CVE-2022-23563

Advisory

Tensorflow versions 2.5.3, 2.6.3, 2.7.1 and 2.8.0 include a fix for CVE-2022-23563: In multiple places, TensorFlow uses 'tempfile.mktemp' to create temporary files. While this is acceptable in testing, in utilities and libraries it is dangerous as a different process can create the file between the check for the filename in 'mktemp' and the actual creation of the file by a subsequent operation (a TOC/TOU type of weakness). In several instances, TensorFlow was supposed to actually create a temporary directory instead of a file. This logic bug is hidden away by the 'mktemp' function usage. It was replaced 'mktemp' with the safer 'mkstemp'/'mkdtemp' functions, according to the usage pattern.
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wc4g-r73w-x8mm

Affected package

Affected versions

Fixed versions

Vulnerability changelog

Tensorflow is an Open Source Machine Learning Framework. In multiple places, TensorFlow uses `tempfile.mktemp` to create temporary files. While this is acceptable in testing, in utilities and libraries it is dangerous as a different process can create the file between the check for the filename in `mktemp` and the actual creation of the file by a subsequent operation (a TOC/TOU type of weakness). In several instances, TensorFlow was supposed to actually create a temporary directory instead of a file. This logic bug is hidden away by the `mktemp` function usage. We have patched the issue in several commits, replacing `mktemp` with the safer `mkstemp`/`mkdtemp` functions, according to the usage pattern. Users are advised to upgrade as soon as possible. See CVE-2022-23563.


CONFIRM:https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wc4g-r73w-x8mm: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wc4g-r73w-x8mm

Resources

• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-wc4g-r73w-x8mm
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23563