c06650b697
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1.5 KiB
TFSA-2020-015: Heap buffer overflow due to invalid splits in RaggedCountSparseOutput
CVE Number
CVE-2020-15201
Impact
The RaggedCountSparseOutput implementation does not validate that the input
arguments form a valid ragged tensor. In particular, there is no validation that
the values in the splits tensor generate a valid partitioning of the values
tensor. Hence, this code is prone to heap buffer
overflow:
for (int idx = 0; idx < num_values; ++idx) {
while (idx >= splits_values(batch_idx)) {
batch_idx++;
}
// ...
}
If split_values does not end with a value at least num_values then the
while loop condition will trigger a read outside of the bounds of
split_values once batch_idx grows too large.
Vulnerable Versions
TensorFlow 2.3.0.
Patches
We have patched the issue in 3cbb917b4714766030b28eba9fb41bb97ce9ee02 and will release a patch release.
We recommend users to upgrade to TensorFlow 2.3.1.
For more information
Please consult our security guide 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.