{"id":"CVE-2021-29554","details":"TensorFlow is an end-to-end open source platform for machine learning. An attacker can cause a denial of service via a FPE runtime error in `tf.raw_ops.DenseCountSparseOutput`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/efff014f3b2d8ef6141da30c806faf141297eca1/tensorflow/core/kernels/count_ops.cc#L123-L127) computes a divisor value from user data but does not check that the result is 0 before doing the division. Since `data` is given by the `values` argument, `num_batch_elements` is 0. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, and TensorFlow 2.3.3, as these are also affected.","aliases":["BIT-tensorflow-2021-29554","GHSA-qg48-85hg-mqc5","PYSEC-2021-191","PYSEC-2021-482","PYSEC-2021-680"],"modified":"2026-04-12T02:45:49.793909Z","published":"2021-05-14T19:15:07.800Z","related":["GHSA-qg48-85hg-mqc5"],"references":[{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/commit/da5ff2daf618591f64b2b62d9d9803951b945e9f"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-qg48-85hg-mqc5"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tensorflow/tensorflow","events":[{"introduced":"0"},{"fixed":"0931ea3d985bb9c8fdd054a5e29c4129623c849b"},{"introduced":"2b96f3662bd776e277f86997659e61046b56c315"},{"fixed":"cfe0c80169ae984bcdc99ff6de7444164aaa8e07"},{"introduced":"b36436b087bd8e8701ef51718179037cccdfc26e"},{"fixed":"3929ffacfbef7c431e8397920d040aaf47acff19"},{"introduced":"582c8d236cb079023657287c318ff26adb239002"},{"fixed":"1923123d32ea41d92b70a27a3f6ecf0763b56f6c"},{"fixed":"da5ff2daf618591f64b2b62d9d9803951b945e9f"}],"database_specific":{"source":["CPE_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"2.1.4"},{"introduced":"2.2.0"},{"fixed":"2.2.3"},{"introduced":"2.3.0"},{"fixed":"2.3.3"},{"introduced":"2.4.0"},{"fixed":"2.4.2"}],"cpe":"cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*"}}],"versions":["0.5.0","0.6.0","v1.1.0-rc1","v1.1.0-rc2","v1.12.1","v1.6.0-rc1","v1.9.0-rc2","v2.1.0","v2.1.0-rc0","v2.1.0-rc1","v2.1.0-rc2","v2.1.1","v2.1.2","v2.1.3","v2.2.0","v2.2.1","v2.2.2","v2.3.0","v2.3.1","v2.3.2","v2.4.0","v2.4.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-29554.json","vanir_signatures":[{"deprecated":false,"target":{"file":"tensorflow/core/kernels/count_ops.cc"},"source":"https://github.com/tensorflow/tensorflow/commit/da5ff2daf618591f64b2b62d9d9803951b945e9f","signature_version":"v1","digest":{"threshold":0.9,"line_hashes":["72393913217518281347375068281201240954","88181845039156400855791946809819040970","100098651302529629121122028015915145137","237038861069723650922054167167079494299"]},"signature_type":"Line","id":"CVE-2021-29554-d41b253f"}],"vanir_signatures_modified":"2026-04-12T02:45:49Z"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}