CVE-2022-29210
Heap buffer overflow due to incorrect hash function in TensorFlow
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
TensorFlow is an open source platform for machine learning. In version 2.8.0, the `TensorKey` hash function 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. The discoverers could not use this byte vector anyway because types such as `tstring` include pointers, whereas they needed to hash the string values themselves. This issue is patched in Tensorflow versions 2.9.0 and 2.8.1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.23% · top 86% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected == 2.8.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPItensorflowGHSA-hc2f-7r5r-r2hg (opens in a new tab)
- PyPItensorflow-cpuGHSA-hc2f-7r5r-r2hg (opens in a new tab)
- PyPItensorflow-gpuGHSA-hc2f-7r5r-r2hg (opens in a new tab)
References (5)
- https://github.com/tensorflow/tensorflow/releases/tag/v2.8.1 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/releases/tag/v2.9.0 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hc2f-7r5r-r2hg (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/tensorflow/tensorflow/commit/1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/framework/tensor_key.h#L53-L64 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-hc2f-7r5r-r2hg (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-29210)Record last updated .