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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-29603

TensorFlow is an end-to-end open source platform for machine learning. A specially crafted TFLite model could trigger an OOB write on heap in the TFLite implementation of `ArgMin`/`ArgMax`(https://github.com/tensorflow/tensorflow/blob/102b211d892f3abc14f845a72047809b39cc65ab/tensorflow/lite/kernels/arg_min_max.cc#L52-L59). If `axis_value` is not a value between 0 and `NumDimensions(input)`, then the condition in the `if` is never true, so code writes past the last valid element of `output_dims->data`. 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-2021-29603
Confirmed fixed CVEs
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Updated in this feed
31 Oct 2026, 12:45 UTC · Revision 1

Source evidence

CVE-2021-29603

core-osv · Original source

Published 14 May 2021, 20:15 UTC

TensorFlow is an end-to-end open source platform for machine learning. A specially crafted TFLite model could trigger an OOB write on heap in the TFLite implementation of `ArgMin`/`ArgMax`(https://github.com/tensorflow/tensorflow/blob/102b211d892f3abc14f845a72047809b39cc65ab/tensorflow/lite/kernels/arg_min_max.cc#L52-L59). If `axis_value` is not a value between 0 and `NumDimensions(input)`, then the condition in the `if` is never true, so code writes past the last valid element of `output_dims->data`. 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-2021-29603
Complete source record
{
  "id": "16313051342a30ef462fc1db644cd8b36ab0269fd3edfde16be02d19ddc3dd40",
  "url": "https://osv.dev/vulnerability/CVE-2021-29603",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-29603",
    "summary": "TensorFlow is an end-to-end open source platform for machine learning. A specially crafted TFLite model could trigger an OOB write on heap in the TFLite implementation of `ArgMin`/`ArgMax`(https://github.com/tensorflow/tensorflow/blob/102b211d892f3abc14f845a72047809b39cc65ab/tensorflow/lite/kernels/arg_min_max.cc#L52-L59). If `axis_value` is not a value between 0 and `NumDimensions(input)`, then the condition in the `if` is never true, so code writes past the last valid element of `output_dims->data`. 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.",
    "evidence": "osv:CVE-2021-29603",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-29603",
      "aliases": [
        "BIT-tensorflow-2021-29603",
        "CVE-2021-29603",
        "GHSA-crch-j389-5f84",
        "PYSEC-2021-240",
        "PYSEC-2021-531",
        "PYSEC-2021-729"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
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              "repo": "https://github.com/tensorflow/tensorflow",
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              "events": [
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                {
                  "fixed": "0931ea3d985bb9c8fdd054a5e29c4129623c849b"
                },
                {
                  "introduced": "2b96f3662bd776e277f86997659e61046b56c315"
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                {
                  "fixed": "cfe0c80169ae984bcdc99ff6de7444164aaa8e07"
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                {
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                {
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                },
                {
                  "fixed": "1923123d32ea41d92b70a27a3f6ecf0763b56f6c"
                },
                {
                  "fixed": "c59c37e7b2d563967da813fa50fe20b21f4da683"
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              ],
              "database_specific": {
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                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
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                        "introduced": "0"
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                      {
                        "fixed": "2.1.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.2.0"
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                      {
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                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
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                    "source": "CPE_RANGE"
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                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.0"
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                      {
                        "fixed": "2.4.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c59c37e7b2d563967da813fa50fe20b21f4da683"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
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            "v2.2.2",
            "v2.3.2",
            "v2.4.1",
            "v2.1.2",
            "v2.2.1",
            "v2.4.0",
            "v2.3.1",
            "v2.2.0",
            "v2.1.1",
            "v2.3.0",
            "v2.1.0",
            "v2.1.0-rc0",
            "v2.1.0-rc2",
            "v2.1.0-rc1",
            "v1.12.1",
            "v1.9.0-rc2",
            "v1.6.0-rc1",
            "v1.1.0-rc2",
            "v1.1.0-rc1",
            "0.6.0",
            "0.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29603.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-29603-0ab41245",
                "digest": {
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                  "line_hashes": [
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                },
                "source": "https://github.com/tensorflow/tensorflow/commit/c59c37e7b2d563967da813fa50fe20b21f4da683",
                "target": {
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                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
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                "id": "CVE-2021-29603-d1ede646",
                "digest": {
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                  "function_hash": "112725398205872110505271504851321397190"
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                "source": "https://github.com/tensorflow/tensorflow/commit/c59c37e7b2d563967da813fa50fe20b21f4da683",
                "target": {
                  "file": "tensorflow/lite/kernels/arg_min_max.cc",
                  "function": "ResizeOutput"
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                "deprecated": false,
                "signature_type": "Function",
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            ],
            "vanir_signatures_modified": "2026-10-20T14:24:43Z"
          }
        }
      ],
      "modified": "2026-10-20T14:24:43.088882638Z",
      "provider": "osv",
      "references": [
        "https://github.com/tensorflow/tensorflow/commit/c59c37e7b2d563967da813fa50fe20b21f4da683",
        "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-crch-j389-5f84"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-29603",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388959,
  "published_at": "2021-05-14T20:15:15.577+00:00"
}