CVE-2020-15212
Out of bounds access in tensorflow-lite
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
In TensorFlow Lite before versions 2.2.1 and 2.3.1, models using segment sum can trigger writes outside of bounds of heap allocated buffers by inserting negative elements in the segment ids tensor. Users having access to `segment_ids_data` can alter `output_index` and then write to outside of `output_data` buffer. This might result in a segmentation fault but it can also be used to further corrupt the memory and can be chained with other vulnerabilities to create more advanced exploits. The issue is patched in commit 204945b19e44b57906c9344c0d00120eeeae178a and is released in TensorFlow versions 2.2.1, or 2.3.1. A potential workaround would be to add a custom `Verifier` to the model loading code to ensure that the segment ids are all positive, although this only handles the case when the segment ids are stored statically in the model. A similar validation could be done if the segment ids are generated at runtime between inference steps. If the segment ids are generated as outputs of a tensor during inference steps, then there are no possible workaround and users are advised to upgrade to patched code.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H |
| NVDNVD · Modified | 3.1 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
- EPSS (exploitation in 30 days)
- 0.74% · top 45% of all CVEs (4 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
Affected products
- affected >= 2.2.0, < 2.2.1
- affected >= 2.3.0, < 2.3.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPItensorflowGHSA-hx2x-85gr-wrpq (opens in a new tab)
- PyPItensorflow-cpuGHSA-hx2x-85gr-wrpq (opens in a new tab)
- PyPItensorflow-gpuGHSA-hx2x-85gr-wrpq (opens in a new tab)
References (3)
- https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/commit/204945b19e44b57906c9344c0d00120eeeae178a (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hx2x-85gr-wrpq (opens in a new tab)x_refsource_CONFIRMx_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-hx2x-85gr-wrpq (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-2020-15212)Record last updated .