CVE-2021-41206
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 2.6.1-1 |
Debian Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| sid | Fixed | 0 |
| forky | Fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | tensorflow | >=2.6.0,<2.6.1 | 2.6.1 |
| PyPI | tensorflow | >=2.5.0,<2.5.2 | 2.5.2 |
| PyPI | tensorflow | <2.4.4 | 2.4.4 |
| PyPI | tensorflow-cpu | >=2.6.0,<2.6.1 | 2.6.1 |
| PyPI | tensorflow-cpu | >=2.5.0,<2.5.2 | 2.5.2 |
| PyPI | tensorflow-cpu | <2.4.4 | 2.4.4 |
| PyPI | tensorflow-gpu | >=2.6.0,<2.6.1 | 2.6.1 |
| PyPI | tensorflow-gpu | >=2.5.0,<2.5.2 | 2.5.2 |
| PyPI | tensorflow-gpu | <2.4.4 | 2.4.4 |
| PyPI | tensorflow-cpu | <4dddb2fd0b01cdd196101afbba6518658a2c9e07||>=2.6.0,<2.6.1 | 68422b215e618df5ad375bcdc6d2052e9fd3080a |
| PyPI | tensorflow-gpu | <4dddb2fd0b01cdd196101afbba6518658a2c9e07||>=2.6.0,<2.6.1 | 68422b215e618df5ad375bcdc6d2052e9fd3080a |
| PyPI | tensorflow | <4dddb2fd0b01cdd196101afbba6518658a2c9e07||>=2.6.0,<2.6.1 | 68422b215e618df5ad375bcdc6d2052e9fd3080a |
References
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-pgcq-h79j-2f69
- https://nvd.nist.gov/vuln/detail/CVE-2021-41206
- https://github.com/tensorflow/tensorflow/commit/4d74d8a00b07441cba090a02e0dd9ed385145bf4
- https://github.com/tensorflow/tensorflow/commit/4dddb2fd0b01cdd196101afbba6518658a2c9e07
- https://github.com/tensorflow/tensorflow/commit/579261dcd446385831fe4f7457d802a59685121d
- https://github.com/tensorflow/tensorflow/commit/68422b215e618df5ad375bcdc6d2052e9fd3080a
- https://github.com/tensorflow/tensorflow/commit/da4aad5946be30e5f049920fa076e1f7ef021261
- https://github.com/tensorflow/tensorflow/commit/e7f497570abb6b4ae5af4970620cd880e4c0c904
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-845.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-847.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-843.yaml
- https://github.com/tensorflow/tensorflow
- https://security-tracker.debian.org/tracker/CVE-2021-41206
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.