AVID-2026-R0792
Description
Null pointer dereference in TFLite’s Reshape operator (CVE-2021-29592)
Details
TensorFlow is an end-to-end open source platform for machine learning. The fix for CVE-2020-15209(https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15209) missed the case when the target shape of Reshape operator is given by the elements of a 1-D tensor. As such, the fix for the vulnerability(https://github.com/tensorflow/tensorflow/blob/9c1dc920d8ffb4893d6c9d27d1f039607b326743/tensorflow/lite/core/subgraph.cc#L1062-L1074) allowed passing a null-buffer-backed tensor with a 1D shape. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
Reason for inclusion in AVID: CVE-2021-29592 is a software vulnerability in TensorFlow Lite’s Reshape operator (null pointer dereference). TensorFlow/TFLite are core AI software/frameworks used in building and deploying general-purpose AI systems, and this vulnerability affects a dependency commonly used in AI pipelines (inference/runtime). It is a security/safety vulnerability with local attack vector and low impact per CVSS, and the report provides explicit references (CVE record, advisory, and commit) sufficient to classify it for AVID curation.
References
- NVD entry
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-jjr8-m8g8-p6wv
- https://github.com/tensorflow/tensorflow/commit/f8378920345f4f4604202d4ab15ef64b2aceaa16
Affected or Relevant Artifacts
- Developer: tensorflow
- Deployer: tensorflow
- Artifact Details:
| Type | Name |
|---|---|
| System | tensorflow |
Impact
AVID Taxonomy Categorization
- Risk domains: Security
- SEP subcategories: S0100: Software Vulnerability
- Lifecycle stages: L06: Deployment
CVSS
| Version | 3.1 |
| Vector String | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
| Base Score | 4.4 |
| Base Severity | 🟠 Medium |
| Attack Vector | LOCAL |
| Attack Complexity | 🟢 Low |
| Privileges Required | 🟢 Low |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | 🟢 Low |
| Availability Impact | 🟢 Low |
CWE
| ID | Description |
|---|---|
| CWE-476 | CWE-476: NULL Pointer Dereference |
Other information
- Report Type: Advisory
- Credits:
- Date Reported: 2021-05-14
- Version: 0.3.3
- AVID Entry