Vulnerability Description
In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | < 1.15.5 |
Related Weaknesses (CWE)
References
- https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6ExploitThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6ExploitThird Party Advisory
FAQ
What is CVE-2020-26268?
CVE-2020-26268 is a vulnerability with a CVSS score of 4.4 (MEDIUM). In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is...
How severe is CVE-2020-26268?
CVE-2020-26268 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26268?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow.