Identifier

CVE-2020-15209

Package Slug

pypi/tensorflow-cpu

Vulnerability

NULL Pointer Dereference

Description

In tensorflow-lite, a crafted TFLite model can force a node to have as input a tensor backed by a nullptr buffer. This can be achieved by changing a buffer index in the flatbuffer serialization to convert a read-only tensor to a read-write one. The runtime assumes that these buffers are written to before a possible read, hence they are initialized with nullptr. However, by changing the buffer index for a tensor and implicitly converting that tensor to be a read-write one, as there is nothing in the model that writes to it, we get a null pointer dereference.

Affected Versions

All versions before 1.15.4, all versions starting from 2.0.0 before 2.0.3, all versions starting from 2.1.0 before 2.1.2, all versions starting from 2.2.0 before 2.2.1, all versions starting from 2.3.0 before 2.3.1

Solution

Upgrade to versions 2.1.2, 2.2.1, 2.3.1 or above.

Last Modified

2020-10-05

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