CVE-2021-41227
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
TensorFlow is an open source platform for machine learning. In affected versions the `ImmutableConst` operation in TensorFlow can be tricked into reading arbitrary memory contents. This is because the `tstring` TensorFlow string class has a special case for memory mapped strings but the operation itself does not offer any support for this datatype. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit 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
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-41227
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.6.1-1 | |
| debian | forky | fixed | 0 |
| debian | sid | 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 | <1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b||>=2.7.0rc0,<2.7.0 | 3712a2d3455e6ccb924daa5724a3652a86f6b585 |
| PyPI | tensorflow | <1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b||>=2.7.0rc0,<2.7.0 | 3712a2d3455e6ccb924daa5724a3652a86f6b585 |
| PyPI | tensorflow-gpu | <1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b||>=2.7.0rc0,<2.7.0 | 3712a2d3455e6ccb924daa5724a3652a86f6b585 |
References
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j8c8-67vp-6mx7
- https://nvd.nist.gov/vuln/detail/CVE-2021-41227
- https://github.com/tensorflow/tensorflow/commit/1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b
- https://github.com/tensorflow/tensorflow/commit/3712a2d3455e6ccb924daa5724a3652a86f6b585
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-636.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-834.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-419.yaml
- https://github.com/tensorflow/tensorflow
- https://security-tracker.debian.org/tracker/CVE-2021-41227
Verify integrity in audit chain (admin only). AS-IS.