In Tensorflow before versions 2.2.1 and 2.3.1, if a user passes an invalid argument to `dlpack.to_dlpack` the expected validations will cause variables to bind to `nullptr` while setting a `status` variable to the error condition. However, this `status` argument is not properly checked. Hence, code following these methods will bind references to null pointers. This is undefined behavior and reported as an error if compiling with `-fsanitize=null`. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15191
Reference (s):
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8qj-fc9q-cphr
- URL: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8qj-fc9q-cphr
- https://github.com/tensorflow/tensorflow/commit/22e07fb204386768e5bcbea563641ea11f96ceb8
- URL: https://github.com/tensorflow/tensorflow/commit/22e07fb204386768e5bcbea563641ea11f96ceb8
- https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1