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CVE-2020-15193

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Date: September 25, 2020

In Tensorflow before versions 2.2.1 and 2.3.1, the implementation of "dlpack.to_dlpack" can be made to use uninitialized memory resulting in further memory corruption. This is because the pybind11 glue code assumes that the argument is a tensor. However, there is nothing stopping users from passing in a Python object instead of a tensor. The uninitialized memory address is due to a "reinterpret_cast" Since the "PyObject" is a Python object, not a TensorFlow Tensor, the cast to "EagerTensor" fails. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.

Language: C++

Severity Score

Severity Score

Weakness Type (CWE)

Use of Uninitialized Resource

CWE-908

Top Fix

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Upgrade Version

Upgrade to version tensorflow - 2.2.1;tensorflow - 2.3.1;tensorflow-cpu - 2.2.1;tensorflow-cpu - 2.3.1;tensorflow-cpu - 2.2.1;tensorflow-gpu - 2.2.1;tensorflow-gpu - 2.3.1;tensorflow-gpu - 2.2.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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