Out of bounds read in Tensorflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
Tensorflow is an Open Source Machine Learning Framework. The implementation of shape inference for `ReverseSequence` does not fully validate the value of `batch_dim` and can result in a heap OOB read. There is a check to make sure the value of `batch_dim` does not go over the rank of the input, but there is no check for negative values. Negative dimensions are allowed in some cases to mimic Python's negative indexing (i.e., indexing from the end of the array), however if the value is too negative then the implementation of `Dim` would access elements before the start of an array. The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | tensorflow (PyPI) | before 2.5.3 | 2.5.3 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow (PyPI) | 2.6.0 to before 2.6.3 | 2.6.3 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow (PyPI) | 2.7.0 to before 2.7.1 | 2.7.1 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow-cpu (PyPI) | before 2.5.3 | 2.5.3 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow-cpu (PyPI) | 2.6.0 to before 2.6.3 | 2.6.3 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow-cpu (PyPI) | 2.7.0 to before 2.7.1 | 2.7.1 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow-gpu (PyPI) | before 2.5.3 | 2.5.3 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow-gpu (PyPI) | 2.6.0 to before 2.6.3 | 2.6.3 | Patch available | GHSA-6gmv-pjp9-p8w8 |
| — | tensorflow-gpu (PyPI) | 2.7.0 to before 2.7.1 | 2.7.1 | Patch available | GHSA-6gmv-pjp9-p8w8 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- tensorflow (PyPI) Vendor— Affected before 2.5.3 Fixed in 2.5.3 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow (PyPI) Vendor— Affected 2.6.0 to before 2.6.3 Fixed in 2.6.3 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow (PyPI) Vendor— Affected 2.7.0 to before 2.7.1 Fixed in 2.7.1 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow-cpu (PyPI) Vendor— Affected before 2.5.3 Fixed in 2.5.3 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow-cpu (PyPI) Vendor— Affected 2.6.0 to before 2.6.3 Fixed in 2.6.3 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow-cpu (PyPI) Vendor— Affected 2.7.0 to before 2.7.1 Fixed in 2.7.1 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow-gpu (PyPI) Vendor— Affected before 2.5.3 Fixed in 2.5.3 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow-gpu (PyPI) Vendor— Affected 2.6.0 to before 2.6.3 Fixed in 2.6.3 Patch available GHSA-6gmv-pjp9-p8w8
- tensorflow-gpu (PyPI) Vendor— Affected 2.7.0 to before 2.7.1 Fixed in 2.7.1 Patch available GHSA-6gmv-pjp9-p8w8
Remediation
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow (PyPI) Fixed in 2.5.3 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow (PyPI) Fixed in 2.6.3 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow (PyPI) Fixed in 2.7.1 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow-cpu (PyPI) Fixed in 2.5.3 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow-cpu (PyPI) Fixed in 2.6.3 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow-cpu (PyPI) Fixed in 2.7.1 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow-gpu (PyPI) Fixed in 2.5.3 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow-gpu (PyPI) Fixed in 2.6.3 Advisory →
- Fix · GHSA-6gmv-pjp9-p8w8 tensorflow-gpu (PyPI) Fixed in 2.7.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-21728
- 2026-10-03 Alias added: GHSA-6gmv-pjp9-p8w8
References
Exploit 2
Patch 2
More Google Tensorflow vulnerabilities
- TI-2022-20241 FractionalMaxPool and FractionalAVGPool heap out-of-bounds acess in Tensorflow CVSS 3.1CRITICAL 9.8
- TI-2022-07640 Integer overflow in Tensorflow CVSS 3.1CRITICAL 9.8
- TI-2022-07627 Out of bounds read and write in Tensorflow CVSS 3.1HIGH 8.8
- TI-2022-07619 Out of bounds write in Tensorflow CVSS 3.1HIGH 8.8
- TI-2022-07613 Read and Write outside of bounds in TFLite CVSS 3.1HIGH 8.8
- TI-2022-07612 Integer overflow in TFLite CVSS 3.1HIGH 8.8
Sources
- CVE-2022-21728 · CVE Program
- CVE-2022-21728 · NVD
- FIRST EPSS
- GHSA-6gmv-pjp9-p8w8 · GitHub Advisory Database · CC BY 4.0
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