Vulnerability in Google Tensorflow
CVE-2021-41206
TensorFlow is an open source platform for machine learning. In affected versions several TensorFlow operations are missing validation for the shapes of the tensor arguments involved in the call. Depending on the API, this can result in undefined behavior and segfault or `CHECK`-fail related crashes but in some scenarios writes and reads from heap populated arrays are also possible. We have discovered these issues internally via tooling while working on improving/testing GPU op determinism. As such, we don't have reproducers and there will be multiple fixes for these issues. These fixes will be included in TensorFlow 2.7.0. We will also cherrypick these commits on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Google Tensorflow — versions 2.7.0
- Tensorflow — versions >= 2.6.0, < 2.6.1, >= 2.5.0, < 2.5.2, < 2.4.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/tensorflow/tensorflow/security/advisories/GHSA-pgcq-h79j-2f69 (Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/4d74d8a00b07441cba090a02e0dd9ed385145bf4 (Patch, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/4dddb2fd0b01cdd196101afbba6518658a2c9e07 (Patch, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/579261dcd446385831fe4f7457d802a59685121d (Patch, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/68422b215e618df5ad375bcdc6d2052e9fd3080a (Patch, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/da4aad5946be30e5f049920fa076e1f7ef021261 (Patch, Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/e7f497570abb6b4ae5af4970620cd880e4c0c904 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41206?
- CVE-2021-41206 is a high-severity vulnerability in Google Tensorflow, classified under Improper Validation of Integrity Check Value. CVSS score: 7.0/10. Published 2021-11-05.
- How severe is CVE-2021-41206?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2021-41206 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.