-29564
Complete source record
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  "url": "https://osv.dev/vulnerability/CVE-2021-29564",
  "method": "structured",
  "payload": {
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    "title": "CVE-2021-29564",
    "summary": "TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a null pointer dereference in the implementation of `tf.raw_ops.EditDistance`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/79865b542f9ffdc9caeb255631f7c56f1d4b6517/tensorflow/core/kernels/edit_distance_op.cc#L103-L159) has incomplete validation of the input parameters. 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.",
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        "GHSA-75f6-78jr-4656",
        "PYSEC-2021-201",
        "PYSEC-2021-492",
        "PYSEC-2021-690"
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      "modified": "2026-10-20T14:24:32.028182984Z",
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}