PT-2020-16394 · Google · Tensorflow
Mihaimaruseac
·
Published
2020-12-10
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Updated
2024-03-06
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CVE-2020-26271
CVSS v4.0
4.8
Medium
| Vector | AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
TensorFlow versions prior to 1.15.5
TensorFlow versions prior to 2.0.4
TensorFlow versions prior to 2.1.3
TensorFlow versions prior to 2.2.2
TensorFlow versions prior to 2.3.2
TensorFlow versions prior to 2.4.0
Description
In affected versions of TensorFlow, under certain cases, loading a saved model can result in accessing uninitialized memory while building the computation graph. The MakeEdge function creates an edge between one output tensor of the src node (given by
output index) and the input slot of the dst node (given by input index). This is only possible if the types of the tensors on both sides coincide, so the function begins by obtaining the corresponding DataType values and comparing these for equality. However, there is no check that the indices point to inside of the arrays they index into. Thus, this can result in accessing data out of bounds of the corresponding heap allocated arrays. In most scenarios, this can manifest as uninitialized data access, but if the index points far away from the boundaries of the arrays this can be used to leak addresses from the library.Recommendations
For versions prior to 1.15.5, update to version 1.15.5 or later.
For versions prior to 2.0.4, update to version 2.0.4 or later.
For versions prior to 2.1.3, update to version 2.1.3 or later.
For versions prior to 2.2.2, update to version 2.2.2 or later.
For versions prior to 2.3.2, update to version 2.3.2 or later.
For versions prior to 2.4.0, update to version 2.4.0 or later.
Exploit
Fix
Out of bounds Read
Use of Uninitialized Resource
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Related Identifiers
Affected Products
Tensorflow