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 Brigadier General (Ret) Gregory J. Touhill
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Profile of Brigadier General (Ret) Gregory J. Touhill

President, AppGate Federal Division
Member Since: 8/31/2020
Author
News & Commentary Posts: 1
Comments: 1

Brigadier General (Ret) Gregory J. Touhill, CISSP, CISM, serves as President of AppGate's Federal Division, which offers AppGate's market-leading cybersecurity capabilities to federal agencies and departments.

Prior to joining AppGate, Touhill was appointed by President Barack Obama as the nation's first ever Federal Chief Information Security Officer in 2016, where he was responsible for ensuring that the proper set of digital security policies, strategies and practices were adopted across all government agencies.

Touhill retired U.S. Air Force officer and combat veteran who served in several commands around the world including U.S. Transportation, Central, and Strategic Commands, and led the creation of the Air Force's cyberspace operations training programs. He is a sought-after speaker and author within the information technology industry, where he is best-known for his "Cybersecurity for Executives: A Practical Guide," which is used widely at colleges and universities across the country.

Articles by Brigadier General (Ret) Gregory J. Touhill
COVID-19: Latest Security News & Commentary
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Kelly Jackson Higgins, Executive Editor at Dark Reading,  9/22/2020
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CVE-2020-15208
PUBLISHED: 2020-09-25
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, when determining the common dimension size of two tensors, TFLite uses a `DCHECK` which is no-op outside of debug compilation modes. Since the function always returns the dimension of the first tensor, malicious attackers can ...
CVE-2020-15209
PUBLISHED: 2020-09-25
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, 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....
CVE-2020-15210
PUBLISHED: 2020-09-25
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, if a TFLite saved model uses the same tensor as both input and output of an operator, then, depending on the operator, we can observe a segmentation fault or just memory corruption. We have patched the issue in d58c96946b and ...
CVE-2020-15211
PUBLISHED: 2020-09-25
In TensorFlow Lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, saved models in the flatbuffer format use a double indexing scheme: a model has a set of subgraphs, each subgraph has a set of operators and each operator has a set of input/output tensors. The flatbuffer format uses indices f...
CVE-2020-15212
PUBLISHED: 2020-09-25
In TensorFlow Lite before versions 2.2.1 and 2.3.1, models using segment sum can trigger writes outside of bounds of heap allocated buffers by inserting negative elements in the segment ids tensor. Users having access to `segment_ids_data` can alter `output_index` and then write to outside of `outpu...