CVE-2021-41201
Description
TensorFlow is an open source platform for machine learning. In affeced versions during execution, EinsumHelper::ParseEquation() is supposed to set the flags in input_has_ellipsis vector and *output_has_ellipsis boolean to indicate whether there is ellipsis in the corresponding inputs and output. However, the code only changes these flags to true and never assigns false. This results in unitialized variable access if callers assume that EinsumHelper::ParseEquation() always sets these flags. 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
tensorflowPyPI | >= 2.6.0, < 2.6.1 | 2.6.1 |
tensorflowPyPI | >= 2.5.0, < 2.5.2 | 2.5.2 |
tensorflowPyPI | < 2.4.4 | 2.4.4 |
tensorflow-cpuPyPI | >= 2.6.0, < 2.6.1 | 2.6.1 |
tensorflow-cpuPyPI | >= 2.5.0, < 2.5.2 | 2.5.2 |
tensorflow-cpuPyPI | < 2.4.4 | 2.4.4 |
tensorflow-gpuPyPI | >= 2.6.0, < 2.6.1 | 2.6.1 |
tensorflow-gpuPyPI | >= 2.5.0, < 2.5.2 | 2.5.2 |
tensorflow-gpuPyPI | < 2.4.4 | 2.4.4 |
Affected products
5- osv-coords4 versions
< 2.4.4+ 3 more
- (no CPE)range: < 2.4.4
- (no CPE)range: >= 2.6.0, < 2.6.1
- (no CPE)range: >= 2.6.0, < 2.6.1
- (no CPE)range: >= 2.6.0, < 2.6.1
- Range: >= 2.6.0, < 2.6.1
Patches
Vulnerability mechanics
References
7- github.com/tensorflow/tensorflow/commit/f09caa532b6e1ac8d2aa61b7832c78c5b79300c6nvdPatchThird Party AdvisoryWEB
- github.com/tensorflow/tensorflow/security/advisories/GHSA-j86v-p27c-73fmnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-j86v-p27c-73fmghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-41201ghsaADVISORY
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-611.yamlghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-809.yamlghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-394.yamlghsaWEB
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