{"id":"CVE-2022-29210","aliases":["BIT-tensorflow-2022-29210","GHSA-hc2f-7r5r-r2hg","PYSEC-2026-1007","PYSEC-2026-3200","PYSEC-2026-3339"],"url":"https://o3.security/vulnerability/CVE-2022-29210","summary":"Heap buffer overflow due to incorrect hash function in TensorFlow","details":"### Impact\nThe [`TensorKey` hash function](https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/framework/tensor_key.h#L53-L64) used total estimated `AllocatedBytes()`, which (a) is an estimate per tensor, and (b) is a very poor hash function for constants (e.g. `int32_t`).  It also tried to access individual tensor bytes through `tensor.data()` of size `AllocatedBytes()`.  This led to ASAN failures because the `AllocatedBytes()` is an estimate of total bytes allocated by a tensor, including any pointed-to constructs (e.g. strings), and does not refer to contiguous bytes in the `.data()` buffer.  We couldn't use this byte vector anyways, since types like `tstring` include pointers, whereas we need to hash the string values themselves.\n\n### Patches\nWe have patched the issue in GitHub commit [1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6](https://github.com/tensorflow/tensorflow/commit/1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6).\n\nThe fix will be included in TensorFlow 2.9.0. We will also cherrypick this commit on TensorFlow 2.8.1, which is the only other affected version.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.","published":"2022-05-20T23:25:21Z","modified":"2026-10-28T10:28:02.485449201Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"tensorflow","fixedVersion":"2.8.1"},{"ecosystem":"PyPI","name":"tensorflow-cpu","fixedVersion":"2.8.1"},{"ecosystem":"PyPI","name":"tensorflow-gpu","fixedVersion":"2.8.1"}],"fix":{"url":"https://github.com/tensorflow/tensorflow/commit/1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6","label":"tensorflow/tensorflow@1b85a28"},"references":[{"type":"WEB","url":"https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/framework/tensor_key.h#L53-L64"},{"type":"WEB","url":"https://github.com/tensorflow/tensorflow/releases/tag/v2.8.1"},{"type":"WEB","url":"https://github.com/tensorflow/tensorflow/releases/tag/v2.9.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29210.json"},{"type":"ADVISORY","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hc2f-7r5r-r2hg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29210"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/commit/1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6"},{"type":"PACKAGE","url":"https://github.com/tensorflow/tensorflow"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T10:28:02.485449201Z"}}