chore: import upstream snapshot with attribution

2026-07-13 12:14:16 +08:00
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+## TFSA-2021-083: Division by zero in TFLite's implementation of `EmbeddingLookup`
+
+### CVE Number
+CVE-2021-29596
+
+### Impact
+The implementation of the `EmbeddingLookup` TFLite operator is [vulnerable to a
+division by zero
+error](https://github.com/tensorflow/tensorflow/blob/e4b29809543b250bc9b19678ec4776299dd569ba/tensorflow/lite/kernels/embedding_lookup.cc#L73-L74):
+
+```cc
+const int row_size = SizeOfDimension(value, 0);
+const int row_bytes = value->bytes / row_size;
+```
+
+An attacker can craft a model such that the first dimension of the `value` input
+is 0.
+
+### Patches
+We have patched the issue in GitHub commit
+[f61c57bd425878be108ec787f4d96390579fb83e](https://github.com/tensorflow/tensorflow/commit/f61c57bd425878be108ec787f4d96390579fb83e).
+
+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.