Core dump when loading TFLite models with quantization in TensorFlow
Medium5.5CVE-2022-29212 · Published May 24, 2022 · updated Jul 13, 2026
### Impact Certain TFLite models that were created using TFLite model converter would crash when loaded in the TFLite interpreter. The culprit is that during quantization the scale of values could be greater than 1 but code was always assuming sub-unit scaling. Thus, since code was calling [`QuantizeMultiplierSmallerThanOneExp`](https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/lite/kernels/internal/quantization_util.cc#L114-L123), the `TFLITE_CHECK_LT` assertion would trigger and abort the process. ### Patches We have patched the issue in GitHub commit [a989426ee1346693cc015792f11d715f6944f2b8](https://github.com/tensorflow/tensorflow/commit/a989426ee1346693cc015792f11d715f6944f2b8). The fix will be included in TensorFlow 2.9.0. We will also cherrypick this commit on TensorFlow 2.8.1, TensorFlow 2.7.2, and TensorFlow 2.6.4, as these are also affected and still in supported range. ### For more information Please 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. ### Attribution This vulner...
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| tensorflow PyPI | < 2.6.4 | 2.6.4 |
| >= 2.7.0, < 2.7.2 | 2.7.2 | |
| >= 2.8.0, < 2.8.1 | 2.8.1 |
Details and references
### Impact Certain TFLite models that were created using TFLite model converter would crash when loaded in the TFLite interpreter. The culprit is that during quantization the scale of values could be greater than 1 but code was always assuming sub-unit scaling. Thus, since code was calling [`QuantizeMultiplierSmallerThanOneExp`](https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/lite/kernels/internal/quantization_util.cc#L114-L123), the `TFLITE_CHECK_LT` assertion would trigger and abort the process. ### Patches We have patched the issue in GitHub commit [a989426ee1346693cc015792f11d715f6944f2b8](https://github.com/tensorflow/tensorflow/commit/a989426ee1346693cc015792f11d715f6944f2b8). The fix will be included in TensorFlow 2.9.0. We will also cherrypick this commit on TensorFlow 2.8.1, TensorFlow 2.7.2, and TensorFlow 2.6.4, as these are also affected and still in supported range. ### For more information Please 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. ### Attribution This vulnerability has been reported externally via a [GitHub issue](https://github.com/tensorflow/tensorflow/issues/43661).
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-20
- Also known as
- BIT-tensorflow-2022-29212, CVE-2022-29212, PYSEC-2026-3141, PYSEC-2026-3299, PYSEC-2026-972
- github.com/tensorflow/tensorflow/security/advisories/GHSA-8wwm-6264-x792
- nvd.nist.gov/vuln/detail/CVE-2022-29212
- github.com/tensorflow/tensorflow/issues/43661
- github.com/tensorflow/tensorflow/commit/a989426ee1346693cc015792f11d715f6944f2b8
- github.com/tensorflow/tensorflow
- github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/lite/kernels/internal/quantization_util.cc#L114-L123
- github.com/tensorflow/tensorflow/releases/tag/v2.6.4
- github.com/tensorflow/tensorflow/releases/tag/v2.7.2
- github.com/tensorflow/tensorflow/releases/tag/v2.8.1
- github.com/tensorflow/tensorflow/releases/tag/v2.9.0
More TensorFlow advisories
All TensorFlow| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| May 242022 | Code injection in `saved_model_cli` in TensorFlow High7.8May 24, 2022 | High7.8 | 2.6.4+2 more |
| May 242022 | Incomplete validation in signal ops leads to crashes in TensorFlowMedium5.5May 24, 2022 | Medium5.5 | 2.6.4+2 more |
| May 242022 | Segfault if `tf.histogram_fixed_width` is called with NaN values in TensorFlowMedium5.5May 24, 2022 | Medium5.5 | 2.6.4+2 more |
| May 242022 | Heap buffer overflow due to incorrect hash function in TensorFlowMedium5.5May 24, 2022 | Medium5.5 | 2.8.1 |
| May 242022 | Type confusion leading to `CHECK`-failure based denial of service in TensorFlowMedium5.5May 24, 2022 | Medium5.5 | 2.6.4+2 more |
| May 242022 | Segfault and OOB write due to incomplete validation in `EditDistance` in TensorFlowHigh7.1May 24, 2022 | High7.1 | 2.6.4+2 more |