CVE-2021-41217
Description
TensorFlow is an open source platform for machine learning. In affected versions the process of building the control flow graph for a TensorFlow model is vulnerable to a null pointer exception when nodes that should be paired are not. This occurs because the code assumes that the first node in the pairing (e.g., an Enter node) always exists when encountering the second node (e.g., an Exit node). When this is not the case, parent is nullptr so dereferencing it causes a crash. 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/05cbebd3c6bb8f517a158b0155debb8df79017ffnvdPatchThird Party AdvisoryWEB
- github.com/tensorflow/tensorflow/security/advisories/GHSA-5crj-c72x-m7gqnvdExploitPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-5crj-c72x-m7gqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-41217ghsaADVISORY
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-626.yamlghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-824.yamlghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-409.yamlghsaWEB
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