CVE-2021-29599

描述

### Impact The implementation of the `Split` TFLite operator is [vulnerable to a division by zero error](https://github.com/tensorflow/tensorflow/blob/e2752089ef7ce9bcf3db0ec618ebd23ea119d0c7/tensorflow/lite/kernels/split.cc#L63-L65): ```cc TF_LITE_ENSURE_MSG(context, input_size % num_splits == 0, "Not an even split"); const int slice_size = input_size / num_splits; ``` An attacker can craft a model such that `num_splits` would be 0. ### Patches We have patched the issue in GitHub commit [b22786e7e9b7bdb6a56936ff29cc7e9968d7bc1d](https://github.com/tensorflow/tensorflow/commit/b22786e7e9b7bdb6a56936ff29cc7e9968d7bc1d). The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, 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 by members of the Aivul Team from Qihoo 360.

受影響套件(7)

• Bitnami/tensorflowfrom 0, < 2.1.4, >= 2.2.0, < 2.2.3, >= 2.3.0, < 2.3.3, >= 2.4.0, < 2.4.2
• PyPI/tensorflowfrom 0, < 2.1.4
• PyPI/tensorflowfrom 0, < b22786e7e9b7bdb6a56936ff29cc7e9968d7bc1d | from 0, < 2.1.4, >= 2.2.0, < 2.2.3, >= 2.3.0, < 2.3.3, >= 2.4.0, < 2.4.2
• PyPI/tensorflow-cpufrom 0, < b22786e7e9b7bdb6a56936ff29cc7e9968d7bc1d | from 0, < 2.1.4, >= 2.2.0, < 2.2.3, >= 2.3.0, < 2.3.3, >= 2.4.0, < 2.4.2
• PyPI/tensorflow-cpufrom 0, < 2.1.4
• PyPI/tensorflow-gpufrom 0, < b22786e7e9b7bdb6a56936ff29cc7e9968d7bc1d | from 0, < 2.1.4, >= 2.2.0, < 2.2.3, >= 2.3.0, < 2.3.3, >= 2.4.0, < 2.4.2
• PyPI/tensorflow-gpufrom 0, < 2.1.4

CVSS 分數

參考連結(8)

• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-29599
• PATCHhttps://github.com/tensorflow/tensorflow
• WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-527.yaml
• WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-725.yaml
• WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-236.yaml
• WEBhttps://github.com/tensorflow/tensorflow/blob/e2752089ef7ce9bcf3db0ec618ebd23ea119d0c7/tensorflow/lite/kernels/split.cc#L63-L65
• WEBhttps://github.com/tensorflow/tensorflow/commit/b22786e7e9b7bdb6a56936ff29cc7e9968d7bc1d
• WEBhttps://github.com/tensorflow/tensorflow/security/advisories/GHSA-97wf-p777-86jq