Vulnerability Description
In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, to mimic Python's indexing with negative values, TFLite uses `ResolveAxis` to convert negative values to positive indices. However, the only check that the converted index is now valid is only present in debug builds. If the `DCHECK` does not trigger, then code execution moves ahead with a negative index. This, in turn, results in accessing data out of bounds which results in segfaults and/or data corruption. The issue is patched in commit 2d88f470dea2671b430884260f3626b1fe99830a, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | < 1.15.4 | |
| Opensuse | Leap | 15.2 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.htmlMailing ListThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/2d88f470dea2671b430884260f3626b1PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1Third Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q4qf-3fc6-8x34ExploitThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.htmlMailing ListThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/2d88f470dea2671b430884260f3626b1PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1Third Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q4qf-3fc6-8x34ExploitThird Party Advisory
FAQ
What is CVE-2020-15207?
CVE-2020-15207 is a vulnerability with a CVSS score of 8.7 (HIGH). In tensorflow-lite before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, to mimic Python's indexing with negative values, TFLite uses `ResolveAxis` to convert negative values to positive indices. How...
How severe is CVE-2020-15207?
CVE-2020-15207 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15207?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow, Opensuse Leap.